CN108509641A

CN108509641A - Method, apparatus, server and the system of file backup

Info

Publication number: CN108509641A
Application number: CN201810321545.0A
Authority: CN
Inventors: 谢纲; 张晨; 周应超
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-04-11
Filing date: 2018-04-11
Publication date: 2018-09-07
Anticipated expiration: 2038-04-11
Also published as: CN108509641B

Abstract

The disclosure is directed to a kind of method, apparatus of file backup, server and systems, to reduce data redundancy when file backup.The method includes：Create memory space corresponding with source file；Determine at least one data block changed between the two neighboring snapshot of source file；The corresponding variable quantity of at least one data block changed and modification time are stored in memory space；The data update of server based on file backup is asked, and the corresponding variable quantity of at least one data block changed and modification time that are preserved in memory space are sent to the server of file backup.Disclosed technique scheme can greatly reduce the data redundancy of file backup, can improve backup rate.

Description

Method, apparatus, server and the system of file backup

Technical field

This disclosure relates to Internet technical field more particularly to a kind of method, apparatus of file backup, server and be System.

Background technology

In the related technology, many file system, such as HDFS (Hadoop distributed file systems) provide file to the user Snapshot functions.Wherein, File Snapshot is read, the full content of this document can be actually obtained, it is, File Snapshot function is pair File carries out full backup.For some important data files, need to realize schedule backup.It, will if all doing full backup Great data redundancy is brought, while influencing backup rate.So how to carry out backup to file is need to solve at present one A technical problem.

Invention content

To overcome the problems in correlation technique, the embodiment of the present disclosure provides a kind of method, apparatus of file backup, clothes Business device and system, to reduce data redundancy when file backup.

According to the first aspect of the embodiments of the present disclosure, a kind of method of file backup is provided, including：

Create memory space corresponding with source file；

Determine at least one data block changed between the two neighboring snapshot of the source file；

The corresponding variable quantity of at least one data block changed and modification time are stored in described deposit Store up space；

The data update of server based on file backup is asked, described at least one by what is preserved in the memory space The corresponding variable quantity of data block and modification time changed are sent to the server of file backup.

In one embodiment, at least one between the two neighboring snapshot of the determination source file is changed Before data block, it may also include：

Determine the first backup file of the source file；

The first backup file is sent to the server of the file backup.

In one embodiment, described that at least one data block changed preserved in the memory space is each Self-corresponding variable quantity and modification time are sent to after the server of file backup, may also include：

Determine start time point and end time point；

The first instruction for obtaining the second backup file is sent based on the start time point and the end time point To the server of the file backup；The second backup file includes the data and modification time of the first backup file Positioned at the start time point to the variable quantity between the end time point；

Receive the second backup file that the server of the file backup is returned based on first instruction.

In one embodiment, described that at least one data block changed preserved in the memory space is each Self-corresponding variable quantity and modification time are sent to before the server of file backup, may also include：

If it is determined that the source file is deleted, it is determined that the source file deleted time point；

The time point that the source file is deleted is stored in the memory space；

At least one corresponding variable quantity of the data block changed that will be preserved in the memory space And modification time is sent to the server of file backup, including：

It is standby that the time point that the variable quantity, the modification time and the source file are deleted is sent to the file The server of part.

In one embodiment, described to be sent based on the start time point and the end time point for obtaining second After first instruction of backup file is to the server of the file backup, it may also include：

The third backup file that the server of the file backup is returned based on first instruction is received, the third is standby Part file includes the data of the first backup file and the time point that the start time point is deleted to the source file Between the variable quantity；The source file deleted time point be located at the start time point and the end time point it Between.

In one embodiment, it is described by least one corresponding first variable quantity of the data block changed with And modification time is stored in before the memory space, may also include：

Determine the corresponding data block identifier of at least one data block changed；

Determine corresponding operation code when at least one data block changed is changed；

Determine that at least one data block changed is respectively right with the data block identifier based on the operation code The variable quantity answered.

According to the second aspect of the embodiment of the present disclosure, a kind of method of file backup is provided, the method includes：

Transmission data update request；

Receive at least one corresponding variable quantity of the data block changed that update request returns based on the data And modification time.

In one embodiment, the reception at least one data changed that update request returns based on the data Before the corresponding variable quantity of block and modification time, it may also include：

Receive the first backup file of source file.

In one embodiment, the reception at least one data changed that update request returns based on the data After the corresponding variable quantity of block and modification time, it may also include：

Receive the first instruction for obtaining the second backup file；First instruction carries start time point at the end of Between point；

It determines the variable quantity of the modification time between the start time point and end time point, obtains One variation duration set；

Described first is changed sequence and the first backup text of the variable quantity according to modification time in duration set Part merges, and obtains the second backup file；

The second backup file is returned based on first instruction.

In one embodiment, the reception at least one data changed that update request returns based on the data The corresponding variable quantity of block and modification time, it may include：

Receive the variable quantity, the modification time and the source file deleted time point.

In one embodiment, after first instruction received for obtaining the second backup file, may also include：

If the source file deleted time point between the start time point and end time point, It determines the variable quantity that modification time was located between the time point that the start time point and the source file are deleted, obtains Second variation duration set；

Described second is changed sequence and the first backup text of the variable quantity according to modification time in duration set Part merges, and obtains third backup file；

The third backup file is returned based on first instruction.

According to the third aspect of the embodiment of the present disclosure, a kind of device of file backup is provided, described device includes：

First creation module is configured as creating memory space corresponding with source file；

First determining module, be configured to determine that between the two neighboring snapshot of the source file at least one is changed Data block；

First preserving module, be configured as the corresponding variable quantity of at least one data block changed and Modification time is stored in the memory space；

First sending module is configured as the data update request of the server based on file backup, by storage sky Between middle preservation the corresponding variable quantity of at least one data block changed and modification time to be sent to file standby The server of part.

In one embodiment, described device may also include：

Second determining module is configured to determine that the first backup file of the source file；

Second sending module is configured as the first backup file being sent to the server of the file backup.

In one embodiment, described device may also include：

Third determining module is configured to determine that start time point and end time point；

Third sending module is configured as sending for obtaining the based on the start time point and the end time point Server of first instruction of two backup files to the file backup；The second backup file includes the first backup text The data and modification time of part are located at the start time point to the variable quantity between the end time point；

First receiving module is configured as receiving the institute that the server of the file backup is returned based on first instruction State the second backup file.

In one embodiment, described device may also include：

4th determining module is configured as after determining that the source file is deleted, and determines what the source file was deleted Time point；

Second preserving module is configured as the time point that the source file is deleted being stored in the memory space；

First sending module is additionally configured to the variable quantity, the modification time and the source file quilt The time point of deletion is sent to the server of the file backup.

In one embodiment, described device may also include：

Second receiving module is configured as receiving the server of the file backup is returned based on first instruction the Three backup files, the third backup file include the first backup file data and the start time point to described The variable quantity between source file deleted time point；The source file deleted time point is located at the initial time Between point and end time point.

In one embodiment, described device may also include：

5th determining module is configured to determine that the corresponding data block identifier of at least one data block changed；

6th determining module is configured to determine that corresponding operation when at least one data block changed is changed Code；

7th determining module is configured as determining with the data block identifier based on the operation code described at least one The corresponding variable quantity of data block changed.

According to the fourth aspect of the embodiment of the present disclosure, a kind of server of file backup is provided, the server includes：

4th sending module is configured as transmission data update request；

Third receiving module is configured as receiving at least one number changed that update request returns based on the data According to the corresponding variable quantity of block and modification time.

