CN104750579A - Method and device for manufacturing memory mirroring - Google Patents

Abstract

Embodiments of the present invention provide a method and device for making a memory mirror image, the method comprising: the terminal device judges the state of the terminal device, and if the terminal device is in the state of making a memory mirror image, the terminal device, before the first application file starts, In the triggered opening mode of the database service, the memory mirroring process is performed, and the terminal device starts the first application file after the memory mirroring is completed. The method and device for making a memory image provided by the embodiments of the present invention can improve the reliability of the system.

Description

Method and device for making memory image

technical field

Embodiments of the present invention relate to communication technology, and in particular to a method and device for making a memory image.

Background technique

Memory mirroring is to make two copies of memory data, which are placed in the main memory and the mirror memory respectively, so as to prevent permanent data loss due to memory failure. Make a memory image of the memory state, and perform on-site recovery according to the memory image, so as to achieve the purpose of fast booting.

In the prior art, when the memory mirroring technology is used to achieve fast booting, if the memory mirroring has been completed before the user uses the terminal device, and after the user uses the terminal device, some operations may cause changes in the system, application status or setting values , these changes will be stored in the storage medium through the file system. If the user uses the terminal device for a period of time, and then uses the memory mirroring technology to achieve fast booting, at this time, the data in the memory mirroring may be inconsistent with the data in the storage medium, and the Causes the file system to crash directly, causing the file system to no longer be usable. In order to solve this problem, in the prior art, before closing the terminal device each time, a memory image is performed on the latest memory state to ensure that the memory image is consistent with the data in the storage medium.

However, in the process of making memory mirroring every time, it is necessary to ensure that the power supply of the terminal equipment is stable. If there is a sudden power failure, the making of memory mirroring will fail, resulting in the failure of making memory mirroring, and the memory mirroring cannot be used when the next boot Technology to achieve fast boot, so that the reliability of the system is not high.

Contents of the invention

Embodiments of the present invention provide a method and device for making a memory image, so as to improve system reliability.

In a first aspect, an embodiment of the present invention provides a method for making a memory image, including:

The terminal device judges the state of the terminal device;

If the terminal device is in the state of memory mirroring, before starting the first application file, the terminal device performs memory mirroring processing in the triggering open mode of the database service;

The terminal device starts the first application file after the memory image is created.

With reference to the first aspect, in a first possible implementation of the first aspect, the trigger opening mode is to open the database file when the terminal device detects a database operation request, and when the terminal device does not detect the The processing mode of closing the database file when the database operation request or the end of the access of the database operation request is detected.

In combination with the first aspect or the first possible implementation of the first aspect, in the second possible implementation of the first aspect, before performing the memory mirroring process in the triggered open mode of the database service, the The method also includes:

The terminal device configures compiled items for the system file, so as to release the coupling between the data in the memory and the data in the storage medium;

Then, the memory mirroring process is performed under the triggered open mode of the database service, including:

After the terminal device releases the coupling between the data in the memory and the data in the storage medium, it performs memory image creation processing in the triggered open mode of the database service.

In combination with the first aspect, the first aspect of the first aspect to any of the second possible implementation manners of the first aspect, in the third possible implementation manner of the first aspect, the trigger opening of the database service Before carrying out the memory image making process under the mode, the method also includes:

The terminal device judges whether the working mode of the database service is a long-term open mode;

If the working mode of the database service is the long-term open mode, switch the working mode of the database service from the long-term open mode to the triggered open mode.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes:

If the terminal device is in the mirror recovery state, then switch the working mode of the database service from the trigger open mode to the long-term open mode;

In the long-term open mode of the database service, the terminal device reads the memory image to start the local application file.

With reference to the fourth possible implementation of the first aspect, in the fifth possible implementation of the first aspect, the reading the memory image to start the local application file specifically includes:

The terminal device triggers the background service for memory mirroring recovery to send a notification message to other background services except the background service for memory mirroring recovery, so that the other background services recognize that the notification message is a memory mirroring When restoring a message, read the memory image;

The terminal device starts a local application file according to the read memory image.

