JP7107069B2 - Information processing device and startup method - Google Patents

Description

The present invention relates to an information processing device and a startup method.

A method called hibernation has been conventionally known, which enables power saving of an information processing apparatus and speeding up of start-up.

Hibernation creates data called a snapshot of the status information during operation of the information processing device, such as the contents of memory and hardware settings such as the CPU, and saves it in a non-volatile storage medium before shutting down the information processing device. do. At the next start-up, the information processing device uses the snapshot (snapshot image) saved in the non-volatile storage medium to restore the system state before shutdown, thereby interrupting the system during operation and It enables speeding up of startup and restart (see Patent Document 1, for example).

In the conventional hibernation, a hibernation snapshot is created before shaft-down, but it takes time to create the snapshot, so it is not suitable for use in information processing devices that require quick response to shaft-down. For this reason, in an information processing apparatus that requires responsiveness to shaft down, it is conceivable to create a fixed snapshot in advance, thereby eliminating the need to create a snapshot before shaft down.

However, an information processing device in which a fixed snapshot is created in advance cannot be used in an environment where the presence or absence of peripheral devices or whether the device is enabled or disabled is different from when the snapshot was created, and cannot flexibly respond to changes in the environment. There was a problem.

The embodiments of the present invention have been devised in view of the above points, and it is an object of the present invention to provide an information processing apparatus that can flexibly cope with environmental changes even with hibernation activation based on a fixed snapshot.

In order to achieve the above object, claim 1 of the present application is an information processing apparatus that performs hibernation startup, comprising selection means for selecting snapshot creation startup or snapshot startup, and one or more when the snapshot creation startup is selected. activation means for starting the activation process of the application; one or more applications for which a snapshot creation time point in the activation process is set and which notifies after the activation process has proceeded to the creation time point; creation instruction means for issuing a snapshot creation instruction after receiving the notification from all of the above; creation means for creating a snapshot based on the creation instruction; storage means for storing the snapshot; a start instruction means for reading the snapshot stored in the storage means at the time of selection of activation, and instructing the application to start the activation process after the time of creation, thereby completing the activation process of the application. ,

According to the embodiment of the present invention, it is possible to flexibly respond to changes in the environment even with hibernation startup using a fixed snapshot.

1 is a configuration diagram of an example of an image processing apparatus according to an embodiment; FIG. 3 is a functional configuration diagram of an example of an operation unit according to the embodiment; FIG. 6 is a flowchart of an example of a startup process from power-on according to the embodiment; FIG. 10 is a flowchart of an example of snapshot creation activation in step S13; FIG. FIG. 11 is a flowchart of an example of an application activation process in step S25; FIG. FIG. 10 is a flowchart of an example of boot loader startup in step S21; FIG. FIG. 11 is a flowchart of an example of OS activation in step S22; FIG. FIG. 11 is a flowchart of an example of initialization of a touch panel driver in step S62; FIG. FIG. 11 is a flowchart of an example of snapshot activation in step S14; FIG. It is a flow chart of an example of the continuation process of step S85. FIG. 5 is a functional configuration diagram of another example of the operating unit according to the embodiment; FIG. 12 is a flowchart of another example of the application activation process in step S25; FIG. FIG. 4 is a configuration diagram of an example of a priority queue; FIG. 4 is a configuration diagram of an example of a snapshot image and a priority queue stored in eMMC; FIG. 11 is a flow chart of another example of the continuation process of step S85; FIG. 8 is a flowchart of an example of priority change processing;

Next, an embodiment of the invention will be described. In this embodiment, an example in which an information processing apparatus functioning as an operation unit of an image processing apparatus performs hibernation startup will be described. An image processing device is an example of an embedded device, such as an MFP (Multifunction Peripheral). However, the information processing device is not limited to this, and any device on which an application can be installed may be used. Also good.

[First Embodiment]
<Hardware configuration>
FIG. 1 is a configuration diagram of an example of an image processing apparatus according to this embodiment. The image processing apparatus 1 shown in FIG. 1 includes a main unit 2 and an operation unit 3 which are connected by a cable 4 so as to be capable of data communication. Note that the main unit 2 and the operation unit 3 may be connected wirelessly (including infrared rays) instead of wiredly using the cable 4 . Under the control of the main unit controller, the main unit 2 reads an original using a scanner device and prints on paper using a plotter device.

