WO2016183906A1

WO2016183906A1 - Storage space allocation method and apparatus

Info

Publication number: WO2016183906A1
Application number: PCT/CN2015/082899
Authority: WO
Inventors: 刘东海; 吕楠; 顿超钢; 周威; 许行; 庞敏
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-05-21
Filing date: 2015-06-30
Publication date: 2016-11-24
Also published as: CN105653467A

Abstract

A storage space allocation method and apparatus. The method comprises: receiving a space occupation request sent by a space requesting party (S201); in a case in which a pre-allocated space capacity is insufficient, determining whether a space capacity of an expansion storage device is sufficient (S202); and if the space capacity of the expansion storage device is sufficient, allocating storage space in the expansion storage device to the space requesting party (S205). Accordingly, in the method and the apparatus, in a case in which a pre-allocated space capacity is insufficient, if a space capacity of an expansion storage device is sufficient, storage space in the expansion storage device can still be allocated to a system for use, and therefore the possibility of poor use experience of a user due to insufficiency of storage space can be reduced.

Description

Storage space allocation method and device

The present application claims priority to Chinese Patent Application No. 201510262396.1, filed on May 21, 2015, the entire disclosure of which is hereby incorporated by reference. in.

Technical field

The present application relates to the field of electronic information, and in particular, to a storage space allocation method and apparatus.

Background technique

At present, most electronic devices include storage space for data generated during the operation of the system for storing electronic devices and data input by the user (such as installation packages, pictures or videos, etc.).

Generally, a fixed-capacity partition is allocated in advance to store different types of data. For example, the storage space shown in FIG. 1 is divided into partitions such as /system, /cache, and /data, which are used to store system data, cache data, and Business data, etc.

When the system applies for storage space, if the corresponding storage space is not enough, the user will be prompted to store insufficient space and cannot store data, which will undoubtedly lead to poor user experience.

Summary of the invention

The present application provides a method and an apparatus for allocating a storage space, and aims to solve the problem of poor user experience due to insufficient storage space.

In order to achieve the above object, the present application provides the following technical solutions:

A storage space allocation method includes:

Receiving a space occupation request, where the space occupation request is sent by a space requester, the space requester is any one of the dual systems, and the dual system includes a security domain system and a non-security domain system;

If the capacity of the pre-allocated storage space is insufficient, determining whether the capacity of the storage space in the extended storage device is sufficient, and if the capacity of the storage space in the extended storage device is sufficient, assigning the space to the space requester Expand the storage space in the storage device.

Optionally, the allocating a storage space package in the extended storage device to the space requester include:

In the case that any one of the systems is the secure domain system, the encrypted storage space in the extended storage device is allocated to the secure domain system.

Optionally, the process of generating the encrypted storage space in the extended storage device includes at least one of the following:

Encrypting the extended storage device using a key set in the system;

Encrypting the extended storage device with a password entered by the user;

Encrypting a storage space allocated to the secure domain system in the extended storage device by using a key preset in the system;

The storage space allocated to the secure domain system in the extended storage device is encrypted using a password entered by the user.

Optionally, the determining whether the capacity of the storage space in the extended storage device is sufficient includes:

When the extended storage device is detected, determining whether the capacity of the storage space in the extended storage device is sufficient;

The method further includes:

In the event that the extended storage device is not detected, the user is prompted to insert the extended storage device.

Optionally, it also includes:

If the space capacity in the extended storage device is insufficient, the user is prompted to delete the data in the extended storage device until the space capacity in the extended storage device is sufficient.

A storage space allocation device includes:

a receiving module, configured to receive a space occupation request, where the space occupation request is sent by a space requester, where the space requester is any one of the dual systems, and the dual system includes a security domain system and a non-security domain system;

a storage space allocation module, configured to determine, if the capacity of the pre-allocated storage space is insufficient, whether the capacity of the storage space in the extended storage device is sufficient, if the capacity of the storage space in the extended storage device is sufficient, The space requester allocates storage space in the extended storage device.

Optionally, the storing, by the storage space allocation module, the storage space in the extended storage device to the space requester includes:

The storage space allocation module is specifically configured to: when the any one of the systems is the security domain system, allocate the encrypted storage space in the extended storage device to the security domain system.