In a second aspect, an embodiment of the present invention provides a method for making a memory image, including:

The terminal device judges the state of the terminal device;

If the terminal device is in the memory mirroring state, the terminal device performs memory mirroring processing before starting the first application file and before starting the database service;

The terminal device starts the first application file after the memory image is created.

In a third aspect, an embodiment of the present invention provides a device for making a memory image, including:

a judging module, configured to judge the state of the terminal device;

A processing module, configured to perform mirroring processing in the triggered open mode of the database service before starting the first application file when the judging module judges that the terminal device is in the memory mirroring state;

A startup module, configured to start the first application file after the memory image is created.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the device further includes: a detection module, configured to detect whether there is a database operation request, or detect whether the access of the database operation request ends;

Wherein, the trigger opening mode is to open the database file when the detection module detects a database operation request, and close when the detection module does not detect the database operation request or detects that the access of the database operation request ends The processing mode for the database file.

In combination with the third aspect or the first possible implementation of the third aspect, in the second possible implementation of the third aspect, the processing module is further configured to configure compiled items for system files, so as to release memory The coupling between the data in the storage medium and the data in the storage medium;

The processing module is further configured to perform memory image creation processing in the triggered open mode of the database service after releasing the coupling between the data in the memory and the data in the storage medium.

With reference to the third aspect, any one of the first possible implementation manner of the third aspect to the second possible implementation manner of the third aspect, in the third possible implementation manner of the third aspect, the device further includes a switching module; in,

The judging module is also used to judge whether the working mode of the database service is a long-term open mode;

The switching module is configured to switch the working mode of the database service from the long-term open mode to the triggered open mode when the working mode of the database service is the long-term open mode.

With reference to the third aspect, in a fourth possible implementation manner of the third aspect, the device further includes a switching module; wherein,

The switching module is used to switch the working mode of the database service from the trigger open mode to the long-term open mode if the judgment module determines that the terminal device is in the mirror recovery state;

The startup module is further configured to read the memory image in the long-term open mode of the database service to start the local application file.

With reference to the fourth possible implementation of the third aspect, in a fifth possible implementation of the third aspect, the startup module includes:

A trigger unit, configured to trigger the background service used for memory mirror recovery to send a notification message to other background services except the background service used for memory mirror recovery, so that the other background services recognize that the notification message is a memory When the image recovery message is read, the memory image is read;

The starting unit is configured to start the local application file according to the read memory image.

In a fourth aspect, an embodiment of the present invention provides a device for making a memory image, including:

a judging module, configured to judge the state of the terminal device;

A processing module, configured to perform memory mirroring processing before starting the first application file and before starting the database service when the judging module judges that the terminal device is in the memory mirroring state;

A startup module, configured to start the first application file after the memory image is created.

In the method and device for making memory mirroring provided by the embodiments of the present invention, the terminal device judges its state, and if it is judged that the terminal device is in the state of making memory mirroring, the terminal device will be in the database before starting the first application file. The image creation process is performed in the triggered open mode of the service, and the terminal device starts the first application file after the memory image creation is completed. Since the memory mirroring is made in the triggered open mode of the database service and before the first application file is started, data coupling can be effectively decoupled, and the dependence between the data of the file system in the memory and the data in the storage medium can be removed. , thereby improving the reliability of the system.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic flow chart of Embodiment 1 of the method for making a memory image in the present invention;

Fig. 2 is a schematic flow chart of Embodiment 2 of the method for making a memory image in the present invention;

Fig. 3 is a schematic flow chart of Embodiment 3 of the method for making a memory image in the present invention;

FIG. 4 is a schematic structural diagram of Embodiment 1 of a device for making a memory image in the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 2 of the device for making memory mirroring according to the present invention;

FIG. 6 is a schematic structural diagram of Embodiment 3 of the device for making memory mirror images according to the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 4 of the device for making memory mirroring according to the present invention;

FIG. 8 is a schematic structural diagram of Embodiment 1 of a terminal device according to the present invention;

FIG. 9 is a schematic structural diagram of Embodiment 2 of a terminal device according to the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

FIG. 1 is a schematic flowchart of Embodiment 1 of the method for making a memory image in the present invention. An embodiment of the present invention provides a method for making a memory image. The method can be executed by any device that executes the method for making a memory image. The device can be implemented by software and/or hardware. In this embodiment, the apparatus may be integrated into a terminal device. As shown in Figure 1, the method of this embodiment may include:

Step 101, the terminal device judges the state of the terminal device.