The operation unit 3 has an SOC (System-on-a-chip) 10 , a touch panel 12 , an eMMC (embedded Multi Media Card) 14 , an LCD (Liquid Crystal Display) 16 and a memory 18 . The SOC 10 includes a USB (Universal Serial Bus) function 20, a CPU (Central Processing Unit) 22, an MMC controller 24, an LCD controller 26, a GPIO (General Purpose Input/Output) 28, and an I2C (Inter-Integrated Circuit) in one chip. 30 and a memory controller 32 .

The SOC 10 is designed to function as a system for the operation unit 3. The SOC 10 is configured to boot from the eMMC 14 which is a built-in multimedia card, and the system is booted from a boot loader placed at a specific location of the eMMC 14 . The bootloader loads the kernel and root filesystem located on the eMMC 14 file partition and launches the kernel.

As will be described later, the operation unit 3 according to the present embodiment performs snapshot creation activation or snapshot activation. In the case of snapshot creation activation, after the kernel is activated, the operation unit 3 causes the eMMC 14, which is a non-volatile storage medium, to store a snapshot created by a snapshot creation activation process described later.

In the case of snapshot activation, after the kernel is activated, the operation unit 3 develops the snapshot stored in the eMMC 14 in the memory 18 by performing snapshot activation processing, which will be described later, and performs hibernation activation. For example, the image processing apparatus 1 according to the present embodiment performs snapshot creation activation before shipment from the factory, and stores the snapshot in the eMMC 14 . After shipment from the factory, the image processing apparatus 1 according to the present embodiment performs snapshot activation by normal power-on activation. Therefore, the image processing apparatus 1 according to the present embodiment does not enter into an unnatural state in which the power does not turn off easily when creating a snapshot when the shaft is down.

The touch panel 12 receives an operation from a user. The LCD 16 performs screen display. The memory 18 is an example of a volatile storage medium that temporarily holds programs and data. The CPU 22 develops programs and data from a storage medium such as the eMMC 14 into the memory 18 and executes processing, thereby realizing control and functions of the operation unit 3 .

The main unit 2 and the operation unit 3 may be provided in separate housings as shown in FIG. 1, or may be provided in the same housing. For example, by wirelessly connecting the operating unit 3, which is provided in a housing separate from the housing of the main unit 2 and can be separated from the main unit 2, it is possible to use it while being separated from the main unit 2. becomes.

<Software configuration>
The operation unit 3 according to the present embodiment can realize various functions as shown in FIG. 2 by executing a program on the hardware configuration shown in FIG. 1, for example. FIG. 2 is a functional configuration diagram of an example of the operation unit according to this embodiment. The operation unit 3 shown in FIG. 2 implements a boot loader 50 , an OS (operating system) 52 , an application activation unit 54 , an application 56 , a snapshot manager 58 , a snapshot creation activation selection unit 60 and a snapshot storage unit 62 .

The boot loader 50 has a snapshot creation start determination unit 70 and a start operation control unit 72 . A snapshot creation activation determination unit 70 determines whether the activation from power-on is a snapshot creation activation or a snapshot activation. The startup operation control unit 72 controls the startup operation based on the judgment by the snapshot creation startup judgment unit 70 .

OS 52 has kernel 74 . The kernel 74 also has a snapshot creation activation determination unit 76 , a snapshot creation activation operation control unit 78 , a snapshot creation instruction reception unit 80 , a snapshot creation unit 82 and a snapshot activation operation control unit 84 .

A snapshot creation activation determination unit 76 determines whether the activation from power-on is a snapshot creation activation or a snapshot activation. The snapshot creation activation operation control unit 78 controls the snapshot creation activation operation in the case of snapshot creation activation.

A snapshot creation instruction receiving unit 80 receives a snapshot creation instruction from the snapshot manager 58 . The snapshot creation unit 82 creates a snapshot when the snapshot creation instruction reception unit 80 receives a snapshot creation instruction from the snapshot manager 58 . Further, the snapshot activation operation control unit 84 controls the snapshot activation operation in the case of snapshot activation.