Optionally, it also includes:

And an encryption module, configured to generate the encrypted storage space in the extended storage device, where the process of generating the encrypted storage space in the extended storage device includes at least one of the following:

Encrypting the extended storage device using a key set in the system;

Encrypting the extended storage device with a password entered by the user;

Optionally, the storage space allocation module is configured to determine whether the capacity of the storage space in the extended storage device is sufficient to include:

The storage space allocation module is specifically configured to: determine, when the extended storage device is detected, whether the capacity of the storage space in the extended storage device is sufficient;

The storage space allocation module is further configured to:

Optionally, the storage space allocation module is further configured to:

The method and device of the present application receive a space occupation request sent by a space requester, and determine whether the space capacity in the extended storage device is sufficient if the pre-allocated space capacity is insufficient, if the space capacity in the extended storage device is sufficient , the space requestor is allocated storage space in the extended storage device. It can be seen that, in the method and apparatus described in the present application, if the pre-allocated space capacity is insufficient, if the space capacity in the extended storage device is sufficient, the storage space in the extended storage device can still be allocated to the system for use, thereby being able to reduce Possibility of poor user experience due to insufficient storage space.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and other drawings can be obtained according to the drawings without any creative work for those skilled in the art.

1 is a schematic diagram of allocation of a storage space;

2 is a flowchart of a storage space allocation method according to an embodiment of the present application;

3 is a schematic diagram of allocation of storage space in a dual system;

4 is a flowchart of still another storage space allocation method according to an embodiment of the present application;

FIG. 5 is a flowchart of still another storage space allocation method according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a storage space allocation apparatus according to an embodiment of the present application.

detailed description

The embodiment of the present application discloses a storage space allocation method and device, which can be used in an electronic device, and the purpose is to automatically seek to expand the storage space when the storage space of the electronic device itself is insufficient, thereby improving the user experience. .

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

A storage space allocation method disclosed in the embodiment of the present application, as shown in FIG. 2, includes the following steps:

S201: Receive a space occupation request;

The space occupation request may be sent by the space requester. For example, the space requester may be a system in the electronic device, an application in the electronic device, or the like.

S202: determining whether the capacity of the pre-allocated storage space is sufficient, if yes, executing S203, if not, executing S204;

In an electronic device, a fixed storage space is usually allocated in advance for different types of data. For example, as shown in FIG. 1, a fixed storage space is allocated for system data, cache data, and the like. When a system or an application generates some type of data, Store by default into storage space pre-allocated for such data, for example, sound The music player downloads the audio data, and by default this audio data is stored in the /data partition in Figure 1.

S203: Allocating pre-allocated storage space to the space requester;

S204: determining whether the capacity of the storage space in the extended storage device is sufficient, if yes, executing S205, if not, prompting the user that the storage space has insufficient capacity;

In this embodiment, the extended storage device may be preset in the electronic device, for example, a secure digital memory card (SD card) is pre-inserted into the electronic device.

S205: Allocate storage space in the extended storage device to the space requester.

It can be seen from the above steps that, in the case that the capacity of the pre-allocated storage space is insufficient, the method described in this embodiment can actively seek to expand the storage space in the storage device, if there is sufficient storage space in the extended storage device. The storage space in the extended storage device can be allocated to the space requester. Only when the extended storage device space is insufficient, the user is reminded that the storage space is insufficient, and the existing way of focusing only on the pre-allocated storage space. In comparison, it is possible to increase the possibility that the space occupation request is allowed, thereby improving the user experience.

Another storage space allocation method disclosed in the embodiment of the present application can be applied to an electronic device having dual systems. The so-called dual system, that is, the electronic device has two systems, wherein one system is a PPD system (personal private domain). The other system is the SED system (secure enterprise domain). Among them, the SED system has high security requirements, and can also be called a security domain system. The PPD system is a general system and can be called a non-security domain system.

The storage space pre-allocated for the dual system is as shown in FIG. 3: the PPD system includes a storage space for storing different types of data, wherein the /data partition reserves a part of the fixed storage space for the SED security domain system, and this part of the space is It is divided into /system, /cache and /data partitions, which are used to store different types of data generated by the SED security domain system. The /system, /cache and /data partitions of the SED security domain system are fixed. Some spaces must comply with the relevant security policy specifications of the SED security domain system.

As shown in FIG. 4, the method disclosed in this embodiment includes the following steps:

S401: Receive a space occupation request sent by any one of the dual systems;

That is to say, the space requester is a secure domain system or a non-secure domain system.

S402: determining whether the capacity of the storage space pre-allocated by the space requester is sufficient, and if so, S403 is performed, if no, executing S404;

S403: Allocating pre-allocated storage space to the space requester;

S404: detecting whether there is an SD card, if yes, executing S405, if not, executing S406;

S405: determining whether the capacity of the storage space in the SD card is sufficient, if yes, executing S407, if not, executing S408;

From a practical point of view, in general, for the storage space allocated for any one system, only the /data partition is used to store the data of the service type, while the other partitions have relatively small space capacity relative to the /data partition, so in practice In an application, the storage of data usually occurs in the /data partition.