In this embodiment, after the terminal device is turned on, it will judge whether it is in the state of creating a memory image or in the state of restoring the image. In practical applications, the state of the terminal device can be judged by setting a configuration value in the system. For example, if the configuration value is known to be 0 through judgment, it can be concluded that the terminal device is in the mirroring state. If the configuration If the value is 1, it can be concluded that the terminal device is in the mirror recovery state. It should be noted that the corresponding relationship between the configuration value and the state of the terminal device can be set according to actual needs, which is not limited in the present invention.

Step 102. If the terminal device is in the memory mirroring state, before starting the first application file, the terminal device performs memory mirroring processing in the triggered opening mode of the database service.

In this embodiment, after the terminal device is powered on, generally start the small boot system first. After the small boot system is successfully started, the hardware device will be initialized, and then the main system will be started, and the main system will load the application files in sequence, including loading the database. Services, Application Manager, etc. For example: In an embedded operating system, the BootLoader is generally started first to initialize the hardware device, establish a memory space map, etc., so as to bring the system's hardware and software environment to a suitable state for loading the main system and other application files. prepare for. Wherein, optionally, the terminal device may be an intelligent terminal device, such as a smart phone, a PAD, and the like.

It should be noted that, in the prior art, after the database service is started, the database file will be continuously opened and the handle of the file will be held for a long time, so as to perform operations such as querying, inserting or deleting data. At this time, when a background application file is started, the system, application status or setting value may change, and since the database file is open, these changed data will be stored in the database file, making the memory There is a dependency between the data in the file system and the data in the storage medium. In order to solve this problem, in this embodiment, it is necessary to make the working mode of the database service a triggered open mode. In practical applications, the database service can be started directly in the default triggered open mode, or the terminal device can detect the entire system when the database service is started. If it is known that the system is in the state of making memory mirroring, it will The working mode of the database service is switched from the long-term open mode to the triggered open mode. It is worth noting that in this embodiment, the working mode of the database service can be the default mode, or the subsequent setting mode can be adopted, but other modes can also be used, as long as the working mode is guaranteed to be the triggered open mode, the present invention is for This is not limited. In addition, the storage medium includes systems or devices capable of storing data, such as databases and disks, and this embodiment does not specifically limit the specific form of the storage medium.

For example, taking the Android system as an example to describe in detail, when the Android system starts for the first time, the initialization (Init) process will start the Service Manager (Service Manager), and the Service Manager will start other background services in turn, including Database service (Sqlite), etc., among them, the database service can be started directly with the default trigger open mode, or the terminal device can detect the entire system when the database service is started, and if it is known that the system is in the state of making memory mirroring at this time , then switch the working mode of the database service from the long-term open mode to the triggered open mode.

In this embodiment, after the terminal device scans all the application files, when the application management service in the terminal device is about to start the first application file, it will trigger the process of creating a memory image, so as to create a memory image. At this time, since all application files are not started, and the working mode of the database service is still trigger open mode, that is, the database operation is in a loosely coupled state, therefore, there is no connection between the data in the file system in the memory and the data in the storage medium. Generate dependence. At the same time, since all the files required for booting are ready at this time, and the system is about to start the first application file, this moment is the best time to make a memory image, and the made memory image conforms to the fast Boot time requirements. For example: in the Android system, after the service manager starts the application manager (Application Manager), the application manager will prepare to start the application file. Before the application server starts the first application file, it will first trigger the process of making a memory image to Complete the production of the memory image.

Step 103, the terminal device starts the first application file after the memory image is created.

In this embodiment, after the memory image is created, the terminal device will start the first application file, and start the local application files sequentially from the first application file, including the desktop launcher and other preloaded applications, to complete Boot process.