The application activation unit 54 is implemented by, for example, "init". The application activation unit 54 is the first process after the kernel is activated, and activates one or more applications 56 according to a setting file such as "init.rc". The application 56 has an activation processing unit 86 , a snapshot creation point passage notification unit 88 , and a snapshot activation start instruction reception unit 90 .

The activation processing unit 86 performs activation processing of the application 56 . By design, the snapshot creation point passage notification unit 88 has a timing (snapshot creation point) at which a snapshot is created from the start to the end of the activation process. The snapshot creation point passage notification unit 88 notifies the snapshot manager 58 at the timing when the activation process has advanced to the snapshot creation point. In other words, the point in time when the snapshot is created is the state in which a predetermined process of the activation process consisting of a plurality of processes has been completed, or the timing at which the process has been completed. Hereinafter, the end of a predetermined process or the timing of the end may be expressed as progressing to the time point of snapshot creation or passing the time point of snapshot creation. It should be noted that the activation processing unit 86 stops the activation process at the timing when the snapshot is created. Further, in the case of snapshot activation, the snapshot activation start instruction receiving unit 90 receives the snapshot activation start instruction from the snapshot manager 58, and performs continuous activation, which is activation processing after snapshot creation.

The snapshot manager 58 has a snapshot creation instruction section 92 and a snapshot activation start instruction section 94 . When the snapshot creation instruction unit 92 receives snapshot creation point passage notifications from all the applications 56 , it instructs the kernel 74 to create a snapshot.

The snapshot activation start instructing unit 94 instructs the application 56 to start snapshot activation in the case of snapshot activation.

Note that the snapshot manager 58 grasps the applications 56 installed in the operation unit 3 by reading a storage unit such as the eMMC 14 of the operation unit 3 or by inquiring of a program that controls the installation status of the applications 56. Also good. Alternatively, only the application 56 necessary for creating the snapshot may be specified among the plurality of applications installed in the operation unit 3 . In this case, when the snapshot creation instruction unit 92 receives a snapshot creation point-in-time notification from the specified application 56, it instructs the kernel 74 to create a snapshot, and the snapshot activation start instruction unit 94 instructs the snapshot activation start instruction unit 94 to perform snapshot activation. Then, the specified application 56 is instructed to start snapshot activation.

A snapshot creation activation selection unit 60 selects whether the activation from power-on is snapshot creation activation or snapshot activation. For example, the snapshot creation activation selection unit 60 selects whether activation from power-on is snapshot creation activation or snapshot activation using a DIP switch (DIP switch) or the like connected to the GPIO 28 . However, the method of selecting snapshot creation activation or snapshot activation is not limited to this. It is also possible to determine whether or not, select snapshot creation activation if it is the first activation, and select snapshot activation if it is not the first activation. A snapshot created by the snapshot creation unit 82 of the kernel 74 is stored in the snapshot storage unit 62 .

<Details of processing>
The operation unit 3 according to the present embodiment performs start-up processing from power-on according to the procedure shown in FIG. 3, for example. FIG. 3 is a flowchart of an example of a start-up process from power-on according to this embodiment.

In step S<b>11 , the operation unit 3 confirms whether the snapshot creation activation selection unit 60 has selected the activation process from power-on as snapshot creation activation or snapshot activation. If the selection of activation processing from power-on is snapshot creation activation, the operation unit 3 performs snapshot creation activation in step S13. Further, if the selection of the activation process from power-on is not snapshot creation activation, the operation unit 3 performs snapshot activation in step S14.

Activation of snapshot creation in step S13 is performed, for example, by a procedure as shown in FIG. FIG. 4 is a flowchart of an example of snapshot creation activation in step S13.

The boot loader 50 is activated in step S21. The startup operation control unit 72 of the boot loader 50 starts the startup operation of snapshot creation startup. In step S22, the activation operation control unit 72 loads the kernel 74 of the OS 52 and activates it. Kernel 74 boots OS 52 . Further, the process proceeds to step S23, and the kernel 74 activates the application activation unit 54. FIG.

