JP4755702B2 - Information processing apparatus and communication method - Google Patents

Description

  The present invention relates to data communication in an information processing apparatus that executes a plurality of virtual machines.

  A technique for operating a plurality of virtual machines in a physically single communication terminal is known (see Patent Documents 1-7). Patent Document 1 discloses a technique for acquiring a data file from a remote server when accessing a skeleton file stored in a terminal. Patent Document 2 discloses a technique for performing communication using a TCP / IP stack of a host OS in order to communicate with the outside. Patent Document 3 discloses a technology in which applications running on different virtual machines cooperate through communication. Japanese Patent Application Laid-Open No. 2004-133867 discloses a technique for identifying a virtual machine communicating with the outside and determining to which virtual machine a received packet is transmitted in virtualization software. Patent Document 5 discloses that in an apparatus having a service OS and a guest OS, a virtual machine on the service OS side establishes communication when an FTP connection request is received from an FTP client on the guest OS. Patent Document 6 discloses a technique for continuing the operation of another virtual machine when an error occurs in a certain virtual machine in an information processing apparatus having a plurality of virtual machines. Patent Document 7 discloses a technique for specifying a VMM that should process a privileged event and transferring control to that VMM when a privileged event occurs in an apparatus having a plurality of VMMs.

US Pat. No. 6,735,601 US Pat. No. 7,424,710 US Pat. No. 7,346,909 US Pat. No. 7,356,818 JP 2008-299617 A JP 2007-323142 A Special table 2007-505402

Patent Documents 1 to 7 disclose processing when an application on a virtual machine attempts to acquire data and fails for a server that is restricted to be accessible only through a specific connection destination. Not done.
The present invention provides a technique for automatically trying to acquire data from another virtual machine when data acquisition from one virtual machine is predicted to fail or when data acquisition fails. .

The present invention relates to a communication device, a program for realizing the first virtual machine and the second virtual machine, and operates on the second virtual machine, and receives data via the communication device and a specific connection destination. A program for realizing a first application to be acquired and a second application that operates on the first virtual machine and acquires data via a connection destination other than the connection destination and the communication device And a communication device including a storage device storing a program for storing and a processor performing processing according to the program stored in the storage device, wherein the first virtual machine is issued from the second application. Detection means for detecting an acquisition request for requesting acquisition of data via the apparatus, and requested by the acquisition request detected by the detection means When the first determination unit determines whether the first virtual machine can acquire data, and the first determination unit determines that the data cannot be acquired, the second virtual machine Requesting means for making a request to obtain the data, and when the second virtual machine receives the request, the second virtual machine has first obtaining means for obtaining the data via the communication device. An information processing apparatus characterized by the above is provided.
According to this information processing apparatus, even when it is determined that the first virtual machine cannot acquire data, acquisition of data by the second virtual machine is attempted.

The present invention also provides a communication device, a program for realizing the first virtual machine and the second virtual machine, and operates on the second virtual machine, via the communication device and a specific connection destination. A program for realizing a first application for acquiring data, and a second program that operates on the first virtual machine and acquires data via a connection destination other than the specific connection destination and the communication device A storage device that stores a program for realizing an application; and a processor that performs processing according to the program stored in the storage device, wherein the first virtual machine is output from the second application. Detection means for detecting an acquisition request for requesting acquisition of data via the communication device, and acquisition of data requested by the acquisition request. Second acquisition means for trying, first determination means for determining whether the second acquisition means has acquired the data requested by the acquisition request detected by the detection means, and the data cannot be acquired If the first determination means determines, the request requesting means requests the second virtual machine to acquire the data, and the second virtual machine issues the request. When received, the information processing apparatus includes a first acquisition unit that acquires the data via the communication apparatus.
According to this information processing apparatus, even when it is determined that the first virtual machine could not acquire data, acquisition of data by the second virtual machine is attempted.

In a preferred aspect, the acquisition request includes a character string for specifying the data, and the first virtual machine includes first storage means for storing information indicating a pattern of the character string, and the detection When the predetermined part or all of the character string included in the acquisition request detected by the means matches the information stored in the first storage means, the first determination means cannot acquire the data May be determined.
According to this information processing apparatus, the second virtual machine is automatically requested to acquire data related to an acquisition request including a character string of a specific pattern.

In another preferable aspect, the acquisition request includes a character string for specifying the data, and the first virtual machine is a location information indicating a location of data that the first virtual machine could not acquire. It has the 1st storage means which memorizes the history or the information which shows the history of the location information which shows the location of the data which the 2nd virtual machine has acquired, and is contained in the acquisition request detected by the detection means When a predetermined part or all of the character string matches information stored in the first storage unit, the first determination unit may determine that the data cannot be acquired.
According to this information processing apparatus, the first virtual machine includes a character string that matches the history of location information of data that could not be acquired or the location information history that indicates the location of data that could be acquired by the second virtual machine. Data acquisition related to the acquisition request is automatically requested to the second virtual machine.