In one embodiment, the server, may also include：

4th receiving module is configured as receiving the first backup file of source file.

In one embodiment, the server, may also include：

5th receiving module is configured as receiving the first instruction for obtaining the second backup file；First instruction Carry start time point and end time point；

First acquisition module, be configured to determine that modification time be located at the start time point and the end time point it Between the variable quantity, obtain the first variation duration set；

First merging module is configured as the variable quantity in the first variation duration set according to modification time Sequence is merged with the first backup file, obtains the second backup file；

5th sending module is configured as returning to the second backup file based on first instruction.

In one embodiment, the third receiving module, when being also configured to receive the variable quantity, the modification Between and the source file deleted time point.

In one embodiment, the server, may also include：

Second acquisition module is configured as being located at the start time point and institute at the time point that the source file is deleted After stating between end time point, it is determined that modification time is located at the time point that the start time point is deleted with the source file Between the variable quantity, obtain the second variation duration set；

Second merging module is configured as the variable quantity in the second variation duration set according to modification time Sequence is merged with the first backup file, obtains third backup file；

6th sending module is configured as returning to the third backup file based on first instruction.

According to a fifth aspect of the embodiments of the present disclosure, a kind of system of file backup is provided, the system comprises：Above-mentioned The server of the device of file backup and above-mentioned file backup.

According to the 6th of the embodiment of the present disclosure the aspect, a kind of device of file backup is provided, described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Create memory space corresponding with source file；

According to the 7th of the embodiment of the present disclosure the aspect, a kind of server of file backup is provided, the server includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Transmission data update request；

According to the eighth aspect of the embodiment of the present disclosure, a kind of computer readable storage medium is provided, is stored thereon with calculating Machine program, the computer program realize following steps when being executed by processor：

Create memory space corresponding with source file；

According to the 9th of the embodiment of the present disclosure the aspect, a kind of computer readable storage medium is provided, calculating is stored thereon with Machine program, the computer program realize following steps when being executed by processor：

Transmission data update request；

The technical scheme provided by this disclosed embodiment can include the following benefits：In the mistake backed up to file Cheng Zhong, the device of file backup can first create memory space corresponding with source file, and by the two neighboring snapshot of source file Between at least one data block changed and modification time be stored in the memory space, receiving file backup It is after the data update request of server, at least one data block changed preserved in memory space is corresponding The server that variable quantity and modification time are sent to file backup is backed up.In this way, in the mistake backed up to source file Cheng Zhong can back up at least one corresponding variable quantity of the data block changed between two neighboring snapshot, Rather than back up the corresponding data of each snapshot of source file, the data redundancy of file backup is considerably reduced, it can To improve backup rate.Moreover, the file backup that the device of file backup is stored may be implemented to the server of file backup File remote backup, data degradation caused by avoiding the device of file backup from damaging, improves Disaster Defense Capability.

According to the tenth of the embodiment of the present disclosure the aspect, a kind of method of file backup is provided, the method includes：

Create memory space corresponding with source file；

The corresponding variable quantity of at least one data block changed and modification time are stored in described deposit Store up space.

Determine the 4th backup file of the source file；

The 4th backup file is stored in the memory space.

In one embodiment, described by the corresponding variable quantity of at least one data block changed and to repair Changing the time is stored in after the memory space, may also include：

Determine start time point and end time point；

Determine that modification time is located at the start time point to the end at least one data block changed The variable quantity between time point obtains third variation duration set；

The third is changed into sequence and the fourth backup text of the variable quantity in duration set according to modification time Part merges, and obtains the 5th backup file.

In one embodiment, after the 4th backup file of the determination source file, may also include：

The time point that the source file is deleted is stored in the memory space.

In one embodiment, after the determining start time point and end time point, may also include：

If it is determined that the source file deleted time point be located at the start time point and the end time point it Between, it is determined that modification time is located at the start time point and the source file quilt at least one data block changed The variable quantity between the time point of deletion obtains the 4th variation duration set；

Described 4th is changed sequence and the fourth backup text of the variable quantity according to modification time in duration set Part merges, and obtains the 6th backup file.

In one embodiment, described by the corresponding variable quantity of at least one data block changed and to repair Changing the time is stored in before the memory space, may also include：

On the one hand according to the tenth of the embodiment of the present disclosure the, a kind of device of file backup is provided, described device includes：

Second creation module is configured as creating memory space corresponding with source file；

8th determining module, be configured to determine that between the two neighboring snapshot of the source file at least one is changed Data block；

Third preserving module, be configured as the corresponding variable quantity of at least one data block changed and Modification time is stored in the memory space.

In one embodiment, described device may also include：

9th determining module is configured to determine that the 4th backup file of the source file；

4th preserving module is configured as the 4th backup file being stored in the memory space.

In one embodiment, described device may also include：

Tenth determining module is configured to determine that start time point and end time point；

Third acquisition module is configured to determine that at least one data block changed that modification time is located at described Start time point obtains third variation duration set to the variable quantity between the end time point；

Third merging module is configured as the variable quantity in third variation duration set according to modification time Sequence is merged with the 4th backup file, obtains the 5th backup file.

In one embodiment, described device may also include：

11st determining module is configured as after determining that the source file is deleted, and determines that the source file is deleted Time point；

5th preserving module is configured as the time point that the source file is deleted being stored in the memory space.

In one embodiment, described device may also include：

4th acquisition module is configured as determining that the source file deleted time point is located at the start time point After between the end time point, when determining that modification time is located at the starting at least one data block changed Between put the variable quantity between time point that the source file is deleted, obtain the 4th variation duration set；

4th merging module is configured as the variable quantity in the 4th variation duration set according to modification time Sequence is merged with the 4th backup file, obtains the 6th backup file.

In one embodiment, described device may also include：

12nd determining module is configured to determine that the corresponding data block mark of at least one data block changed Know；

13rd determining module is configured to determine that corresponding behaviour when at least one data block changed is changed Make code；

14th determining module is configured as based at least one described in the operation code and data block identifier determination A corresponding variable quantity of the data block changed.

According to the 12nd of the embodiment of the present disclosure the aspect, a kind of device of file backup is provided, described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Create memory space corresponding with source file；

According to the 13rd of the embodiment of the present disclosure the aspect, a kind of computer readable storage medium is provided, meter is stored thereon with Calculation machine program, the computer program realize following steps when being executed by processor：

Create memory space corresponding with source file；

The technical scheme provided by this disclosed embodiment can include the following benefits：In the mistake backed up to file Cheng Zhong, the device of file backup can first create memory space corresponding with source file, and by the two neighboring snapshot of source file Between at least one data block changed and modification time be stored in the memory space.In this way, to source file into It, can be by least one corresponding variable quantity of the data block changed between two neighboring snapshot during row backup It is backed up, rather than the corresponding data of each snapshot of source file is backed up, considerably reduce the number of file backup According to redundancy, backup rate can be improved.

It should be understood that above general description and following detailed description is only exemplary and explanatory, not The disclosure can be limited.

Description of the drawings

The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the present invention Example, and be used to explain the principle of the present invention together with specification.

Fig. 1 is the application scenario diagram according to the method for the file backup shown in disclosure exemplary embodiment.

Fig. 2 is the flow chart according to the method for the file backup shown in an exemplary embodiment.

Fig. 3 is the flow chart according to the method for the file backup shown in an exemplary embodiment.

Fig. 4 is the flow chart according to the method for the file backup shown in an exemplary embodiment one.

Fig. 5 is the flow chart according to the method for the file backup shown in an exemplary embodiment one.