Proceeding to step S24, the application activation unit 54 activates the snapshot manager 58 according to the setting file. The application activation unit 54 advances to step S25 and causes the application 56 to start activation processing according to the setting file. By the activation processing of the application 56 in step S25, the snapshot creation instruction unit 92 of the snapshot manager 58 issues a snapshot creation instruction to the kernel 74 at the timing when the activation processing of all the applications 56 has progressed to the point of snapshot creation. Therefore, the snapshot creation unit 82 of the kernel 74 can create a snapshot at the timing when the activation processing of all the applications 56 has progressed to the snapshot creation point in step S26.

The activation process of the application 56 in step S25 is performed according to the procedure shown in FIG. 5, for example. FIG. 5 is a flowchart of an example of the application activation process in step S25.

Proceeding to step S31, the activation processing unit 86 starts activation processing. The start-up processing unit 86 advances the start-up processing up to the point of time when the snapshot is created, and stops the start-up processing. When the activation processing by the activation processing unit 86 progresses to the snapshot creation point, the snapshot creation point passage notification unit 88 notifies the snapshot manager 58 of the snapshot creation point passage.

In step S33, the snapshot creation instructing unit 92 of the snapshot manager 58 waits until it receives snapshot creation point passage notifications from all the applications 56. FIG. Upon receipt of the notification of passage of the snapshot creation time point from all the applications 56, the snapshot creation instruction unit 92 advances to step S34 and instructs the kernel 74 to create a snapshot.

The snapshot creation unit 82 creates a snapshot at the timing of receiving a snapshot creation instruction from the snapshot manager 58 . Therefore, the operation unit 3 of the present embodiment can stably create a snapshot at the timing when the startup processing of all the applications 56 has progressed to the time point of snapshot creation.

By the way, in the image processing apparatus 1 according to the present embodiment, it is desirable to eliminate unnecessary device driver processing at the time of starting snapshot creation. This is because, in the image processing apparatus 1 according to the present embodiment, when the snapshot is activated, the method of activating the device according to the actual environment tends to be in a consistent activation state.

Therefore, in the image processing apparatus 1 according to the present embodiment, the device configuration and the device driver configuration of the image processing apparatus 1 are used so that the state at the time of starting snapshot creation does not depend on the activation state of the device of the image processing apparatus 1. A study was conducted for each driver. In the image processing apparatus 1 according to the present embodiment, the operation of the device processing included in boot loader activation in step S21 is changed as follows depending on whether snapshot creation is activated or snapshot activation.

Further, in the image processing apparatus 1 according to the present embodiment, the operation of the device driver process included in the OS activation in step S22 is changed as follows depending on whether snapshot creation is activated or snapshot activation is activated.

FIG. 6 is a flowchart of an example of boot loader startup in step S21. For example, the flowchart in FIG. 6 does not turn on the power of the PHY chip of the hub (HUB) at the time of starting snapshot creation, so that even if a USB device is connected, it is not physically recognized. By not turning on the PHY chip, the USB host driver itself can be initialized. Also, when the snapshot is activated, by turning on the power of the PHY chip of the hub, the connection of the USB device can be detected.

Proceeding to step S<b>51 , the startup operation control unit 72 of the boot loader 50 initializes the memory 18 and the CPU 22 . Proceeding to step S52, the startup operation control unit 72 performs each device process described later. Proceeding to step S53, the boot loader 50 starts the OS startup process.

In each device process in step S52, the startup operation control unit 72 initializes various devices including the USB host. In the initialization of the USB host, in step S56, it is determined whether or not it is a snapshot creation activation, and if it is a snapshot creation activation, the USB device is not physically recognized by not turning on the power of the PHY chip of the hub. make it

If it is not snapshot creation activation, the process proceeds to step S57, and the activation operation control unit 72 turns on the power of the PHY chip of the hub, thereby making it possible to detect the connection of the USB device. Power control of the PHY chip of the hub of the USB host is processed by the bootloader 50 because it is a simple power on/off operation.

FIG. 7 is a flowchart of an example of OS startup in step S22. For example, the flowchart in FIG. 7 prevents the device driver from becoming effective by not supplying power to the wireless LAN module when snapshot creation is activated. Also, when the snapshot is activated, the device driver is enabled by supplying power to the wireless LAN module.

Proceeding to step S61, the kernel 74 initializes the OS52. Proceeding to step S62, the kernel 74 performs each device driver process, which will be described later. Proceeding to step S63, the kernel 74 starts initial process startup.