What needs to be explained is that in the triggered open mode of the database service, and after the memory image is created before the first application file is started, when the terminal device is powered on or restarted, the memory image can be used for on-site recovery. To achieve the purpose of fast booting. In addition, in the subsequent work process, if you use this memory image for on-site recovery, you only need to refresh the latest data values of the platform services synchronously. In the specific implementation process, responsible The background service of mirror recovery will send a notification message to other background services. After receiving the notification message, other background services only need to re-read the data in the database if they recognize the on-site recovery from memory mirroring according to the notification message. , just apply the data value of the latest state. Wherein, the platform service includes system background services that have been started in the memory image, such as network services, power services, and the like. As for the application files, since all the application files are not started when the memory image is made, the application files can be loaded with the latest data values without any modification. It can be seen that using this method to make memory The mirror image not only avoids the phenomenon in the prior art that the latest memory state needs to be mirrored before closing the terminal device each time, but also improves the practicability of the system.

In the method for making memory mirroring provided by the embodiment of the present invention, the terminal device judges its state, and if it is judged that the terminal device is in the memory mirroring state, the terminal device starts the first application file before starting the first application file. In the trigger open mode, the memory mirroring process is performed. After the memory mirroring is completed, the first application file is started. Since the memory mirroring is made in the triggered open mode of the database service and before the first application file is started, data coupling can be effectively decoupled, and the dependence between the data of the file system in the memory and the data in the storage medium can be removed. , thereby improving the reliability of the system.

Optionally, the trigger opening mode is a processing mode in which the database file is opened when the terminal device detects a database operation request, and the database file is closed when the terminal detects that no database operation request is detected or that the database operation request access ends.

Specifically, when a specific database operation request is detected, the terminal device opens the database file, and when no database operation request is detected or the database operation request has been accessed, the database file is immediately closed, and the trigger opening mode can be used. Remove the long-term dependence of data on the storage medium, wherein the database operation request can be query, add, delete and other operations, for example.

Optionally, the terminal device configures compiled items for the system file, so as to release the coupling between the data in the memory and the data in the storage medium;

Then, in the triggered opening mode of the database service, the memory mirroring process is performed, including:

After releasing the coupling between the data in the memory and the data in the storage medium, the terminal device performs the memory mirroring process in the triggered opening mode of the database service.

Specifically, if there is a phenomenon of coupling between some functional options without going through the database, at this time, the resulting coupling can be released at the compilation stage. In practical applications, the terminal device can disable some functional options that generate data coupling by configuring the compilation items of the system file, so as to remove the compilation options that generate dependencies, thereby releasing the connection between the data in the memory and the data in the storage medium. Coupling to achieve the purpose of releasing the dependence between the data in the file system in the memory and the data in the storage medium. For example: for the Android system, the user compilation mode can be used for static compilation, and the odex file generated by the dalvik virtual machine for debugging in the eng mode will not be generated during operation. After the generated data coupling is released in the compilation phase, the memory mirroring process is performed in the triggered open mode of the database service.

Optionally, before the memory mirroring process is performed in the triggered open mode of the database service, the method further includes: the terminal device judges whether the working mode of the database service is a long-term open mode; if the working mode of the database service is a long-term open mode, Then switch the working mode of the database service from the long-term open mode to the triggered open mode.

In the method for making memory mirroring provided by the embodiment of the present invention, the terminal device judges its state, and if it is judged that the terminal device is in the memory mirroring state, the terminal device starts the first application file before starting the first application file. Create a memory image in the trigger open mode. After the memory image is created, start the first application file. Since the memory mirroring is made in the triggered open mode of the database service and before the first application file is started, data coupling can be effectively decoupled, and the dependence between the data of the file system in the memory and the data in the storage medium can be removed. , thereby improving the reliability of the system. In addition, when the terminal device configures the compilation items of the system files, it can also remove the compilation options that generate dependencies, so as to decouple the data and ensure the consistency of the data in the memory image and the data in the storage medium.

FIG. 2 is a schematic flow diagram of Embodiment 2 of the method for making memory mirroring according to the present invention. On the basis of Embodiment 1 of the method for making memory mirroring, this embodiment describes in detail an embodiment in which a terminal device utilizes memory mirroring to realize fast booting. As shown in Figure 2, the method of this embodiment may include:

Step 201, the terminal device judges the state of the terminal device.

Step 201 is similar to step 101 and will not be repeated here.

