CN107967157A - Data processing method and device during a kind of generation OTA tundish - Google Patents
Data processing method and device during a kind of generation OTA tundish Download PDFInfo
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- CN107967157A CN107967157A CN201710706438.5A CN201710706438A CN107967157A CN 107967157 A CN107967157 A CN 107967157A CN 201710706438 A CN201710706438 A CN 201710706438A CN 107967157 A CN107967157 A CN 107967157A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44568—Immediately runnable code
- G06F9/44578—Preparing or optimising for loading
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/174—Redundancy elimination performed by the file system
- G06F16/1744—Redundancy elimination performed by the file system using compression, e.g. sparse files
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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Abstract
The present invention relates to data processing technique, data processing method and device during more particularly to a kind of generation OTA tundish.The problem of data of the data volume size in the system file of threshold value can not being compressed to solve to exist in the prior art, can not generate OTA tundish, and then can not generate OTA upgrade package.This method is：Terminal takes the mode of sectional compression, data volume size is divided into small documents of multiple data volume sizes in threshold range beyond the big file of threshold value to be compressed respectively, ultimately form OTA tundish, realize the compression for big file, and do not increase implementation complexity, effectively control cost of implementation, thus, can extensive use, manufacturer terminal can be handled the data in system file during tundish is generated using technical solution of the present invention, corresponding OTA tundish is smoothly obtained based on system file, and then obtain OTA upgrade package, so as to ensure that the smooth upgrading of terminal firmware.
Description
Technical field
The present invention relates to data processing technique, the data processing method during more particularly to a kind of generation OTA tundish
And device.
Background technology
Google issued AndroidL operating systems in 2014, and current major manufacturer terminal is all based in exploitation
The mobile terminal of AndroidL operating systems.AndroidL operating systems are higher to security requirement, in mobile terminal-opening mistake
Cheng Zhonghui carries out a series of verification, e.g., by the Android installation kit (AndroidPackage, APK) run on mobile terminal text
Class.dex files in part extract one by one to be verified, in this way, can cause the speed first powered on after system upgrade
Very slowly, user experience is poor.
In order to solve the problems, such as this, related technical personnel propose odex schemes.So-called odex schemes refer to：Manufacturer terminal
When generating firmware version, the class.dex files for needing to extract during mobile terminal-opening are extracted into progress in advance
Optimization and compiling, can generate discrete system upgrade file, to generating OTA after system upgrade compressing file in compilation process
Tundish, then, then using the script file of specified format is fabricated to OTA upgrade package by OTA tundish, wherein, will be in code
Compilation phase, odex files are compiled as by the class.dex files extracted in advance from system application.
When first powering on startup, AndroidL operating systems can be read in OTA upgrade package after system upgrade
Odex files, system detectio to odex so as to accelerate system without without extracting the class.dex files in APK file again, answering
Loading velocity and starting up speed.
However, existing tool of compression can read total data when performing compression from upgrade file, if adding
Data in odex files, can cause the total data after adding to exceed the upper limit that tool of compression allows compressed data, and execution follows
Ring redundancy check (Cyclic Redundancy Check, CRC) failure, so as to lead to not compress total data, Jin Erzao
The problem of can not being generated into OTA tundish.
The content of the invention
Data processing method and device during a kind of generation OTA tundish of offer of the embodiment of the present invention, to solve
Data of the data volume size in the system file of threshold value can not be compressed by existing in the prior art, and can not generate OTA
Tundish, and then the problem of OTA upgrade package can not be generated.
Concrete technical scheme provided in an embodiment of the present invention is as follows：
A kind of data processing method during generation OTA tundish, including：
Partial data is successively read from the system file being stored under different store paths, the system file includes：
For the upgrade file to system upgrade and for indicating to verify application program in the start-up course after system upgrade
Odex files；
According to the data summation in the upgrade file and the odex files, working as less than the data summation is read
Preceding partial data, and obtain current compression data after compressing the current portions data；
Current compression data and the compressed data compressed before current compression data are merged.
Optionally, the data summation in the upgrade file and the odex files, reads total less than the data
The current portions data of sum, including：
Pre-set the threshold value less than the data summation；
When the threshold value is not less than the size of the current portions data, the current portions data are compressed.
Optionally, current compression data and the compressed data compressed before current compression data are merged, specifically
Including：
First compressed data is obtained after the first partial data read before being compressed in the current portions data；
Are associated by processing and generates current temporary file for the current compression data and the formerly compressed data.