S406: prompt the user to insert the SD card;

S407: Allocating storage space in the SD card to the space requester;

S408: The user is prompted to delete the data in the SD card. After the operation of deleting the data by the user is completed, the process returns to S405.

The purpose of S408 is to prompt the user to delete the data in the SD card to empty the storage space when the storage space in the SD card is not enough. After the operation of deleting the data by the user is completed, the process returns to S405 automatically. The response process of the space request is not interrupted, so that the user can trigger the system to issue a space request again after deleting the data in the SD card, thereby further improving the user experience.

For example, when the user runs the music player to download audio data, the system issues a space occupation request. If the remaining space capacity of the pre-assigned /data partition is insufficient to store the audio data, it is determined whether the remaining space in the SD card is sufficient to store the audio data. If the remaining space in the SD card is not enough to store the audio data, the user is prompted to delete the data in the SD card. When the user completes the operation of deleting the data in the SD card according to the prompt, it is determined whether the remaining space in the SD card is sufficient. This audio data is stored and executed repeatedly. It is no longer necessary for the user to start executing the audio data again after completing the data deletion, and the process of applying for the storage space can be continued.

It can be seen that the method described in this embodiment can not only improve the success rate of the space occupation application, but also further improve the user experience in the space application process.

Moreover, because the cost of the SD card is low, the implementation cost of the method described in this embodiment is controllable and easy to be practically applied.

In the above dual-system electronic device, in the case where the space requester is a secure domain system, if the storage space in the extended storage device is allocated to the secure domain system, it is necessary to consider the security of the data stored in the extended storage device. Therefore, the embodiment of the present application discloses another storage space allocation method, which is different from the method shown in FIG. 4 in that the method in this embodiment can effectively improve the security of the security domain data in the SD card.

As shown in FIG. 5, the method in this embodiment includes the following steps:

S501: Receive a space occupation request sent by any one of the dual systems;

S502: Determine whether the space requester is a security domain system or a non-security domain system. If it is a security domain system, execute S503. If it is a non-security domain system, perform the steps of S402 and subsequent steps according to the process shown in FIG. 4;

S503: determining whether the capacity of the storage space pre-allocated by the security domain system is sufficient, if yes, executing S504, if not, executing S505;

S504: Allocating pre-allocated storage space to the security domain system;

S505: detecting whether there is an SD card, if yes, executing S506, if not, executing S507;

S506: determining whether the capacity of the storage space in the SD card is sufficient, if yes, executing S508, if not, executing S509;

S507: prompting the user to insert an SD card;

S508: Allocating the encrypted storage space in the SD card to the security domain system;

Specifically, the specific implementation manner of encrypting the storage space in the SD card may be at least one of the following: encrypting the SD card by using a key preset in the system, encrypting the SD card by using a password input by the user, and using the system. The pre-set key encrypts the storage space allocated to the secure domain system in the SD card, and encrypts the storage space allocated to the secure domain system in the SD card by using the password input by the user. That is to say, the key can be pre-stored in the system or input by the user. The encrypted object can be the entire storage space of the SD card, or only the storage space allocated to the security domain system, and can also be used for the SD card. The entire storage space is encrypted, and the storage space allocated to the secure domain system is also encrypted, and the two encryptions use different keys to improve data security.

If encrypted with a pre-stored key in the system, the encrypted storage space can only be accessed in the electronic device in which the key is stored.

S509: prompting the user to delete the data in the SD card, after the user deletes the data, the operation is completed. Return to execution S506.

The method described in this embodiment not only extends the storage space of the dual system to the SD card, but also encrypts the SD card space allocated to the secure domain system when the SD card space is applied. Therefore, On the basis of improving the user experience, the security of the security domain data is further improved.

Corresponding to the foregoing method embodiment, the embodiment of the present application further discloses a storage space allocation device, as shown in FIG. 6, comprising:

The receiving module 601 is configured to receive a space occupation request, where the space occupation request is sent by a space requester;

a storage space allocation module 602, configured to determine, if the capacity of the pre-allocated storage space is insufficient, whether the capacity of the storage space in the extended storage device is sufficient, if the capacity of the storage space in the extended storage device is sufficient, The space requester allocates a storage space in the extended storage device.

Specifically, the storage space allocation module determines whether the capacity of the storage space in the extended storage device is sufficient: if the extended storage device is detected, determining whether the capacity of the storage space in the extended storage device is sufficient; In this premise, the storage space allocation module may be further configured to prompt the user to insert the extended storage device if the extended storage device is not detected; and if the space capacity in the extended storage device is insufficient, prompting The user deletes data in the extended storage device until the amount of space in the extended storage device is sufficient.