In each device driver process in step S62, the kernel 74 initializes various device drivers including a wireless LAN driver and a touch panel driver. In the initialization of the wireless LAN driver, it is determined in step S67 whether or not snapshot creation is activated. If snapshot creation is activated, power is not supplied to the wireless LAN module so that the wireless LAN driver is not enabled. do.

If it is not snapshot creation activation, the process proceeds to step S68, and the kernel 74 supplies power to the wireless LAN module so that the wireless LAN module can be detected, and the device driver is initialized and enabled.

Further, the flowchart of FIG. 7 is started by invalidating the input detection of the touch panel 12 when snapshot creation is started. Also, when the snapshot is activated, input detection of the touch panel 12 is enabled and activated. Initialization of the touch panel driver in step S62 is performed, for example, as shown in the flowchart of FIG.

FIG. 8 is a flowchart of an example of initialization of the touch panel driver in step S62. In step S71, the kernel 74 initializes the touch panel 12 and the touch panel driver. In the initialization of the touch panel driver, it is determined in step S72 whether or not snapshot creation is activated. If it is a snapshot creation activation, the input detection of the touch panel 12 is invalidated and activated. If it is not snapshot creation activation, the process proceeds to step S73, and the kernel 74 enables input detection (interrupt) of the touch panel 12. FIG. Initialization of the wireless LAN driver shown in FIG. 7 and initialization of the touch panel driver shown in FIG. 8 are processed by the kernel 74 .

According to the boot loader function shown in FIG. 6 and the OS activation shown in FIG. , you can create configuration-neutral snapshots. For example, the image processing apparatus 1 may be connected to a fingerprint authentication device of a USB device as an additional option.

In such a case, in the image processing apparatus 1 according to the present embodiment, the fingerprint authentication device is not enabled when snapshot creation is started, and a snapshot can be created without enabling the device driver of the fingerprint authentication device. That is, in the image processing apparatus 1 according to the present embodiment, snapshots can be created without side effects such as memory monopoly by device drivers. In addition, in the image processing apparatus 1 according to the present embodiment, the fingerprint authentication device is enabled by snapshot activation, and the connection of the fingerprint authentication device is detected. can operate the device.

The snapshot activation in step S14 is performed according to the procedure of FIG. 9, for example. FIG. 9 is a flowchart of an example of snapshot activation in step S14.

The boot loader 50 is activated in step S81. The boot operation control unit 72 of the boot loader 50 starts the snapshot boot boot operation. In step S82, the activation operation control unit 72 loads the kernel 74 of the OS 52 and activates it. Kernel 74 boots OS 52 .

Proceeding to step S83, the snapshot activation operation control unit 84 of the kernel 74 develops the snapshot stored in the eMMC 14 in the memory 18 and performs hibernation activation. That is, in the memory 18, the memory 18 at the timing at which the activation process of the application 56 has progressed to the snapshot creation time is reproduced.

Proceeding to step S84, the snapshot activation operation control unit 84 matches functions dependent on the environment of the image processing apparatus 1 in accordance with the driver environment. The snapshot activation operation control unit 84 advances to step S85 to perform continuous activation, which is activation processing of the application 56 after the snapshot is created.

The continuation process of step S85 is performed according to the procedure shown in FIG. 10, for example. FIG. 10 is a flowchart of an example of the continuation process of step S85. When the snapshot activation start instructing unit 94 of the snapshot manager 58 determines that snapshot activation has started in step S91, the process proceeds to step S92.

In step S92, the snapshot activation start instructing unit 94 instructs the application 56 to start snapshot activation. The snapshot activation start instruction reception unit 90 of the application 56 waits for a snapshot activation start instruction from the snapshot manager 58 in step S93.

Upon receiving a snapshot activation start instruction from the snapshot manager 58, the activation processing unit 86 of the application 56 proceeds to step S94 and performs continuous activation, which is activation processing after snapshot creation.

<Summary>
According to this embodiment, in the operation unit 3 of the image processing apparatus 1 that performs hibernation startup using a fixed snapshot, the snapshot is created so as not to be affected by changes in the environment such as the presence or absence of peripheral devices and whether they are enabled or disabled. can be kept In the hibernation boot, after a fixed snapshot is developed in the memory 18, environment-dependent functions are matched according to the driver environment, and then the remaining boot processing, continuous boot, can be performed.