Step 202, if the terminal device is in the mirror recovery state, switch the working mode of the database service from the triggered open mode to the long-term open mode.

In this embodiment, when the user powers on the terminal device again and restores the scene from memory mirroring, the terminal device judges that if it knows that the system is in the state of mirroring recovery at this time, it will change the working mode of the database service from the triggered open mode to Switch to the long-term open mode again. At this time, the database service will continue to open and hold the handle of the file for a long time, that is, the performance of the database service will return to the normal use state to complete data query, insert or delete operations. For example: in the Android system, after the user powers on the terminal device again, BootLoader will restore the mirror image. At this time, the working mode of the database service (Sqlite) will be switched from the trigger open mode to the long-term open mode, and the database service Will hold the db file handle for a long time.

Step 203, the terminal device reads the memory image in the long-term open mode of the database service to start the local application file.

In this embodiment, after switching the working mode of the database service to the long-term open mode, the terminal device can read the memory image according to the created memory image to complete the boot process of the terminal device. In the specific implementation process, the terminal device It is only necessary to refresh the data values of the latest state of the platform service synchronously. In the specific implementation process, the background service responsible for mirror recovery will send notification messages to other background services except the background service responsible for memory mirror recovery. After receiving the notification message, other background services only need to re-read the data in the database and apply the data value of the latest state if they recognize that the on-site recovery is performed from the memory mirror according to the notification message. Wherein, the platform service includes system background services that have been started in the memory image, such as network services, power services, and the like. As for the application files, since all the application files are not started when the memory image is made, the application files can be loaded with the latest data values without any modification. In addition, because the data in the memory mirror and the data in the storage medium are in a loosely coupled state, the system will not crash during the fast boot process. Therefore, the terminal device can smoothly start the desktop application and other services defined as preloading, for example, the desktop launcher Launcher and other preloading applications.

In the method for making memory mirroring provided by the embodiment of the present invention, the terminal device judges its state, and if it is judged that the terminal device is in the memory mirroring state, the terminal device starts the first application file before starting the first application file. Create a memory image in the trigger open mode. After the memory image is created, start the first application file. Since the memory mirroring is made in the triggered open mode of the database service and before the first application file is started, data coupling can be effectively decoupled, and the dependence between the data of the file system in the memory and the data in the storage medium can be removed. , thereby improving the reliability of the system. In addition, when the terminal device is in the mirror recovery state, the working mode of the database service is switched to the long-term open mode, and in this working mode, the memory mirror is read to achieve the purpose of using the memory mirror for fast booting.

FIG. 3 is a schematic flow chart of Embodiment 3 of the method for making a memory image in the present invention. An embodiment of the present invention provides a method for making a memory image. The method can be executed by any device that executes the method for making a memory image. The device can be implemented by software and/or hardware. In this embodiment, the apparatus may be integrated into a terminal device. As shown in Figure 3, the method of this embodiment may include:

Step 301, the terminal device judges the state of the terminal device.

In this embodiment, after the terminal device is turned on, it will judge whether it is in the state of creating a memory image or in the state of restoring the image. In practical applications, the state of the terminal device can be judged by setting a configuration value in the system. For example, if the configuration value is known to be 0 through judgment, it can be concluded that the terminal device is in the mirroring state. If the configuration If the value is 1, it can be concluded that the terminal device is in the mirror recovery state. It should be noted that the corresponding relationship between the configuration value and the state of the terminal device can be set according to actual needs, which is not limited in the present invention.

Step 302. If the terminal device is in the memory mirroring state, the terminal device performs memory mirroring processing before starting the first application file and before starting the database service.

In the prior art, after the database service is started, it will continue to open the database file and hold the handle of the file for a long time to perform operations such as data query, insertion or deletion. At this time, when a background application file is started, It may cause the system, application state or setting value to change, and because the database file is open, the changed data will be stored in the database file, so that the data in the file system in the memory and the data in the storage medium Generate dependence. In order to solve this problem, in this embodiment, if the terminal device is in the memory mirroring state, after the terminal device has scanned all the application files, before starting the first application file, and before the database service is started, Trigger the memory mirroring process to make a memory mirror. At this time, since all the application files are not started, and the database service is not started, there is no dependence between the data in the file system in the memory and the data in the storage medium.