Further, the device described in this embodiment may be applied to an electronic device having the dual system shown in FIG. 3. In a scenario of a dual system, specifically, the specific implementation manner of the receiving module receiving the space occupation request may be : Receiving a space occupation request sent by any one of the dual systems, the dual system including a security domain system and a non-security domain system.

In order to ensure the confidentiality of the security domain system, the specific implementation manner of the storage space allocation module to allocate the storage space in the extended storage device to the space requesting party may be: In the case of the system, the encrypted storage space in the extended storage device is allocated to the secure domain system.

Further, the device described in this embodiment may further include:

The encryption module 603 is configured to generate an encrypted storage space in the extended storage device.

The process of generating the encrypted storage space in the extended storage device includes at least one of the following:

Encrypting the extended storage device using a key set in the system;

Encrypting the extended storage device with a password entered by the user;

When the device is applied to an electronic device, the storage storage space can be allocated to the system as much as possible, thereby reducing the possibility of poor user experience due to insufficient local storage space and improving the user experience.

The functions described in the methods of the embodiments of the present application, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computing device readable storage medium. Based on such understanding, a portion of the embodiments of the present application that contributes to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a The computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts of the respective embodiments may be referred to each other. The above description of the disclosed embodiments enables those skilled in the art to make or use the application. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application is not limited to the embodiments shown herein, but is to be accorded the broadest scope of the principles and novel features disclosed herein.

Claims

A storage space allocation method, comprising:

Receiving a space occupation request, where the space occupation request is sent by a space requester, the space requester is any one of the dual systems, and the dual system includes a security domain system and a non-security domain system;

If the capacity of the pre-allocated storage space is insufficient, determining whether the capacity of the storage space in the extended storage device is sufficient, and if the capacity of the storage space in the extended storage device is sufficient, assigning the space to the space requester Expand the storage space in the storage device.
The method of claim 1 wherein

The allocating the storage space in the extended storage device to the space requester includes:

In the case that any one of the systems is the secure domain system, the encrypted storage space in the extended storage device is allocated to the secure domain system.
The method according to claim 2, wherein the process of generating the encrypted storage space in the extended storage device comprises at least one of the following:

Encrypting the extended storage device using a key set in the system;

Encrypting the extended storage device with a password entered by the user;

Encrypting a storage space allocated to the secure domain system in the extended storage device by using a key preset in the system;

The storage space allocated to the secure domain system in the extended storage device is encrypted using a password entered by the user.
The method according to any one of claims 1 to 3, wherein the determining whether the capacity of the storage space in the extended storage device is sufficient comprises:

When the extended storage device is detected, determining whether the capacity of the storage space in the extended storage device is sufficient;

The method further includes:

In the event that the extended storage device is not detected, the user is prompted to insert the extended storage device.
The method according to any one of claims 1 to 3, further comprising:

If the space capacity in the extended storage device is insufficient, prompting the user to delete the extended storage The data in the device until the amount of space in the extended storage device is sufficient.
A storage space allocation device, comprising:

a receiving module, configured to receive a space occupation request, where the space occupation request is sent by a space requester, where the space requester is any one of the dual systems, and the dual system includes a security domain system and a non-security domain system;

a storage space allocation module, configured to determine, if the capacity of the pre-allocated storage space is insufficient, whether the capacity of the storage space in the extended storage device is sufficient, if the capacity of the storage space in the extended storage device is sufficient, The space requester allocates storage space in the extended storage device.
The device of claim 6 wherein:

The storage space allocation module is configured to allocate the storage space in the extended storage device to the space requester, including:

The storage space allocation module is specifically configured to: when the any one of the systems is the security domain system, allocate the encrypted storage space in the extended storage device to the security domain system.
The device according to claim 7, further comprising:

And an encryption module, configured to generate the encrypted storage space in the extended storage device, where the process of generating the encrypted storage space in the extended storage device includes at least one of the following:

Encrypting the extended storage device using a key set in the system;

Encrypting the extended storage device with a password entered by the user;

Encrypting a storage space allocated to the secure domain system in the extended storage device by using a key preset in the system;

The storage space allocated to the secure domain system in the extended storage device is encrypted using a password entered by the user.
The device according to any one of claims 6 to 8, wherein the storage space allocation module is configured to determine whether the capacity of the storage space in the extended storage device is sufficient to include:

The storage space allocation module is specifically configured to: determine, when the extended storage device is detected, whether the capacity of the storage space in the extended storage device is sufficient;

The storage space allocation module is further configured to:

In the event that the extended storage device is not detected, the user is prompted to insert the extended storage device.
The device according to any one of claims 6 to 8, wherein the storage space allocation module is further configured to:

If the space capacity in the extended storage device is insufficient, the user is prompted to delete the data in the extended storage device until the space capacity in the extended storage device is sufficient.