Fig. 6 is the flow chart according to the method for the file backup shown in an exemplary embodiment two.

Fig. 7 is the flow chart according to the method for the file backup shown in an exemplary embodiment two.

Fig. 8 is the flow chart according to the method for the file backup shown in an exemplary embodiment.

Fig. 9 is the flow chart according to the method for the file backup shown in an exemplary embodiment one.

Figure 10 is the flow chart according to the method for the file backup shown in an exemplary embodiment two.

Figure 11 A are a kind of block diagrams of the device of file backup shown according to an exemplary embodiment.

Figure 11 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment.

Figure 12 A are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment.

Figure 12 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment.

Figure 13 A are a kind of block diagrams of the server of file backup shown according to an exemplary embodiment.

Figure 13 B are a kind of block diagrams of the server of the file backup shown according to another exemplary embodiment.

Figure 14 is a kind of block diagram of the server of the file backup shown according to another exemplary embodiment.

Figure 15 A are a kind of block diagrams of the device of file backup shown according to an exemplary embodiment.

Figure 15 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment.

Figure 16 A are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment.

Figure 16 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment.

Figure 17 is a kind of block diagram of the device of file backup shown according to an exemplary embodiment.

Figure 18 is a kind of block diagram of the device of file backup shown according to an exemplary embodiment.

Specific implementation mode

Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended The example of the consistent device and method of some aspects being described in detail in claims, of the invention.

Fig. 1 can be passed through according to the application scenario diagram of the method for the file backup shown in disclosure exemplary embodiment Terminal device 11 is realized, can also be realized by the server 12 of terminal device 11 and file backup.In an application scenarios, Can be the file backup that will be stored in 11 1 disks of terminal device to another magnetic when being realized by terminal device 11 Disk.It is by terminal device when being realized by the server 12 of terminal device 11 and file backup in another application scenarios In file backup to the server 12 of file backup in 11.Wherein, terminal device 11 can be independent terminal device, also may be used To be the terminal device in file system, for example, a server in the server cluster of carrying distributed file system.

Fig. 2 is the flow chart of the method for the file backup executed according to the terminal device 11 shown in an exemplary embodiment, Fig. 3 is the flow chart of the method for the file backup executed according to the server 12 of the file backup shown in an exemplary embodiment, As shown in Figure 2 and Figure 3, the method for this document backup includes the following steps S201~S204 and S301~S302：

In step s 201, memory space corresponding with source file is created.

In step S202, at least one data changed between the two neighboring snapshot of the source file are determined Block.

In step S203, by the corresponding variable quantity of at least one data block changed and modification time It is stored in the memory space.

In step S204, the data update of the server based on file backup is asked, and will be preserved in the memory space The corresponding variable quantity of at least one data block changed and modification time be sent to the service of file backup Device.

In step S301, transmission data update request.

In step s 302, at least one data block changed of update request return based on the data is received respectively Corresponding variable quantity and modification time.

In step S201~S204 and S301~S302, terminal device 11 is corresponded in the source file for localling create storage Memory space, which is used to store at least one data block changed between the two neighboring snapshot of source file Variable quantity and modification time.Terminal device 11 just starts fast per adjacent two to source file after creating memory space Capable comparison is shone into, determines at least one data block changed between each adjacent two snapshot, and changed at least one The corresponding variable quantity of data block and modification time be stored in memory space.Wherein, snapshot is the source file of crawl Data content.Terminal device 11 is in the data update request that the server 12 for receiving file backup is sent, by memory space The corresponding variable quantity of at least one data block changed and modification time of middle preservation are sent to file backup Server 12 backed up.This is properly termed as the incremental backup of file, since the data volume of backup is smaller, can save backup Occupied memory space can improve backup rate also due to the data volume of backup is smaller.

It in the present embodiment, can be according to preset mode between the two neighboring snapshot of source file in memory space At least one data block changed variable quantity and the data such as modification time carry out tissue, for example, by data with data The form in library is stored.

In one exemplary embodiment, terminal device 11 acquires the snapshot of source file according to the preset period, and to source Corresponding data block is compared between the two neighboring snapshot of file, obtains the corresponding variable quantity of the data block changed And modification time.In the present example embodiment, source file includes data block 01,02 and 03, is obtaining the 1st of source file After a snapshot and second snapshot, the 1st snapshot is compared with second snapshot, can obtain data block 01,02 with And the variable quantity and modification time for the data block changed in 03, and store that data in source file in terminal device 11 In corresponding memory space.Wherein, as shown in table 1, at the t1 moment, the knots modification of data block 01,03 is respectively A1, C1, in t2 The knots modification at moment, data block 01,02 is respectively A2, B1, and at the t3 moment, the knots modification of data block 02,03 is respectively B2, C2. Wherein, t1 is located at before t2, and t2 is located at before t3.

It in one exemplary embodiment, can be according to the sequencing of modification time in data block 01,02 and 03 The variable quantity for the data block changed is stored, and specific storage form can be with reference table 2.

The data block of 1 source file of table changes scale

In one exemplary embodiment, terminal device 11 is in the clothes that the data in storage centre are sent to file backup It is engaged in after device 12, memory space can be cleared up, in this way, the memory space that backup file is brought to terminal device can be reduced Pressure.In another exemplary embodiment, the data in storage centre are being sent to file backup by terminal device 11 After server 12, memory space can not be cleared up, however, it is possible to follow-up newer data cover historical data, this Sample can also reduce the pressure for the memory space that backup file is brought to terminal device 11.

The data block of 2 source file of table changes scale

Data block identifier	Data block knots modification	Modification time
			01	A1	t1
03	C1	t1
			01	A2	t2
02	B1	t2
			02	B2	t3
03	C2	t3

In the present embodiment, during being backed up to file, the device (such as terminal device 11) of file backup It can first create memory space corresponding with source file, and at least one between the two neighboring snapshot of source file is changed Data block and modification time be stored in the memory space, the server for receiving file backup data update ask Afterwards, the corresponding variable quantity of at least one data block changed and modification time that are preserved in memory space are sent out The server for giving file backup is backed up.It, can will be two neighboring fast in this way, during being backed up to source file At least one corresponding variable quantity of the data block changed according between is backed up, rather than each of source file is fast It is backed up according to corresponding data, considerably reduces the data redundancy of file backup, backup rate can be improved.Moreover, will The file backup of the device storage of file backup may be implemented file remote backup, avoid file to the server of file backup Data degradation caused by the device damage of backup, improves Disaster Defense Capability.

Determine the first backup file of the source file；

The first backup file is sent to the server of the file backup.

Determine start time point and end time point；

The time point that the source file is deleted is stored in the memory space；

Specifically how file backup is carried out, please refers to subsequent embodiment.

So far, the above method that the embodiment of the present disclosure provides can incite somebody to action during being backed up to source file At least one corresponding variable quantity of the data block changed between two neighboring snapshot is backed up, rather than by source document The corresponding data of each snapshot of part are backed up, and the data redundancy of file backup is considerably reduced, and can improve backup speed Degree.Moreover, it is remotely standby that file may be implemented to the server of file backup in the file backup that the device of file backup is stored Part, data degradation caused by avoiding the device of file backup from damaging improves Disaster Defense Capability.

The technical solution of embodiment of the present disclosure offer is provided with specific embodiment below.