Step 303, the terminal device starts the first application file after the memory image is created.

In this embodiment, after the memory image is created, the terminal device will start the first application file, and start the local application files sequentially from the first application file, including the desktop launcher and other preloaded applications, to complete Boot process.

In the method for making a memory image provided by the embodiment of the present invention, the terminal device judges its state, and if it is judged that the terminal device is in the memory mirroring state, the terminal device starts the first application file, and before starting the first application file, and in the database service The memory mirroring process is performed before starting, and after the memory mirroring is completed, the first application file is started. Since the memory mirroring is made before the first application file is started and before the database service is started, the data coupling can be effectively decoupled, and the dependence between the data in the file system in the memory and the data in the storage medium is removed, thus Improve the reliability of the system.

FIG. 4 is a schematic structural diagram of Embodiment 1 of the device for making a memory image according to the present invention. As shown in FIG. 4 , an apparatus 400 for making a memory image provided by an embodiment of the present invention includes a judging module 401 , a processing module 402 and a starting module 403 .

Wherein, the judging module 401 is used for judging the state of the terminal device; the processing module 402 is used for judging that the terminal device is in the memory mirroring state by the judging module 401, before starting the first application file, The memory image creation process is performed in the triggered opening mode of the database service; the starting module 403 is configured to start the first application file after the memory image creation is completed.

The device for making memory mirroring provided by the embodiments of the present invention judges the state of the terminal device, if it is judged that the terminal device is in the state of making memory mirroring, before starting the first application file, trigger the opening mode of the database service Next, the memory mirroring process is performed, and after the memory mirroring is completed, the first application file is started. Since the memory mirroring is made in the triggered open mode of the database service and before the first application file is started, data coupling can be effectively decoupled, and the dependence between the data of the file system in the memory and the data in the storage medium can be removed. , thereby improving the reliability of the system.

FIG. 5 is a schematic structural diagram of Embodiment 2 of the device for making a memory image according to the present invention. As shown in FIG. 5 , this embodiment is based on the embodiment shown in FIG. 4 , and the device 400 further includes a detection module 404 .

Wherein, the detection module 404 is used to detect whether there is a database operation request, or detect whether the access of the database operation request ends; the trigger opening mode is to open the database file when the detection module 404 detects the database operation request, and The processing mode of closing the database file when the detection module 404 does not detect the database operation request or detects that the access of the database operation request ends.

Optionally, the processing module 402 is also configured to configure compiled items for the system file, so as to release the coupling between the data in the memory and the data in the storage medium;

The processing module 402 is further configured to perform memory image creation processing in the triggered open mode of the database service after releasing the data coupling between the data in the internal memory and the data in the storage medium.

Optionally, the device 400 further includes a switching module 405, wherein,

The judging module 401 is also used to judge whether the working mode of the database service is a long-term open mode;

The switching module 405 is configured to switch the working mode of the database service from the long-term open mode to the triggered open mode when the judging module 401 determines that the working mode of the database service is the long-term open mode.

The device for making memory mirroring in this embodiment can be used to implement the technical solution of the method for making memory mirroring provided by any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.

FIG. 6 is a schematic structural diagram of Embodiment 3 of the device for making memory mirroring according to the present invention. As shown in FIG. 6 , this embodiment is based on the embodiment shown in FIG. 4 , and the device 400 further includes a switching module 406 .

Wherein, the switching module 406 is used to switch the working mode of the database service from the triggered open mode to the long-term open mode when the judging module 401 determines that the terminal device is in the mirror recovery state;

The startup module 403 is further configured to read the memory image in the long-term open mode of the database service to start the local application file.

Optionally, the startup module 403 includes:

The triggering unit 4031 is used to trigger the background service used for memory mirror recovery to send a notification message to other background services except the background service used for memory mirror recovery, so that the other background services recognize that the notification message is a memory When the image recovery message is read, the memory image is read;

The starting unit 4032 is configured to start the local application file according to the read memory image.

The device for making memory mirroring in this embodiment can be used to implement the technical solution of the method for making memory mirroring provided by any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.