Therefore, according to the present embodiment, it is possible to provide the operation unit 3 that can flexibly cope with changes in the environment even with hibernation activation using a fixed snapshot.

[Second embodiment]
In the image processing apparatus 1 according to the first embodiment, an example has been described in which snapshot creation activation is performed before shipment from the factory, and snapshot activation is performed by normal power-on after shipment from the factory. The snapshot creation activation may be performed after shipment from the factory, or the user may select the snapshot creation activation when there is a change in the environment such as the addition of the application 56 or the addition of a peripheral device.

Further, the activation process of the additional application added (installed) to the operation unit 3 after the snapshot creation is performed from the start to the end of the activation process in the continuous activation in step S85. A snapshot that has already been created before being added may be continuously used.

[Third Embodiment]
In continuous activation, which is the activation process of the application 56 after the snapshot is created, shown in FIG. Since the third embodiment is the same as the first embodiment except for a part, description thereof will be omitted as appropriate. In the third embodiment, similarly to the first embodiment, the operation unit 3 of the image processing apparatus 1 initiates hibernation.

FIG. 11 is a functional configuration diagram of another example of the operation unit according to this embodiment. The operation unit 3 in FIG. 11 has a configuration in which a priority storage unit 64, a priority acquisition unit 93, and a priority change unit 95 are added to the operation unit 3 in FIG.

The snapshot creation point passage notification unit 88 of the application 56 notifies the snapshot manager 58 of its own priority at the timing when the activation process has advanced to the snapshot creation point. Note that the snapshot creation point passage notification unit 88 has priorities that are consistent so that dependencies and the like can be resolved between the applications 56 at the time of design.

The snapshot manager 58 has a configuration in which a priority acquisition unit 93 and a priority change unit 95 are added to the configuration of the snapshot manager 58 shown in FIG. The priority acquisition unit 93 receives notification of priority from the application 56 . The notified priority is stored in the priority storage unit 64 in association with the application 56 . Upon receiving priority notifications from all the applications 56, the snapshot creation instruction unit 92 instructs the kernel 74 to create a snapshot.

In the case of snapshot activation, the snapshot activation start instruction unit 94 issues snapshot activation start instructions in order according to the priority of the application 56 . A priority change unit 95 receives a priority change request from the user via the application 56 and changes the priority of the application 56 stored in the priority storage unit 64 .

FIG. 12 is a flow chart of another example of the application activation process in step S25. In step S101, the activation processing unit 86 of "application A" starts activation processing. The start-up processing unit 86 advances the start-up processing up to the point of time when the snapshot is created, and stops the start-up processing. When the activation process by the activation processing unit 86 progresses to the snapshot creation time point, the snapshot creation time passing notification unit 88 of "application A" notifies the snapshot manager 58 of its own priority "2" in step S102.

Further, in step S103, the activation processing unit 86 of "application B" starts activation processing. The start-up processing unit 86 advances the start-up processing up to the point of time when the snapshot is created, and stops the start-up processing. When the activation processing by the activation processing unit 86 progresses to the snapshot creation time point, the snapshot creation time passing notification unit 88 of “application B” notifies the snapshot manager 58 of its own priority “1” in step S104.

In step S<b>105 , the priority acquisition unit 93 of the snapshot manager 58 waits until it receives a priority notification from the application 56 . Upon receiving the priority notification from the application 56 , the priority acquisition unit 93 proceeds to step S<b>106 and inserts the notified priority into the priority queue of the priority storage unit 64 .

The processing of steps S105 to S107 is repeated until priority notifications are received from all applications 56. FIG. Upon receiving priority notifications from all the applications 56, the snapshot creation instruction unit 92 proceeds to step S108 and instructs the kernel 74 to create a snapshot.

FIG. 13 is a configuration diagram of an example of a priority queue. The priority queue represents the priority of applications 56 . For example, the priority queue in FIG. 13A is data storing the number of applications for each priority. An application 56 with a lower priority numerical value is preferentially activated. The priority queue of FIG. 13(b) is data in which information such as an application name and an application ID that identify the application 56 (application identification information) is associated with the priority of the application 56, and the priority of the application 56 is stored. is.