Optionally, to be associated processing generation to the current compression data and the formerly compressed data current interim
File, including：
The current compression data are preserved after the formerly pointer position of compressed data afterbody；
The pointer position is adjusted to the afterbody of the current compression data.
Optionally, further comprise：
If the first compressed data is not present before the current compression data, in volatile storage area
First place sets pointer position, and the current compression data are preserved after the pointer position.
Optionally, to be associated processing generation to the current compression data and the formerly compressed data current interim
File, further comprises：
The crc value of current compression data is added to the crc value that cumulative calculation obtains before the association process；
The cumulative calculation before the association process is updated with the accumulated value obtained after the current compression data that add up to obtain
The crc value arrived.
Optionally, further comprise：
After determining that the data in the upgrade file and the odex files have been read, work as to currently newest
Preceding temporary file is extracted, and obtains OTA tundish.
A kind of generating means of OTA tundish, include at least：Reading unit, compression unit, combining unit, wherein：
Reading unit, successively reads partial data, the system from the system file being stored under different store paths
File includes：For the upgrade file to system upgrade and for indicating in the start-up course after system upgrade to using journey
The odex files that sequence is verified；
Compression unit, according to the data summation in the upgrade file and the odex files, reading is less than the data
The current portions data of summation, and obtain current compression data after compressing the current portions data；
Combining unit, current compression data and the compressed data compressed before current compression data are merged.
Optionally, the data summation in the upgrade file and the odex files, reads total less than the data
During the current portions data of sum, the reading unit is used for：
Pre-set the threshold value less than the data summation；
When the threshold value is not less than the size of the current portions data, the current portions data are compressed.
Optionally, when current compression data and the compressed data compressed before current compression data being merged, institute
Combining unit is stated to be used for：
First compressed data is obtained after the first partial data read before being compressed in the current portions data；
Are associated by processing and generates current temporary file for the current compression data and the formerly compressed data.
Optionally, to be associated processing generation to the current compression data and the formerly compressed data current interim
File, the combining unit are used for：
The current compression data are preserved after the formerly pointer position of compressed data afterbody；
The pointer position is adjusted to the afterbody of the current compression data.
Optionally, the combining unit is further used for：
If the first compressed data is not present before the current compression data, in volatile storage area
First place sets pointer position, and the current compression data are preserved after the pointer position.
Optionally, to be associated processing generation to the current compression data and the formerly compressed data described current
During temporary file, the combining unit is further used for：
The crc value of current compression data is added to the crc value that cumulative calculation obtains before the association process；
The cumulative calculation before the association process is updated with the accumulated value obtained after the current compression data that add up to obtain
The crc value arrived.
Optionally, the combining unit is further used for：
After determining that the data in the upgrade file and the odex files have been read, work as to currently newest
Preceding temporary file is extracted, and obtains OTA tundish.
The present invention has the beneficial effect that：
In the embodiment of the present invention, for the system file of acquisition, terminal takes the mode of sectional compression, and data volume is big
The small big file beyond threshold value is divided into small documents of multiple data volume sizes in threshold range and is compressed respectively, and finally
A compressed package is formed, in this way, not only realizing the compression for big file, while compression efficiency is improved, also reduces pressure
Memory occupation rate in compression process, and implementation complexity is not increased using technical solution of the present invention, effectively control realization
Cost, therefore, it is possible to be used widely, manufacturer terminal can use technical solution of the present invention packet procedures among generation OTA
In the data in system file are handled, corresponding OTA tundish is smoothly obtained based on system file, and then obtain OTA
Upgrade package, so as to ensure that the smooth upgrading of terminal firmware.
Brief description of the drawings
Fig. 1 is the flow chart of the data processing during generation OTA tundish in the embodiment of the present invention；
Fig. 2 is OTA tundish storage organizations in the embodiment of the present invention；
Fig. 3 is terminal structure functional schematic in the embodiment of the present invention.
Embodiment
In the embodiment of the present invention, for the system file of acquisition, terminal takes the mode of sectional compression, and data volume is big
The small big file beyond threshold value is divided into small documents of multiple data volume sizes in threshold range and is compressed respectively, and finally
A compressed package is formed, is OTA tundish, terminal makes above-mentioned OTA tundish of script file that specifying,
It can obtain OTA upgrade package.