Fig. 4 is the flow of the method for the file backup executed according to the terminal device 11 shown in an exemplary embodiment one Figure；Fig. 5 is the stream of the method for the file backup executed according to the server 12 of the file backup shown in an exemplary embodiment one Cheng Tu；The present embodiment utilize the embodiment of the present disclosure provide the above method, with how according to start time point input by user with And end time point is to be illustrated for condition obtains backup file, as shown in figs. 4 and 5, this document backup Method includes the following steps S401~S409 and S501~S507：

In step S401, the first backup file of the source file is determined.

In step S402, the first backup file is sent to the server of the file backup.

In step S403, memory space corresponding with source file is created.

In step s 404, at least one data changed between the two neighboring snapshot of the source file are determined Block.

In step S405, by the corresponding variable quantity of at least one data block changed and modification time It is stored in the memory space.

In step S406, the data update of the server based on file backup is asked, and will be preserved in the memory space The corresponding variable quantity of at least one data block changed and modification time be sent to the service of file backup Device.

In step S 407, start time point and end time point are determined.

In step S408, sent based on the start time point and the end time point for obtaining the second backup text Server of first instruction of part to the file backup；The second backup file includes the data of the first backup file And modification time is located at the start time point to the variable quantity between the end time point；

In step S409, the server for receiving the file backup is standby based on described the second of the first instruction return Part file.

In step S501, the first backup file of source file is received.

In step S502, transmission data update request.

In step S503, at least one data block changed of update request return based on the data is received respectively Corresponding variable quantity and modification time.

In step S504, the first instruction for obtaining the second backup file is received；First instruction carries starting Time point and end time point.

In step S505, determine that modification time is described between the start time point and end time point Variable quantity obtains the first variation duration set.

In step S506, described first is changed sequence and institute of the variable quantity according to modification time in duration set It states the first backup file to merge, obtains the second backup file.

In step s 507, it is based on first instruction and returns to the second backup file.

In step S401~S402 and S501, the first backup file is the primary data of source file, is that source file exists By the data before changing.First backup file is sent to the server 12 of the file backup by terminal device 11, can be right The primary data of source file is backed up, for subsequently obtaining the backup file for the source file changed.

In the present embodiment, step S403~S406 is similar to S201~S204 in embodiment shown in Fig. 2, step S301~S302 in the embodiments of S502~S503 as shown in figure 3 is similar, and details are not described herein.

It in step S 407, can be according to practical need when user needs the server 12 of file backup to obtain backup file Ask the stop time point that modification time is inputted to terminal device 11, such as t3 moment.When terminal device 11 receive it is input by user After the stop time point of modification time, source file storage to local time point is determined as start time point, user is inputted The stop time point of modification time be determined as end time point.

In step S408, terminal device 11 is based on the start time point and is sent with the end time point for obtaining Server 12 of first instruction of the second backup file to the file backup.Wherein, the second backup file includes described The data and modification time of first backup file are located at the start time point to the change between the end time point Change amount.Continue exemplary embodiments mentioned above, if end time point is t3, the data of the second backup file include first standby The data of the knots modifications such as the data of part file and A1, A2, B1, B2, C1 and C2.

In S504~S507, after the server 12 of file backup receives the first instruction, carried according to the first instruction Start time point and the end time point, are searched from database, determine that modification time is located at the start time point All changes amount between the end time point, obtains the first variation duration set.After obtaining the first variation duration set, text The server 12 of part backup changes sequence and described the of the variable quantity in duration set according to modification time by described first One backup file merges, and obtains the second backup file, and will be based on first instruction and return the second backup file Back to terminal device 11.

Continue exemplary embodiments mentioned above, if the end time point carried in the first instruction is t3, the first variation Duration set includes the knots modifications such as A1, A2, B1, B2, C1 and C2.The server 12 of file backup successively by A1, C1, A2, B1, B2, C2 are merged with the first backup file, obtain the second backup file.

In step S409, the second of server 12 return of the terminal device 11 based on the first command reception file backup is standby Part file.

In one exemplary embodiment, further comprising the steps of after step S202, before step S203：(1) really Determine the corresponding data block identifier of at least one data block changed；(2) at least one data changed are determined Block corresponding operation code when being changed；(3) it is determined with the data block identifier based on the operation code described at least one The corresponding variable quantity of data block changed.Continue exemplary embodiments mentioned above, the data block changed determined Data block identifier is 01,02,03.If the corresponding operation code when being changed at the t1 moment of data block 01 is aaa, terminal is set Standby 11 can determine that the corresponding data of operation code aaa are A1 according to default rule, then data A1 are determined as data block 01 Variable quantity.Similarly, terminal device 11 can determine t1 time datas block 02,03 corresponding variable quantity, terminal device 11 It can also determine 01,02,03 corresponding variable quantity of t2, t3 time data block.

Start time point that can be by the modification of source file in the present embodiment and the end time point, it is standby from file Part server obtain source file the end time point backup file.In this way, can be carried out to file modification process standby Part, the corresponding backup file of modification node during file modification is provided, it is highly practical.

Fig. 6 is the flow of the method for the file backup executed according to the terminal device 11 shown in an exemplary embodiment two Figure；Fig. 7 is the stream of the method for the file backup executed according to the server 12 of the file backup shown in an exemplary embodiment two Cheng Tu；The present embodiment utilizes the above method that the embodiment of the present disclosure provides, and the time point being deleted with source file is in determining knot It is illustrated for before beam time point, as shown in Figures 6 and 7, the method for this document backup includes the following steps S601~S6011 and S701~S707：

In step s 601, the first backup file of the source file is determined.

In step S602, the first backup file is sent to the server of the file backup.

In step S603, memory space corresponding with source file is created.

In step s 604, at least one data changed between the two neighboring snapshot of the source file are determined Block.

In step s 605, by the corresponding variable quantity of at least one data block changed and modification time It is stored in the memory space.

In step S606, if it is determined that the source file is deleted, it is determined that the source file deleted time point.

In step S607, the time point that the source file is deleted is stored in the memory space.

In step S608, the data update of the server based on file backup is asked, by the variable quantity, the modification The time point that time and the source file are deleted is sent to the server of the file backup.

In step S609, start time point and end time point are determined.

In step S610, sent based on the start time point and the end time point for obtaining the second backup text Server of first instruction of part to the file backup；The second backup file includes the data of the first backup file And modification time is located at the start time point to the variable quantity between the end time point.

In step s 611, the third backup text that the server of the file backup is returned based on first instruction is received Part, the third backup file include the first backup file data and the start time point to the source file quilt The variable quantity between the time point of deletion；The source file deleted time point be located at the start time point with it is described Between end time point.

In step s 701, the first backup file of source file is received.

In step S702, transmission data update request.

In step S703, the variable quantity, the modification time and the source file deleted time point are received.

In step S704, the first instruction for obtaining the second backup file is received；First instruction carries starting Time point and end time point.

In step S705, if the time point that the source file is deleted is located at the start time point and the end Between time point, it is determined that modification time is located at the institute between the time point that the start time point and the source file are deleted Variable quantity is stated, the second variation duration set is obtained.

In step S706, described second is changed sequence and institute of the variable quantity according to modification time in duration set It states the first backup file to merge, obtains third backup file.

In step S707, the third backup file is returned to based on first instruction.

In the present embodiment, S401~S405 in step S601~S605 embodiments as shown in fig. 4 is similar, step S701~S702 is similar to S501~S502 in embodiment shown in fig. 5, and details are not described herein.

In step S606~S608 and step S703, if it is determined that source file (initial source file and initial Source file on the basis of the source file changed) be deleted, it is determined that source file deleted time point, and by source file quilt The time point of deletion is stored in the memory space, and request is updated the data what the server 12 for receiving file backup was sent Afterwards, by the corresponding variable quantity of at least one data block changed preserved in memory space, modification time and The source file deleted time point is sent to the server 12 of the file backup.