Also, the priority queue in FIG. 13C is data storing the priority of the application 56 according to the activation condition of each application 56 . In the case of the priority queue of FIG. 13C, the priority of the application 56 for which the start condition is not set is high, and the priority of the application 56 for which the start condition is set is low. Therefore, in the case of FIG. 13C, the application 56 for which the activation condition is set is activated after the application 56 for which the activation condition is not set.

FIG. 14 is a configuration diagram of an example of snapshot images and priority queues stored in the eMMC. The snapshot image includes the application 56 and the snapshot manager 58 expanded in the memory 18 when the snapshot creating unit 82 created the snapshot.

On the other hand, the priority queue shown in FIG. 13 is not included in the snapshot image, and is stored in a partition separate from the snapshot image of the eMMC 14 . When the snapshot is activated, the snapshot image of the eMMC 14 is developed in the memory 18 as the application 56 and snapshot manager 58 . The priority queue may not be developed in the memory 18 when the snapshot image is developed in the memory 18 .

FIG. 15 is a flow chart of another example of the continuation process of step S85. 15, the snapshot activation start instructing unit 94 of the snapshot manager 58 reads the priority queue from the eMMC 14 and expands it in the memory 18. In FIG. In steps S121 to S128, the snapshot activation start instructing unit 94 notifies the restart of the activation process in order from the application 56 with the highest priority according to the priority queue. Upon receiving the restart notification from the snapshot activation start instructing unit 94, the activation processing unit 86 of the application 56 performs continuous activation, which is activation processing after the snapshot creation time. The application 56 that has completed continuous activation returns a completion notification to the snapshot manager 58 .

The snapshot activation start instructing unit 94 of the snapshot manager 58 repeats the transmission of the restart notification and the reception of the completion notification shown in steps S121 to S128 until the completion notification is received from all the applications 56. FIG. Note that FIG. 15 shows an example in which the priority of "application B" is higher than the priority of "application A". For this reason, the snapshot activation start instructing unit 94 notifies "application B" of resumption before "application A".

Note that if there are a plurality of applications 56 with the same priority, the snapshot activation start instructing unit 94 may simultaneously transmit a restart notification to the plurality of applications 56 and cause them to continue activation in parallel. In addition, in order to reduce the load on the CPU 22, the number of applications 56 that are continuously activated in parallel is limited, or based on random or predetermined conditions (time required for continuous activation, required memory capacity, etc.). A time lag may be set for the restart notification.

FIG. 16 is a flowchart of an example of priority change processing. In steps S131 and S132, the priority change unit 95 of the snapshot manager 58 receives a change request from the user to change the priority of "application A" to "1". In step S133, the priority change unit 95 changes the priority of "application A" in the priority queue stored in the priority storage unit 64 based on the change request to change the priority of "application A" to "1". Change to "1". As a result, the snapshot activation start instructing unit 94 can notify the resumption of the activation process according to the changed priority queue.

According to the third embodiment, the order of continuous activation of applications 56 dependent on the order of activation in hibernation activation by fixed snapshot can be adjusted according to the priority of each application 56 . Further, according to the third embodiment, since continuous activation of a specific application 56 can be given priority in hibernation activation by a fixed snapshot, it is possible to expect shortening of the user's bodily sensation activation. etc. can be started with priority.

The invention is not limited to the specifically disclosed embodiments above, but various modifications and changes are possible without departing from the scope of the claims. For example, the image processing apparatus 1 is merely an example, and it goes without saying that there are various system configuration examples depending on the application and purpose.

The snapshot creation activation selection unit 60 is an example of selection means described in the claims. The boot loader 50, OS 52, and application activation unit 54 are examples of activation means. The snapshot creation instructing section 92 of the snapshot manager 58 is an example of creation instructing means. The snapshot creation unit 82 of the kernel 74 is an example of creation means.

The snapshot storage unit 62 is an example of storage means. The snapshot activation start instruction unit 94 of the snapshot manager 58 is an example of start instruction means. The priority acquisition unit 93 is an example of priority acquisition means. The priority changing unit 95 is an example of priority changing means.