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in fig.1, in the embodiment of the present invention, the idiographic flow of the data processing during generation OTA tundish is such as
Under：
Step 100：Terminal reads current portions data from the system file being stored under different store paths, and counts
Count stating cyclic redundancy check (CRC) value of current portions data in.
Specifically, verification function and the parameter for calculating compressed file size function are all integers, for example, 32
In the Android operation system of position, it is 2 to take the greatest measure that 4 byte numbers are supported∧31- 1, i.e. 2G, so in the behaviour of 32
Make in system, when the data volume size of the system file of generation exceeds 2G, the Android operation system of 32 just can not be right
It is compressed.
So in embodiments of the present invention, a threshold value for being less than 2G is pre-set, while above-mentioned threshold value is less than
The data summation of system file, starts after the completion of the first partial data compression before current portions digital independent and reads currently
The process of partial data, when the current portions size of data of reading is equal to threshold value, then terminates to read current portions data
Process, wherein, said system file includes：For the upgrade file to system upgrade and for indicating after system upgrade
The odex files verified in start-up course to application program.Terminal is when the data to system file are read out, control
The data volume size of the current portions data of reading is less than or equal to above-mentioned threshold value, and for the current portions data read, presses
Corresponding crc value is calculated according to " generator polynomial " rule, is denoted as CRC1, and the affix after above-mentioned current portions data
State CRC1.
So-called cyclic redundancy check, is a kind of data transfer error detection mode, checks whether data occur in transmitting procedure
Mistake, to ensure the security of data transfer and integrality.
Step 101：The current portions data of the above-mentioned reading of terminal-pair are compressed, and are obtained based on above-mentioned current portions data
Obtain current compressed data.
Specifically, the current portions data of the above-mentioned reading of terminal-pair obtain current compression data after being compressed, and ought
Preceding compressed data and corresponding crc value are stored to volatile storage area.
Step 102：Terminal judges to whether there is first compressed data before above-mentioned current compression data, wherein, formerly
Compressed data refers to：The compression number obtained after the first partial data that terminal is read before being compressed in above-mentioned current compression data
According to, if so, step 104 is performed, and otherwise, execution step 103.
Step 103：The first in volatile storage area sets pointer position, and to upper after above-mentioned pointer position
Current compression data are stated to be preserved, and using above-mentioned current compression data as current temporary file.
Step 104：First compressed data and current compression data are associated by terminal in volatile storage area
Processing, and using association process result as current temporary file.
Specifically, terminal adjusts the position of pointer in volatile storage area, pointer is directed toward to the tail of first compressed data
Portion, and after pointer position, above-mentioned current compression data being preserved, and by above-mentioned formerly compressed data and current compression
Data are associated processing, using association process result as current temporary file.
As shown in fig.2, the current temporary file in volatile storage area includes：SYSTEM files, RECOVERY texts
Multiple files such as part, RADIO files, by taking current compression data are META files as an example, at this time, first compressed data includes：
SYSTEM files, RECOVERY files, RADIO files and OTA files, wherein, above-mentioned OTA files are generation OTA tundish institutes
The system file needed, is not OTA tundish.Above-mentioned formerly compressed data and current compression data are associated processing,
Current temporary file is obtained, then current temporary file includes at this time：SYSTEM files, RECOVERY files, RADIO texts
Part, OTA files and META files.
When the first compressed data of terminal-pair and current compression data are associated processing, by first compressed data and currently
Compressed data merges, and the crc value of current compression data then is added to the cumulative calculation before above-mentioned association process obtains
The crc value of the first compressed data arrived, and the accumulated value to be obtained after the above-mentioned current compression data that add up is updated in the association
The crc value that cumulative calculation obtains before processing.
Using the crc value of current compression data as CRC1, the CRC values of the first compressed data before association process are CRC2
Exemplified by, optionally, when terminal-pair CRC1 and CRC2 are associated calculating, preceding 30 data of CRC1 are carried out with extraction and is used as the
One group of data, carries out preceding 30 data of CRC2 extraction and is used as second group of data, terminal is since the 1st data, to above-mentioned
Identical two data carry out AND operation to first group of data with second group of data median, and using the result of AND operation as
New crc value, if detecting new crc value, then it represents that current read data success boil down to current compression data.
Step 105：Whether the data in said system file, which read, finishes, if so, performing step 106, otherwise, returns
Step 100.