In the present embodiment, S407~S408 in step S609~S610 embodiments as shown in fig. 4 is similar, step S704 is similar to the S504 in embodiment shown in fig. 5, and details are not described herein.

In step S705~S707 and step S611, the server 12 of file backup is if it is determined that the source file quilt The time point of deletion is between above-mentioned start time point and point of above-mentioned end time, it is determined that is looked into from database It looks for modification time to be located at the variable quantity between the time point that the start time point and the source file are deleted, obtains the second change Change duration set.The server 12 of file backup is by the variable quantity in the second variation duration set according to the suitable of modification time Sequence is merged with the first backup file, obtains third backup file, and will be based on first instruction by the third Backup file returns to terminal device 11.The server 12 of file backup can also send the deleted time point of source file To terminal device 11, terminal device 11 can also export prompt message, the time point for prompting user's source file deleted.

Continue exemplary embodiments mentioned above, if source file is deleted in time point t2, and carried in the first instruction End time point is t3, then the server 12 of file backup determines that carrying out searching modification time from database is located at the starting Variable quantity between time point and time point t2 obtains the second variation duration set, which includes A1, A2, B1 And the knots modifications such as C1.The server 12 of file backup successively merges A1, C1, A2, B1 and the first backup file, obtains Third backup file.

In the present embodiment, if it is determined that the time deleted in source file for obtaining the end time point of backup file After point, then during obtaining backup file, it can be searched and be become as stop time point using the time point that source file is deleted Change amount improves the speed for obtaining backup file in this way, the range of lookup can be reduced.

Fig. 8 is the flow chart of the method for the file backup executed according to the terminal device 11 shown in an exemplary embodiment, As shown in figure 8, the method for this document backup includes the following steps S801~S803：

In step S801, memory space corresponding with source file is created.

In step S802, at least one data changed between the two neighboring snapshot of the source file are determined Block.

In step S803, by the corresponding variable quantity of at least one data block changed and modification time It is stored in the memory space.

In the present embodiment, source file is stored in a disk space of terminal device 11, establishment it is corresponding with source file Memory space in another disk space of terminal device 11, be used for file backup.For the present embodiment S801~S803 In embodiment it is similar to the embodiment of the above embodiments, details are not described herein.

In the present embodiment, during being backed up to file, the device (such as terminal device 11) of file backup It can first create memory space corresponding with source file, and at least one between the two neighboring snapshot of source file is changed Data block and modification time be stored in the memory space.In this way, during being backed up to source file, can incite somebody to action At least one corresponding variable quantity of the data block changed between two neighboring snapshot is backed up, rather than by source document The corresponding data of each snapshot of part are backed up, and the data redundancy of file backup is considerably reduced, and can improve backup speed Degree.

Determine the 4th backup file of the source file；

The 4th backup file is stored in the memory space.

Determine start time point and end time point；

The time point that the source file is deleted is stored in the memory space.

So far, the above method that the embodiment of the present disclosure provides can be repaiied at least one between two neighboring snapshot The corresponding variable quantity of data block changed is backed up, rather than the corresponding data of each snapshot of source file is carried out standby Part, the data redundancy of file backup is considerably reduced, backup rate can be improved.

Fig. 9 is the flow of the method for the file backup executed according to the terminal device 11 shown in an exemplary embodiment one Figure；The present embodiment utilizes the above method that the embodiment of the present disclosure provides, with how according to start time point input by user and End time point is to be illustrated for condition obtains backup file, as shown in figure 9, the method for this document backup includes Following steps S901~S908：

In step S901, memory space corresponding with source file is created.

In step S902, the 4th backup file of the source file is determined.

In step S903, the 4th backup file is stored in the memory space.

In step S904, at least one data changed between the two neighboring snapshot of the source file are determined Block.

In step S905, by the corresponding variable quantity of at least one data block changed and modification time It is stored in the memory space.

In step S906, start time point and end time point are determined.

In step s 907, determine that modification time is located at the initial time at least one data block changed Point obtains third variation duration set to the variable quantity between the end time point.

In step S908, the third is changed to sequence and institute of the variable quantity according to modification time in duration set It states the 4th backup file to merge, obtains the 5th backup file.

In the present embodiment, the 4th backup file is the primary data of source file, is source file by the number before changing According to.4th backup file is stored in memory space by terminal device 11, can be backed up to the primary data of source file, for Subsequently obtain the backup file for the source file changed.

In the present embodiment, step S904~S906 is similar to the embodiment in above-described embodiment, and details are not described herein.

In the present embodiment, terminal device 11 can be according to start time point and the end time point, from memory space In searched, determine all changes amount of the modification time between the start time point and end time point, obtain Change duration set to third.After obtaining third variation duration set, the variable quantity that the third changes in duration set is pressed It is merged according to the sequence and the 4th backup file of modification time, obtains the 5th backup file.

In one exemplary embodiment, further comprising the steps of after step S904, before step S905：(1) really Determine the corresponding data block identifier of at least one data block changed；(2) at least one data changed are determined Block corresponding operation code when being changed；(3) it is determined with the data block identifier based on the operation code described at least one The corresponding variable quantity of data block changed.Continue exemplary embodiments mentioned above, the data block changed determined Data block identifier is 01,02,03.If the corresponding operation code when being changed at the t1 moment of data block 01 is aaa, terminal is set Standby 11 can determine that the corresponding data of operation code aaa are A1 according to default rule, then data A1 are determined as data block 01 Variable quantity.Similarly, terminal device 11 can determine t1 time datas block 02,03 corresponding variable quantity, terminal device 11 It can also determine 01,02,03 corresponding variable quantity of t2, t3 time data block.

Start time point that can be by the modification of source file in the present embodiment and the end time point, it is empty from storage Between obtain source file the end time point backup file.In this way, can be backed up to file modification process, text is provided The corresponding backup file of modification node, highly practical during part modification.

Figure 10 is the flow of the method for the file backup executed according to the terminal device 11 shown in an exemplary embodiment two Figure.The present embodiment utilizes the above method that the embodiment of the present disclosure provides, and the time point being deleted with source file is in determining end Illustrated for before time point, as shown in Figure 10, the method for this document backup include the following steps S1001~ S1010：

In step S1001, memory space corresponding with source file is created.

In step S1002, the 4th backup file of the source file is determined.

In the step s 1003, the 4th backup file is stored in the memory space.

In step S1004, at least one data changed between the two neighboring snapshot of the source file are determined Block.

In step S1005, when by the corresponding variable quantity of at least one data block changed and modification Between be stored in the memory space.

In step S1006, if it is determined that the source file is deleted, it is determined that the source file deleted time Point.

In step S1007, the time point that the source file is deleted is stored in the memory space.

In step S1008, start time point and end time point are determined.

In step S1009, if it is determined that the source file deleted time point is located at the start time point and institute It states between end time point, it is determined that modification time is located at the start time point at least one data block changed The variable quantity between the time point being deleted with the source file obtains the 4th variation duration set.

In step S1010, by it is described 4th change duration set in the variable quantity according to modification time sequence with The 4th backup file merges, and obtains the 6th backup file.

Step S1001~S1005 in present embodiment is similar to step S901~S905 in embodiment illustrated in fig. 9, Step S1006~S1007 is similar to step S606~S607 in embodiment illustrated in fig. 6, implements shown in step S1008 and Fig. 9 Step S906 in example is similar, and details are not described herein.