REFERENCE SIGNS LIST 1 image processing device 2 main unit 3 operation unit 4 cable 10 SOC (System-on-a-chip)
12 touch panel 14 eMMC (embedded Multi Media Card)
16 LCD (Liquid Crystal Display)
18 memory 20 USB (Universal Serial Bus) function 22 CPU (Central Processing Unit)
24 MMC controller 26 LCD controller 28 GPIO (General Purpose Input/Output)
30 I2C (Inter-Integrated Circuit)
32 memory controller 50 boot loader 52 OS
54 application activation unit 56 application 58 snapshot manager 60 snapshot creation activation selection unit 62 snapshot storage unit 64 priority storage unit 70 snapshot creation activation determination unit 72 activation operation control unit 74 kernel 76 snapshot creation activation determination unit 78 snap Shot creation activation operation control unit 80 Snapshot creation instruction reception unit 82 Snapshot creation unit 84 Snapshot activation operation control unit 86 Startup processing unit 88 Snapshot creation point passage notification unit 90 Snapshot activation start instruction reception unit 92 Snapshot creation instruction Unit 93 Priority acquisition unit 94 Snapshot activation start instruction unit 95 Priority change unit

JP 2017-102584 A

Claims (9)

An information processing device that performs hibernation startup,
a selection means for selecting snapshot creation activation or snapshot activation;
activation means for starting activation processing of one or more applications when the snapshot creation activation is selected;
one or more applications for which a snapshot creation time point in the activation process is set, and which notifies after the activation process has proceeded to the creation time point;
creation instruction means for instructing creation of a snapshot after receiving the notifications from all of the applications;
creation means for creating a snapshot based on the creation instruction;
storage means for storing the snapshot;
start instruction means for reading the snapshot stored in the storage means when the snapshot activation is selected, and instructing the application to start the activation process after the time of creation, thereby completing the activation process of the application;
Information processing device having priority acquisition means for acquiring priority of one or more applications when the snapshot creation activation is selected;
The start instruction means instructs the applications to start the activation process after the time of creation in an order based on the priority of one or more applications acquired by the priority acquisition means when the snapshot creation activation is selected. 2. The information processing apparatus according to claim 1, wherein the activation process of the application is completed by performing. A priority changing means for changing the priority of one or more applications obtained by the priority obtaining means when the snapshot creation activation is selected, based on a change request received from a user. Item 3. The information processing apparatus according to item 2. the booting means includes a bootloader;
The boot loader controls a preset device among one or more devices targeted for device processing during boot processing so that the device is not recognized when the snapshot creation activation is selected, and the snapshot 4. The information processing apparatus according to any one of claims 1 to 3, wherein control is performed so as to recognize the device when shot activation is selected. the booting means includes an operating system;
The operating system activates a preset device driver among one or more device drivers to be subjected to device driver processing during boot processing of the operating system, when the snapshot creation boot is selected. 5. The information processing apparatus according to any one of claims 1 to 4, wherein control is performed so that the device driver is enabled when the snapshot activation is selected. Among one or more device drivers to be subjected to device driver processing during boot processing of the operating system, the operating system activates the function of the device driver for a preset device driver when the snapshot creation activation is selected. 6. The information processing according to claim 5, wherein control is performed so as not to enable at least one of them, and control is performed so that all the functions of the device driver are enabled when the snapshot activation is selected. Device. The additional application that has not been installed in the information processing apparatus when the snapshot creation activation is selected executes the activation process after the activation process start instruction is given when the snapshot activation is selected. 7. The information processing apparatus according to any one of claims 1 to 6. 8. The information processing apparatus according to claim 1, wherein the information processing apparatus functions as an operation section of an image processing apparatus. A booting method for an information processing device that performs hibernation booting, comprising:
selecting snapshot creation activation or snapshot activation;
initiating a launch process for one or more applications upon selection of said snapshot creation launch;
one or more applications for which a snapshot creation time point in the activation process is set, notifying after the activation process has proceeded to the creation time point;
After receiving the notifications from all of the applications, issuing a snapshot creation instruction;
a creation step of creating a snapshot based on the creation instruction;
storing said snapshot in a storage means;
a step of reading the snapshot stored in the storage means when the snapshot activation is selected, and instructing the application to start the activation process after the time of creation, thereby completing the activation process of the application;
Start method with

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