The data volume of current portions digital independent is added to the cumulative calculation before above-mentioned current portions data are read to obtain
The aggregate-value of the first partial data arrived, the aggregate-value obtained after the data volume for the above-mentioned current portions data that add up are equal to upper
When stating the data summation of system file, determine that the digital independent in said system file finishes.
Step 106：Terminal performs flush operations and the current temporary file of volatile storage area is synchronized on disk,
And packing is carried out to above-mentioned current temporary file and obtains OTA tundish.
Specifically, the current temporary file of volatile storage area includes：After terminal-pair system file is read several times
The first compressed data that the multiple current compression data accumulations being compressed obtain, and multiple current compression data
The crc value that crc value cumulative calculation obtains.
Based on above-described embodiment, as shown in fig.3, in the embodiment of the present invention, the number of packet procedures among a kind of generation OTA
According to processing unit, include at least：Reading unit 30, compression unit 31, combining unit 32, wherein：
Reading unit 30, successively reads partial data, the system from the system file being stored under different store paths
System file includes：For the upgrade file to system upgrade and for indicating in the start-up course after system upgrade to application
The odex files that program is verified；
Compression unit 31, according to the data summation in the upgrade file and the odex files, reading is less than the number
According to the current portions data of summation, and current compression data are obtained after compressing the current portions data；
Combining unit 32, current compression data and the compressed data compressed before current compression data are merged.
Optionally, the data summation in the upgrade file and the odex files, reads total less than the data
During the current portions data of sum, the reading unit 30 is used for：
Pre-set the threshold value less than the data summation；
When the threshold value is not less than the size of the current portions data, the current portions data are compressed.
Optionally, when current compression data and the compressed data compressed before current compression data being merged, institute
Combining unit 32 is stated to be used for：
First compressed data is obtained after the first partial data read before being compressed in the current portions data；
Are associated by processing and generates current temporary file for the current compression data and the formerly compressed data.
Optionally, to be associated processing generation to the current compression data and the formerly compressed data current interim
File, the combining unit 32 are used for：
The current compression data are preserved after the formerly pointer position of compressed data afterbody；
The pointer position is adjusted to the afterbody of the current compression data.
Optionally, the combining unit 32 is further used for：
If the first compressed data is not present before the current compression data, in volatile storage area
First place sets pointer position, and the current compression data are preserved after the pointer position.
Optionally, to be associated processing generation to the current compression data and the formerly compressed data described current
During temporary file, the combining unit 32 is further used for：
The crc value of current compression data is added to the crc value that cumulative calculation obtains before the association process；
The cumulative calculation before the association process is updated with the accumulated value obtained after the current compression data that add up to obtain
The crc value arrived.
Optionally, the combining unit 32 is further used for：
After determining that the data in the upgrade file and the odex files have been read, work as to currently newest
Preceding temporary file is extracted, and obtains OTA tundish.
In conclusion AndroidL operating systems are installed in user into line program, brush into read-only storage mirror image (Read
Only Memory image, ROM) or the operation of incremental update after, first start mobile terminal when, can perform .dex forms
File is converted to .oat formatted files this operations, and in AndroidL operating systems, since substantial amounts of odex files occupy
Part system space resources, terminal can not complete the implementation of odex schemes, and in embodiments of the present invention, and terminal is from being stored in
System file under different store paths is successively read out current portions data several times, since default threshold value will not
The threshold range that can be compressed more than terminal, so terminal can carry out multiple current portions data of reading respectively
Compression, so, after the current temporary file of volatile storage area is synchronized on disk by terminal execution flush operations, extraction
Go out current newest current temporary file, as final compressed package, obtained final compressed package is OTA tundish, is had
Effect ensure that the implementation of odex schemes, and above-mentioned transfer process is shorter than the time for not using odex schemes to spend using odex schemes,
The starting up speed of mobile terminal is further speeded up.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer journey
Sequence product.Therefore, in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware
The form of embodiment.Moreover, the present invention can use the calculating for wherein including computer usable program code in one or more
The computer program that machine usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions each in flowchart and/or the block diagram
The combination of flow and/or square frame in flow and/or square frame and flowchart and/or the block diagram.These computers can be provided
Processor of the programmed instruction to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices
To produce a machine so that the instruction performed by computer or the processor of other programmable data processing devices produces
It is used for realization the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Device.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included
The manufacture of command device, the command device are realized in one flow of flow chart or multiple flows and/or one square frame of block diagram
Or the function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that
Series of operation steps is performed on computer or other programmable devices to produce computer implemented processing, so as to calculate
The instruction performed on machine or other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or side
The step of function of being specified in one square frame of block diagram or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic wound
The property made concept, then can make these embodiments other change and modification.So appended claims are intended to be construed to wrap
Include preferred embodiment and fall into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this
The spirit and scope of inventive embodiments.Wanted in this way, if these modifications and variations of the embodiment of the present invention belong to right of the present invention
Ask and its equivalent technologies within the scope of, then the present invention be also intended to include these modification and variations including.