In the present embodiment, if terminal device 11

Determine the source file deleted time point be located at above-mentioned start time point and above-mentioned end time point it Between, it is determined that carry out searching from memory space modification time be located at the start time point and the source file it is deleted when Between put between variable quantity, obtain the 4th variation duration set, and by it is described 4th change duration set in the variable quantity according to The sequence of modification time is merged with the 4th backup file, obtains the 6th backup file.

Figure 11 A are a kind of block diagrams of the device of file backup shown according to an exemplary embodiment, as shown in Figure 11 A, The device 110 of file backup includes：

First creation module 111 is configured as creating memory space corresponding with source file；

First determining module 112, at least one quilt being configured to determine that between the two neighboring snapshot of the source file The data block of modification；

First preserving module 113 is configured as at least one corresponding variable quantity of the data block changed And modification time is stored in the memory space；

First sending module 114 is configured as the data update request of the server based on file backup, by the storage The corresponding variable quantity of at least one data block changed and modification time preserved in space is sent to file The server of backup.

Figure 11 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment, such as Figure 11 B institutes Show, described device 110 further includes：

Second determining module 115 is configured to determine that the first backup file of the source file；

Second sending module 116 is configured as the first backup file being sent to the server of the file backup.

Third determining module 117 is configured to determine that start time point and end time point；

Third sending module 118 is configured as sending for obtaining based on the start time point and the end time point The first of the second backup file is taken to instruct to the server of the file backup；The second backup file includes described first standby The data and modification time of part file are located at the start time point to the variable quantity between the end time point；

First receiving module 119, the server for being configured as receiving the file backup are based on the first instruction return The second backup file.

Figure 12 A are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment, such as Figure 12 A institutes Show, described device 110 further includes：

4th determining module 121 is configured as after determining that the source file is deleted, and determines that the source file is deleted Time point；

Second preserving module 122 is configured as the time point that the source file is deleted being stored in the memory space；

First sending module 114 is additionally configured to the variable quantity, the modification time and the source file Deleted time point is sent to the server of the file backup.

Second receiving module 123, the server for being configured as receiving the file backup are based on the first instruction return Third backup file, the third backup file includes that the data of the first backup file and the start time point arrive The variable quantity between the source file deleted time point；The source file deleted time point is located at the starting Between time point and end time point.

Figure 12 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment, such as Figure 12 B institutes Show, described device 110 further includes：

5th determining module 124 is configured to determine that the corresponding data block mark of at least one data block changed Know；

6th determining module 125 is configured to determine that corresponding when at least one data block changed is changed Operation code；

7th determining module 126, be configured as based on the operation code and the data block identifier determine described at least One corresponding variable quantity of the data block changed.

Figure 13 A are a kind of block diagrams of the server of file backup shown according to an exemplary embodiment, such as Figure 13 A institutes Show, the server 130 of file backup includes：

4th sending module 131 is configured as transmission data update request；

Third receiving module 132 is configured as receiving at least one being changed of update request return based on the data The corresponding variable quantity of data block and modification time.

Figure 13 B are a kind of block diagrams of the server of the file backup shown according to another exemplary embodiment, such as Figure 13 B institutes Show, the server 130 of file backup further includes：

4th receiving module 133 is configured as receiving the first backup file of source file.

5th receiving module 134 is configured as receiving the first instruction for obtaining the second backup file；Described first refers to It enables and carries start time point and end time point；

First acquisition module 135 is configured to determine that modification time is located at the start time point and the end time The variable quantity between point, obtains the first variation duration set；

First merging module 136, when being configured as the variable quantity in the first variation duration set according to modification Between sequence merged with the first backup file, obtain the second backup file；

5th sending module 137 is configured as returning to the second backup file based on first instruction.

Figure 14 is a kind of block diagram of the server of the file backup shown according to another exemplary embodiment.In the present embodiment In, the third receiving module 132 is additionally configured to receive the variable quantity, the modification time and the source file quilt The time point of deletion.

As shown in figure 14, the server 130 of file backup further includes：

Second acquisition module 141 is configured as being located at the start time point at the time point that the source file is deleted After between the end time point, it is determined that modification time be located at that the start time point and the source file be deleted when Between put between the variable quantity, obtain the second variation duration set；

Second merging module 142, when being configured as the variable quantity in the second variation duration set according to modification Between sequence merged with the first backup file, obtain third backup file；

6th sending module 143 is configured as returning to the third backup file based on first instruction.

The embodiment of the present disclosure also provides a kind of system of file backup, which includes：The device of the file backup 110 with the server 130 of the file backup.

Figure 15 A are a kind of block diagrams of the device of file backup shown according to an exemplary embodiment, as shown in fig. 15, The device 150 of file backup includes：

Second creation module 151 is configured as creating memory space corresponding with source file；

8th determining module 152, at least one quilt being configured to determine that between the two neighboring snapshot of the source file The data block of modification；

Third preserving module 153 is configured as at least one corresponding variable quantity of the data block changed And modification time is stored in the memory space.

Figure 15 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment, such as Figure 15 B institutes Show, the device 150 of file backup further includes：

9th determining module 154 is configured to determine that the 4th backup file of the source file；

4th preserving module 155 is configured as the 4th backup file being stored in the memory space.

Tenth determining module 156 is configured to determine that start time point and end time point；

Third acquisition module 157 is configured to determine that at least one data block changed that modification time is located at The start time point obtains third variation duration set to the variable quantity between the end time point；

Third merging module 158, when being configured as the variable quantity in third variation duration set according to modification Between sequence merged with the 4th backup file, obtain the 5th backup file.

Figure 16 A are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment, such as Figure 16 A institutes Show, the device 150 of file backup further includes：

11st determining module 161 is configured as after determining that the source file is deleted, determines that the source file is deleted The time point removed；

5th preserving module 162 is configured as the time point that the source file is deleted being stored in the memory space.

4th acquisition module 163 is configured as when determining that the source file deleted time point is located at the starting Between put between end time point after, determine at least one data block changed that modification time is located at described rise The variable quantity between the time point that time point beginning and the source file are deleted obtains the 4th variation duration set；

4th merging module 164, when being configured as the variable quantity in the 4th variation duration set according to modification Between sequence merged with the 4th backup file, obtain the 6th backup file.

Figure 16 B are a kind of block diagrams of the device of the file backup shown according to another exemplary embodiment, such as Figure 16 B institutes Show, the device 150 of file backup further includes：

12nd determining module 165 is configured to determine that the corresponding data block of at least one data block changed Mark；

13rd determining module 166 is configured to determine that when at least one data block changed is changed and corresponds to Operation code；

14th determining module 167, be configured as based on the operation code and the data block identifier determine described in extremely A few corresponding variable quantity of the data block changed.

About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method Embodiment in be described in detail, explanation will be not set forth in detail herein.

Figure 17 is a kind of block diagram of the device of file backup shown according to an exemplary embodiment.For example, device 1700 It may be provided as a server.Referring to Fig.1 7, device 1700 includes processing component 1722, further comprises one or more Processor, and by the memory resource representated by memory 1732, it can be by the finger of the execution of processing component 1722 for storing It enables, such as application program.The application program stored in memory 1732 may include each one or more correspondence In the module of one group of instruction.In addition, processing component 1722 is configured as executing instruction, it is above-mentioned for controlling file backup to execute Method.

Device 1700 can also include that a power supply module 1726 be configured as the power management of executive device 1700, one Wired or wireless network interface 1750 is configured as device 1700 being connected to network and input and output (I/O) interface 1758.Device 1700 can be operated based on the operating system for being stored in memory 1732, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or similar.