FIG. 7 is a schematic structural diagram of Embodiment 4 of the device for making memory mirroring according to the present invention. As shown in FIG. 7 , an apparatus 700 for making a memory image provided by an embodiment of the present invention includes a judging module 701 , a processing module 702 and a starting module 703 .

Wherein, the judging module 701 is used for judging the state of the terminal device; the processing module 702 is used for judging that the terminal device is in the memory mirroring state by the judging module 701, before starting the first application file, And before starting the database service, the process of creating a memory image is performed; the starting module 703 is configured to start the first application file after the memory image is created.

The device for making memory mirroring provided by the embodiment of the present invention judges the state of the terminal device, if it is judged that the terminal device is in the state of making memory mirroring, before starting the first application file and before starting the database service, Perform memory image creation processing, and start the first application file after the memory image creation is completed. Since the memory mirroring is made before the first application file is started and before the database service is started, the data coupling can be effectively decoupled, and the dependence between the data in the file system in the memory and the data in the storage medium is removed, thereby improving system reliability.

FIG. 8 is a schematic structural diagram of Embodiment 1 of a terminal device according to the present invention. As shown in Figure 8, the terminal device 800 provided by this embodiment includes a processor 801 and a memory 802, wherein the memory 802 stores execution instructions, and when the terminal device is running, the processor 801 communicates with the memory 802, and the processor 801 calls The execution instructions in the memory 802 are used to perform the following operations:

judging the state of the terminal device;

If the terminal device is in the memory mirroring state, before starting the first application file, the memory mirroring process is performed under the triggering open mode of the database service;

After the memory image is created, start the first application file.

Optionally, the trigger opening mode is to open the database file when a database operation request is detected, and close the database file when the database operation request is not detected or the database operation request is detected. model.

Optionally, before performing the process of creating a memory image in the triggered open mode of the database service, the method further includes:

Configure the compilation items for the system files to decouple the data in the memory and the data in the storage medium;

Then, the memory mirroring process is performed under the triggered open mode of the database service, specifically including:

After the coupling between the data in the memory and the data in the storage medium is released, the memory mirroring process is performed in the triggered open mode of the database service.

Optionally, before performing the memory mirroring process in the triggered open mode of the database service, the method further includes:

Judging whether the working mode of the database service is a long-term open mode;

If the working mode of the database service is the long-term open mode, switch the working mode of the database service from the long-term open mode to the triggered open mode.

Optionally, the method also includes:

If the terminal device is in the mirror recovery state, then switch the working mode of the database service from the trigger open mode to the long-term open mode;

In the long-term open mode of the database service, the terminal device reads the memory image to start the local application file.

Optionally, the reading the memory image to start the local application file specifically includes:

Triggering the background service for memory mirroring recovery to send a notification message to other background services except the background service for memory mirroring recovery, so that when the other background services recognize that the notification message is a memory mirroring recovery message, read the memory image;

Start the local application file according to the read memory image.

The terminal device provided in this embodiment can be used to implement the technical solution of the device for creating a memory image provided in any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.

FIG. 9 is a schematic structural diagram of Embodiment 2 of a terminal device according to the present invention. As shown in Figure 9, the terminal device 900 provided by this embodiment includes a processor 901 and a memory 902, wherein the memory 902 stores execution instructions, and when the terminal device is running, the processor 901 communicates with the memory 902, and the processor 901 calls The execution instructions in the memory 902 are used to perform the following operations:

judging the state of the terminal device;

If the terminal device is in the memory mirroring state, before starting the first application file and before starting the database service, perform memory mirroring processing;

After the memory image is created, start the first application file.

The terminal device provided in this embodiment can be used to implement the technical solution of the device for creating a memory image provided in any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (14)

1. A method of making a memory mirror, comprising:

the terminal equipment judges the state of the terminal equipment;

if the terminal equipment is in the memory mirror image manufacturing state, before the terminal equipment starts the first application file, memory mirror image manufacturing processing is carried out in a triggering opening mode of database service;

and the terminal equipment starts the first application file after the memory mirror image is manufactured.

2. The method according to claim 1, wherein the triggered opening mode is a processing mode for opening a database file when the terminal device detects a database operation request, and closing the database file when the terminal device does not detect the database operation request or detects that access to the database operation request is finished.