Claims (10)
- A kind of 1. data processing method during generation OTA tundish, it is characterised in that including：Partial data is successively read from the system file being stored under different store paths, the system file includes：For Upgrade file to system upgrade and for indicating what is verified in the start-up course after system upgrade to application program Odex files；According to the data summation in the upgrade file and the odex files, the current portions less than the data summation are read Data, and obtain current compression data after compressing the current portions data；The current compression data and the compressed data compressed before the current compression data are merged.
- 2. the method as described in claim 1, it is characterised in that according to the data in the upgrade file and the odex files Summation, reads the current portions data less than the data summation, including：Pre-set the threshold value less than the data summation；When the threshold value is not less than the size of the current portions data, the current portions data are compressed.
- 3. method as claimed in claim 1 or 2, it is characterised in that by the current compression data and in the current compression Data are compressed obtained compressed data and are merged before, specifically include：First compressed data is obtained after the first partial data read before being compressed in the current portions data；Are associated by processing and generates current temporary file for the current compression data and the formerly compressed data.
- 4. method as claimed in claim 3, it is characterised in that to the current compression data and it is described formerly compressed data into Row association process generates current temporary file, including：The current compression data are preserved after the formerly pointer position of compressed data afterbody；The pointer position is adjusted to the afterbody of the current compression data.
- 5. method as claimed in claim 4, it is characterised in that further comprise：If the first compressed data is not present before the current compression data, set in the first place of volatile storage area Pointer position is put, and the current compression data are preserved after the pointer position.
- 6. method as claimed in claim 3, it is characterised in that to the current compression data and it is described formerly compressed data into Row association process generates current temporary file, further comprises：The crc value of current compression data is added to the crc value that cumulative calculation obtains before the association process；Update what the cumulative calculation before the association process obtained with the accumulated value obtained after the current compression data that add up Crc value.
- 7. the method as described in claim 4-6, it is characterised in that further comprise：The data volume of the current portions digital independent is added to the cumulative calculation before the current portions data are read to obtain The aggregate-value of the formerly partial data arrived；When the aggregate-value obtained after the data volume that adds up is equal to the data summation, after the current temporary file packing Obtain OTA tundish.
- 8. a kind of generating means of OTA tundish, it is characterised in that include at least：Reading unit, compression unit, combining unit, Wherein：Reading unit, successively reads partial data, the system file from the system file being stored under different store paths Including：For the upgrade file to system upgrade and for indicating to carry out application program in the start-up course after system upgrade The odex files of verification；Compression unit, according to the data summation in the upgrade file and the odex files, reading is less than the data summation Current portions data, and obtain current compression data after compressing the current portions data；Combining unit, current compression data and the compressed data compressed before current compression data are merged.
- 9. device as claimed in claim 8, it is characterised in that compressed by current compression data and before current compression data When obtained compressed data merges, the combining unit is used for：First compressed data is obtained after the first partial data read before being compressed in the current portions data；Are associated by processing and generates current temporary file for the current compression data and the formerly compressed data.
- 10. device as claimed in claim 8 or 9, it is characterised in that the combining unit is further used for：The data volume of the current portions digital independent is added to the cumulative calculation before the current portions data are read to obtain The aggregate-value of the formerly partial data arrived；When the aggregate-value obtained after the data volume that adds up is equal to the data summation, after the current temporary file packing Obtain OTA tundish.
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| CN109947450A (en) * | 2019-03-19 | 2019-06-28 | 深圳创维－Rgb电子有限公司 | System file upgrade method, device, mobile terminal and readable storage medium storing program for executing |
| CN112579206A (en) * | 2020-12-24 | 2021-03-30 | 青岛海信移动通信技术股份有限公司 | Application starting performance optimization method and terminal equipment |
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