In still another preferred aspect, when the first acquisition unit acquires the data, the second virtual machine transmits a result indicating that the data has been acquired to the first virtual machine. And when the first virtual machine receives the result from the second virtual machine, the first virtual machine is stored in the first storage unit using location information indicating a location of data related to the result. Update means for updating the existing history.
According to this information processing apparatus, the history stored in the first storage unit is rewritten according to the data acquisition result in the second virtual machine.

In still another preferred aspect, the second virtual machine has second storage means for storing information indicating a history of location information indicating the location of data acquired by the first acquisition means, The first virtual machine has request means for requesting the second virtual machine to determine whether or not to acquire the data requested by the acquisition request detected by the detection means, and the second virtual machine Receives the request, and has second determination means for determining whether a predetermined part or all of the location information of the data matches information stored in the second storage means, When the second determination unit determines that a predetermined part or all of the data location information matches the information stored in the second storage unit, the first acquisition unit stores the data May get
According to this information processing apparatus, the accuracy of determining whether or not data can be acquired is further improved.

In still another preferred aspect, the first virtual machine has second acquisition means for acquiring first data, and the first data acquired by the second acquisition means is second The first virtual machine has extraction means for extracting the location information of the second data from the first data, and the extraction means extracts the location information of the second data. When the predetermined part or all of the location information matches the information stored in the first storage unit, the first determination unit may determine that the second data cannot be acquired.
According to this information processing apparatus, whether or not the second data can be acquired is determined even if an acquisition request is not issued for the second data.

In still another preferred aspect, when the first determination unit does not determine that the second data cannot be acquired, the second acquisition unit may acquire the second data.
According to this information processing apparatus, data that can be acquired by the first virtual machine is acquired by the first virtual machine.

In still another preferred aspect, when the first data includes control information for configuring data, and the control information does not correspond to the first virtual machine, the request unit includes You may request the second virtual machine to obtain data.
According to this information processing apparatus, data corresponding to control information that does not correspond to the first virtual machine is attempted to be acquired by the second virtual machine.

In still another preferred aspect, the information processing apparatus includes a display device, and the second virtual machine displays the image according to the data acquired by the first acquisition unit on the display device. You may have a means.
According to this information processing apparatus, when data is acquired by the second virtual machine, an image according to the acquired data is automatically displayed.

In yet another preferred aspect, the information processing apparatus has a first operation mode in which communication via the communication device is permitted and a second operation mode in which communication via the communication device is not permitted. The request unit may request the second virtual machine to acquire the data when the operation mode is the first operation mode.
According to this information processing apparatus, useless requests for the second virtual machine are suppressed.

Furthermore, the present invention provides a communication device, a program for realizing the first virtual machine and the second virtual machine, and operates on the second virtual machine, via the communication device and a specific connection destination. A program for realizing a first application for acquiring data, and a program that operates on the first virtual machine and acquires data via a connection destination different from the specific connection destination and the communication device A communication method in an information processing apparatus, comprising: a storage device storing a program for realizing the application 2; and a processor that performs processing according to the program stored in the storage device, wherein the first virtual machine Detecting an acquisition request issued from the second application for requesting acquisition of data via the communication device; Determining whether the first virtual machine can acquire the data requested by the detected acquisition request, and determining that the first virtual machine cannot acquire the data; If the second virtual machine receives the request, the second virtual machine requests the second virtual machine to acquire the data, and receives the request via the communication device. And a step of obtaining.
According to this communication method, even when it is determined that the first virtual machine cannot acquire data, acquisition of data by the second virtual machine is attempted.

Furthermore, the present invention provides a communication device, a program for realizing the first virtual machine and the second virtual machine, and operates on the second virtual machine, via the communication device and a specific connection destination. A program for realizing a first application for acquiring data, and a program that operates on the first virtual machine and acquires data via a connection destination different from the specific connection destination and the communication device A communication method in an information processing apparatus, comprising: a storage device storing a program for realizing the application 2; and a processor that performs processing according to the program stored in the storage device, wherein the first virtual machine Detecting an acquisition request issued from the second application for requesting acquisition of data via the communication device; The first virtual machine attempting to acquire data requested by the acquisition request; and determining whether the first virtual machine has acquired the data requested by the detected acquisition request; If the first virtual machine determines that the data could not be acquired, the step of requesting the second virtual machine to acquire the data; and And receiving the request, obtaining the data via the communication device.
According to this communication method, even when it is determined that the first virtual machine could not acquire data, acquisition of data by the second virtual machine is attempted.

It is a figure which shows the hardware constitutions of the mobile telephone 10 which concerns on one Embodiment. 3 is a diagram showing a software configuration of the mobile phone 10. FIG. It is a figure which shows the function structure of the mobile telephone 10 which concerns on 1st Embodiment. It is a figure which illustrates the pattern information used by the determination part. It is a figure which illustrates the history information used by the judgment part. It is a flowchart which shows the determination process of availability. It is a flowchart which shows the acquisition process of content. It is a flowchart which shows the update process of log | history information. It is a figure which shows the function structure of the mobile telephone 10 which concerns on 2nd Embodiment. It is a flowchart which shows the determination process of availability. It is a flowchart which shows a process when the request for determination is received. It is a figure which shows a content acquisition process. It is a figure which shows the function structure of the mobile telephone 10 which concerns on 3rd Embodiment. It is a flowchart which shows a process when a 1st content is acquired. It is a flowchart when acquisition of the 2nd content is requested | required. It is a flowchart which shows a content acquisition process.