In the exemplary embodiment, it includes the non-transitorycomputer readable storage medium instructed, example to additionally provide a kind of Such as include the memory 1732 of instruction, above-metioned instruction can be executed by the processing component 1722 of device 1700 to complete the above method. For example, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, Floppy disk and optical data storage devices etc..

Figure 18 is a kind of block diagram of the device of file backup shown according to an exemplary embodiment.For example, device 1800 Can be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, Body-building equipment, personal digital assistant etc..

Referring to Fig.1 8, device 1800 may include following one or more components：Processing component 1802, memory 1804, Power supply module 1806, multimedia component 1808, audio component 1810, the interface 1812 of input/output (I/O), sensor module 1814 and communication component 1816.

The integrated operation of 1802 usual control device 1800 of processing component, such as with display, call, data communication, Camera operation and record operate associated operation.Processing element 1802 may include one or more processors 1820 to execute Instruction, to perform all or part of the steps of the methods described above.In addition, processing component 1802 may include one or more moulds Block, convenient for the interaction between processing component 1802 and other assemblies.For example, processing component 1802 may include multi-media module, To facilitate the interaction between multimedia component 1808 and processing component 1802.

Memory 1804 is configured as storing various types of data to support the operation in equipment 1800.These data Example includes the instruction for any application program or method that are operated on device 1800, contact data, telephone book data, Message, picture, video etc..Memory 1804 can by any kind of volatibility or non-volatile memory device or they Combination is realized, such as static RAM (SRAM), electrically erasable programmable read-only memory (EEPROM), it is erasable can Program read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory Reservoir, disk or CD.

Electric power assembly 1806 provides electric power for the various assemblies of device 1800.Electric power assembly 1806 may include power management System, one or more power supplys and other generated with for device 1800, management and the associated component of distribution electric power.

Multimedia component 1808 is included in the screen of one output interface of offer between described device 1800 and user. In some embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, Screen may be implemented as touch screen, to receive input signal from the user.Touch panel includes that one or more touch passes Sensor is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding is dynamic The boundary of work, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more Media component 1808 includes a front camera and/or rear camera.When equipment 1800 is in operation mode, mould is such as shot When formula or video mode, front camera and/or rear camera can receive external multi-medium data.Each preposition camera shooting Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.

Audio component 1810 is configured as output and/or input audio signal.For example, audio component 1810 includes a wheat Gram wind (MIC), when device 1800 is in operation mode, when such as call model, logging mode and speech recognition mode, microphone quilt It is configured to receive external audio signal.The received audio signal can be further stored in memory 1804 or via communication Component 1816 is sent.In some embodiments, audio component 1810 further includes a loud speaker, is used for exports audio signal.

I/O interfaces 1812 provide interface, above-mentioned peripheral interface module between processing component 1802 and peripheral interface module Can be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and Locking press button.

Sensor module 1814 includes one or more sensors, and the state for providing various aspects for device 1800 is commented Estimate.For example, sensor module 1814 can detect the state that opens/closes of equipment 1800, the relative positioning of component, such as institute The display and keypad that component is device 1800 are stated, sensor module 1814 can be with detection device 1800 or device 1,800 1 The position change of a component, the existence or non-existence that user contacts with device 1800,1800 orientation of device or acceleration/deceleration and dress Set 1800 temperature change.Sensor module 1814 may include proximity sensor, be configured in not any physics It is detected the presence of nearby objects when contact.Sensor module 1814 can also include optical sensor, as CMOS or ccd image are sensed Device, for being used in imaging applications.In some embodiments, which can also include acceleration sensing Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.

Communication component 1816 is configured to facilitate the communication of wired or wireless way between device 1800 and other equipment.Dress The wireless network based on communication standard, such as WiFi can be accessed by setting 1800,2G or 3G or combination thereof.It is exemplary at one In embodiment, communication component 1816 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel Information.In one exemplary embodiment, the communication component 1816 further includes near-field communication (NFC) module, to promote short distance Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module (UWB) technology, bluetooth (BT) technology and other technologies are realized.

In the exemplary embodiment, device 1800 can be by one or more application application-specific integrated circuit (ASIC), number Signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.

In the exemplary embodiment, it includes the non-transitorycomputer readable storage medium instructed, example to additionally provide a kind of Such as include the memory 1804 of instruction, above-metioned instruction can be executed by the processor 1820 of device 1800 to complete the above method.Example Such as, the non-transitorycomputer readable storage medium can be ROM, it is random access memory (RAM), CD-ROM, tape, soft Disk and optical data storage devices etc..

Those skilled in the art will readily occur to its of the disclosure after considering specification and putting into practice disclosure disclosed herein Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or Person's adaptive change follows the general principles of this disclosure and includes the undocumented common knowledge in the art of the disclosure Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following Claim is pointed out.

It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.

Claims

1. a kind of method of file backup, which is characterized in that the method includes：

Create memory space corresponding with source file；

It is empty that the corresponding variable quantity of at least one data block changed and modification time are stored in the storage Between；

The data update of server based on file backup is asked, and described at least one is repaiied what is preserved in the memory space The corresponding variable quantity of data block and modification time that change are sent to the server of file backup.

2. according to the method described in claim 1, it is characterized in that, between the two neighboring snapshot of the determination source file At least one data block changed before, further include：

Determine the first backup file of the source file；

The first backup file is sent to the server of the file backup.

3. according to the method described in claim 2, it is characterized in that, it is described will be preserved in the memory space described at least one The corresponding variable quantity of a data block changed and modification time are sent to after the server of file backup, are also wrapped It includes：

Determine start time point and end time point；

The first instruction for obtaining the second backup file is sent to institute based on the start time point and the end time point State the server of file backup；The second backup file includes that the data of the first backup file and modification time are located at The start time point is to the variable quantity between the end time point；

4. according to the method described in claim 3, it is characterized in that, it is described will be preserved in the memory space described at least one The corresponding variable quantity of a data block changed and modification time are sent to before the server of file backup, are also wrapped It includes：

The time point that the source file is deleted is stored in the memory space；

It is described by the corresponding variable quantity of at least one data block changed preserved in the memory space and Modification time is sent to the server of file backup, including：

The time point that the variable quantity, the modification time and the source file are deleted is sent to the file backup Server.

5. according to the method described in claim 4, it is characterized in that, described be based on the start time point and the end time After point sends the first instruction for obtaining the second backup file to the server of the file backup, further include：

Receive the third backup file that the server of the file backup is returned based on first instruction, the third backup text Part include the first backup file data and the start time point to the source file be deleted time point between The variable quantity；The source file deleted time point is between the start time point and end time point.

6. according to the method described in claim 1, it is characterized in that, it is described by least one data block changed respectively Corresponding first variable quantity and modification time are stored in before the memory space, further include：

Determine that at least one data block changed is corresponding with the data block identifier based on the operation code Variable quantity.

7. a kind of method of file backup, which is characterized in that the method includes：

Transmission data update request；

Receive based on the data update request return the corresponding variable quantity of at least one data block changed and Modification time.

8. the method according to the description of claim 7 is characterized in that update request returns extremely based on the data for the reception Before few corresponding variable quantity of a data block changed and modification time, further include：

Receive the first backup file of source file.

9. according to the method described in claim 8, it is characterized in that, the reception updates request return extremely based on the data After few corresponding variable quantity of a data block changed and modification time, further include：

Receive the first instruction for obtaining the second backup file；First instruction carries start time point and end time Point；

It determines the variable quantity of the modification time between the start time point and end time point, obtains the first change Change duration set；

By described first change the variable quantity in duration set according to modification time sequence and the first backup file into Row merges, and obtains the second backup file；

The second backup file is returned based on first instruction.