3. The method according to claim 1 or 2, wherein before the memory mirroring process in the triggered open mode of the database service, the method further comprises:

the terminal equipment configures a compiling item for the system file so as to release the coupling between the data in the memory and the data in the storage medium;

then, the performing memory mirroring in the triggered open mode of the database service includes:

and after the terminal equipment releases the coupling between the data in the memory and the data in the storage medium, performing memory mirror image manufacturing processing in a triggering opening mode of the database service.

4. The method according to any of claims 1-3, wherein before performing the memory mirroring process in the triggered open mode of the database service, the method further comprises:

the terminal equipment judges whether the working mode of the database service is a long-term open mode or not;

and if the working mode of the database service is a long-term opening mode, switching the working mode of the database service from the long-term opening mode to the trigger opening mode.

5. The method of claim 1, further comprising:

if the terminal equipment is in the mirror image recovery state, switching the working mode of the database service from the trigger opening mode to a long-term opening mode;

and the terminal equipment reads the memory mirror image in a long-term open mode of the database service so as to start a local application file.

6. The method according to claim 5, wherein the reading the memory image to start a local application file specifically comprises:

the terminal device triggers a background service for restoring the memory mirror image to send a notification message to other background services except the background service for restoring the memory mirror image, so that the other background services read the memory mirror image when recognizing that the notification message is a memory mirror image restoring message;

and the terminal equipment starts a local application file according to the read memory mirror image.

7. A method of making a memory mirror, comprising:

the terminal equipment judges the state of the terminal equipment;

if the terminal equipment is in the memory mirror image manufacturing state, before the terminal equipment starts the first application file and before the terminal equipment starts the database service, memory mirror image manufacturing processing is carried out;

and the terminal equipment starts the first application file after the memory mirror image is manufactured.

8. An apparatus for making a memory mirror, comprising:

the judging module is used for judging the state of the terminal equipment;

the processing module is used for carrying out memory mirror image manufacturing processing in a triggering opening mode of database service before starting the first application file when the judging module judges that the terminal equipment is in the memory mirror image manufacturing state;

and the starting module is used for starting the first application file after the memory mirror image is manufactured.

9. The apparatus of claim 8, further comprising: the detection module is used for detecting whether a database operation request exists or whether the access of the database operation request is finished;

the triggered opening mode is a processing mode for opening a database file when the detection module detects a database operation request, and closing the database file when the detection module does not detect the database operation request or detects that the access of the database operation request is finished.

10. The apparatus of claim 8 or 9, wherein the processing module is further configured to configure a compilation item for decoupling data in the memory from data in the storage medium;

the processing module is further configured to perform memory mirroring in the triggered open mode of the database service after decoupling the data in the memory from the data in the storage medium.

11. The apparatus according to any one of claims 8-10, further comprising a switching module; wherein,

the judging module is also used for judging whether the working mode of the database service is a long-term open mode;

the switching module is configured to switch the working mode of the database service from the long-term open mode to the trigger open mode when the judging module judges that the working mode of the database service is the long-term open mode.

12. The apparatus of claim 8, further comprising a switching module; wherein,

the switching module is used for switching the working mode of the database service from the triggering opening mode to a long-term opening mode when the judging module judges that the terminal equipment is in the mirror image recovery state;

the starting module is further configured to read the memory mirror image in a long-term open mode of the database service to start a local application file.

13. The apparatus of claim 12, wherein the activation module comprises:

the trigger unit is used for triggering the background service for restoring the memory mirror image to send a notification message to other background services except the background service for restoring the memory mirror image, so that the other background services read the memory mirror image when recognizing that the notification message is the memory mirror image restoring message;

and the starting unit is used for starting the local application file according to the read memory mirror image.

14. An apparatus for making a memory mirror, comprising:

the judging module is used for judging the state of the terminal equipment;

the processing module is used for carrying out memory mirror image manufacturing processing before starting the first application file and before starting the database service when the judging module judges that the terminal equipment is in the memory mirror image manufacturing state;

and the starting module is used for starting the first application file after the memory mirror image is manufactured.