10. according to the method described in claim 9, it is characterized in that, the reception updates what request returned based on the data The corresponding variable quantity of at least one data block changed and modification time, including：

11. according to the method described in claim 10, it is characterized in that, described receive for obtaining the first of the second backup file After instruction, further include：

If the source file deleted time point is between the start time point and end time point, it is determined that Modification time is located at the variable quantity between the time point that the start time point and the source file are deleted, and obtains second Change duration set；

By described second change the variable quantity in duration set according to modification time sequence and the first backup file into Row merges, and obtains third backup file；

The third backup file is returned based on first instruction.

12. a kind of method of file backup, which is characterized in that the method includes：

Create memory space corresponding with source file；

It is empty that the corresponding variable quantity of at least one data block changed and modification time are stored in the storage Between.

13. according to the method for claim 12, which is characterized in that the two neighboring snapshot of the determination source file it Between at least one data block changed before, further include：

Determine the 4th backup file of the source file；

The 4th backup file is stored in the memory space.

14. according to the method for claim 13, which is characterized in that described that at least one data block changed is each Self-corresponding variable quantity and modification time are stored in after the memory space, further include：

Determine start time point and end time point；

Determine that modification time is located at the start time point to the end time at least one data block changed The variable quantity between point obtains third variation duration set；

By the third change the variable quantity in duration set according to modification time sequence and the 4th backup file into Row merges, and obtains the 5th backup file.

15. according to the method for claim 14, which is characterized in that the 4th backup file of the determination source file it Afterwards, further include：

The time point that the source file is deleted is stored in the memory space.

16. according to the method for claim 15, which is characterized in that the determining start time point and end time point it Afterwards, further include：

If it is determined that the source file deleted time point between the start time point and end time point, then It determines at least one data block changed that modification time is located at the start time point to be deleted with the source file Time point between the variable quantity, obtain the 4th variation duration set；

By the described 4th change the variable quantity in duration set according to modification time sequence and the 4th backup file into Row merges, and obtains the 6th backup file.

17. according to the method for claim 12, which is characterized in that described that at least one data block changed is each Self-corresponding variable quantity and modification time are stored in before the memory space, further include：

18. a kind of device of file backup, which is characterized in that described device includes：

First determining module, at least one number changed being configured to determine that between the two neighboring snapshot of the source file According to block；

First preserving module is configured as the corresponding variable quantity of at least one data block changed and modification Time is stored in the memory space；

First sending module is configured as the data update request of the server based on file backup, will be in the memory space The corresponding variable quantity of at least one data block changed and modification time preserved is sent to file backup Server.

19. device according to claim 18, which is characterized in that described device further includes：

20. device according to claim 19, which is characterized in that described device further includes：

Third sending module is configured as sending with the end time point based on the start time point standby for obtaining second Server of first instruction of part file to the file backup；The second backup file includes the first backup file Data and modification time are located at the start time point to the variable quantity between the end time point；

First receiving module is configured as receiving the server of the file backup is returned based on first instruction described the Two backup files.

21. device according to claim 20, which is characterized in that described device further includes：

4th determining module is configured as after determining that the source file is deleted, and determines the source file deleted time Point；

First sending module is additionally configured to the variable quantity, the modification time and the source file being deleted Time point be sent to the server of the file backup.

22. device according to claim 21, which is characterized in that described device further includes：

Second receiving module, the server for being configured as receiving the file backup are standby based on the third of the first instruction return Part file, the third backup file include the first backup file data and the start time point to the source document The variable quantity between part deleted time point；The source file deleted time point be located at the start time point and Between the end time point.

23. device according to claim 18, which is characterized in that described device further includes：

6th determining module is configured to determine that corresponding operation generation when at least one data block changed is changed Code；

7th determining module is configured as determining described at least one repaiied based on the operation code and the data block identifier The corresponding variable quantity of data block changed.

24. a kind of server of file backup, which is characterized in that the server includes：

4th sending module is configured as transmission data update request；

Third receiving module is configured as receiving at least one data block changed that update request returns based on the data Corresponding variable quantity and modification time.

25. server according to claim 24, which is characterized in that the server further includes：

26. server according to claim 25, which is characterized in that the server further includes：

5th receiving module is configured as receiving the first instruction for obtaining the second backup file；First instruction carries Start time point and end time point；

First acquisition module is configured to determine that modification time between the start time point and end time point The variable quantity obtains the first variation duration set；

First merging module is configured as the sequence for changing the variable quantity in duration set according to modification time by described first It is merged with the first backup file, obtains the second backup file；

27. server according to claim 26, which is characterized in that the third receiving module is additionally configured to receive The variable quantity, the modification time and the source file deleted time point.

28. server according to claim 27, which is characterized in that the server further includes：

Second acquisition module is configured as being located at the start time point and the knot at the time point that the source file is deleted After between beam time point, it is determined that modification time was located between the time point that the start time point and the source file are deleted The variable quantity, obtain the second variation duration set；

Second merging module is configured as the sequence for changing the variable quantity in duration set according to modification time by described second It is merged with the first backup file, obtains third backup file；

29. a kind of device of file backup, which is characterized in that described device includes：

8th determining module, at least one number changed being configured to determine that between the two neighboring snapshot of the source file According to block；

Third preserving module is configured as the corresponding variable quantity of at least one data block changed and modification Time is stored in the memory space.

30. device according to claim 29, which is characterized in that described device further includes：

31. device according to claim 30, which is characterized in that described device further includes：

Third acquisition module is configured to determine that at least one data block changed that modification time is located at the starting Time point to the variable quantity between the end time point, obtains third variation duration set；

Third merging module is configured as the sequence that the third is changed the variable quantity in duration set according to modification time It is merged with the 4th backup file, obtains the 5th backup file.

32. device according to claim 31, which is characterized in that described device further includes：

11st determining module, be configured as determine the source file be deleted after, determine the source file be deleted when Between point；

33. device according to claim 32, which is characterized in that described device further includes：

4th acquisition module is configured as determining that the source file deleted time point is located at the start time point and institute After stating between end time point, determine that modification time is located at the start time point at least one data block changed The variable quantity between the time point being deleted with the source file obtains the 4th variation duration set；

4th merging module is configured as the sequence for changing the variable quantity in duration set according to modification time by the described 4th It is merged with the 4th backup file, obtains the 6th backup file.

34. device according to claim 33, which is characterized in that described device further includes：

12nd determining module is configured to determine that the corresponding data block identifier of at least one data block changed；

13rd determining module is configured to determine that corresponding operation generation when at least one data block changed is changed Code；

14th determining module is configured as determining at least one quilt based on the operation code and the data block identifier The corresponding variable quantity of data block of modification.

35. a kind of system of file backup, which is characterized in that the system comprises：Claim 18~23 any one of them The server of the device and claim 24~28 any one of them file backup of file backup.

36. a kind of device of file backup, which is characterized in that described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Create memory space corresponding with source file；

37. a kind of server of file backup, which is characterized in that the server includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Transmission data update request；

38. a kind of device of file backup, which is characterized in that described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Create memory space corresponding with source file；

39. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program Following steps are realized when being executed by processor：

Create memory space corresponding with source file；

40. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program Following steps are realized when being executed by processor：

Transmission data update request；

41. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program Following steps are realized when being executed by processor：

Create memory space corresponding with source file；