1. Overview of Hardware Configuration and Software Configuration FIG. 1 is a diagram illustrating a hardware configuration of a mobile phone 10 according to an embodiment. The mobile phone 10 is an example of an information processing apparatus according to the present invention. The cellular phone 10 includes a CPU (Central Processing Unit) 20, a memory 21, a storage device 30, a keypad 31, a display 32, a speaker 33, and a communication device 34.

  FIG. 2 is a diagram illustrating a software configuration of the mobile phone 10. The software of the mobile phone 10 includes virtualization software (Virtual Machine Manager, hereinafter referred to as “VMM”) 40, a virtual machine 41 (an example of a first virtual machine), and a virtual machine 42 (an example of a second virtual machine). And have. Hereinafter, the configuration of the mobile phone 10 will be described with reference to FIGS. 1 and 2.

  The CPU 20 (an example of a processor) is a processing device that executes software expanded on the memory 21. The memory 21 is a storage device that functions as a work area when the CPU 20 executes a program. The storage device 30 is a storage device, such as a flash memory, that stores programs such as the VMM 40, an OS (Operating System), an application, and data such as setting information and content. In this example, programs and data loaded from the storage device 30 are expanded on the memory 21 and executed by the CPU 20. Further, when the CPU 20 executes the VMM 40, a virtual machine 41 and a virtual machine 42 are formed inside the mobile phone 10.

  The keypad 31 is an input device that supplies a signal corresponding to a user operation to the CPU 20. User operations include pressing a single key, simultaneously pressing a plurality of keys, and the like. When the keypad 31 is operated, information indicating the operation is transmitted to the virtual machine 41 or the virtual machine 42 via the VMM 40. In the virtual machine 41 or the virtual machine 42, the OS transmits information indicating an operation to the application. As a result, processing such as menu selection and character input is performed according to the operation of the keypad 31 by the user.

  The display 32 is an output device that outputs the processing result of the application program executed in the virtual machine 41 or the virtual machine 42 as an image. When the user uses content (data) in the application, a screen corresponding to the content is displayed on the display 32. The user operates the keypad 31 while viewing the screen displayed on the display 32 and inputs information to the mobile phone 10. The speaker 33 is an output device that outputs the processing result of the application program executed in the virtual machine 41 or the virtual machine 42 as sound (sound, music, etc.).

  The communication device 34 is a device for communicating with an external terminal device. In this example, the communication device 34 includes an antenna for a mobile communication network, a communication processor, a wireless LAN (Local Area Network) adapter, and the like.

  The VMM 40 is a program for forming a plurality of virtual devices (virtual machines) on a physically single device (mobile phone 10) and operating them in parallel. In this example, the virtual machine 41 and the virtual machine 42 operate. Each of the virtual machine 41 and the virtual machine 42 includes a CPU, a memory, and peripheral devices virtualized by the VMM 40. Each of the virtual machine 41 and the virtual machine 42 has an OS. On this OS, middleware (software module) such as API (Application Programming Interface) group, TCP / IP (Transmission Control Protocol / Internet Protocol) stack, browser, etc. The application program runs. For example, VMware, Xen (registered trademark), Virtualbox, or the like is used as the VMM 40.

  The virtual machine 41 is a virtual machine corresponding to a so-called smartphone. A smart phone is a mobile phone that has excellent customizability like a PC, specifically, a mobile phone to which an application program of native code that can be directly executed by the CPU 20 (hereinafter referred to as “native code application”) can be added. Say. An example of a native code application is a browser. This browser can browse a site for general PC (Personal Computer) (hereinafter referred to as “PC site”) that is not specialized for mobile phones.

  In general, the security of a mobile phone is higher than the security of a PC. In recent years, services for downloading images, ringtones, music, etc. via a browser are known, but these downloaded data are restricted so that they cannot be taken out of the mobile phone 10 or tampered with. It is often done. In order to perform such restrictions, some types of web servers identify terminals so that only access from a mobile phone is allowed, and access from terminals other than mobile phones such as PCs is not allowed. ing. As a technique for this identification, there is a technique for identifying a terminal using an IP (Internet Protocol) address of a gateway (an example of a specific connection destination) operated by a mobile phone carrier. With such a technology, there is a website (hereinafter referred to as “mobile site”) that can be accessed only from a mobile phone.

  In a smartphone, it is possible to expand functions using a native code application that has a higher execution speed than a non-native code application. However, when a malicious application program such as a computer virus is executed, there is a risk that personal information such as an address book or contents will be erased, altered or leaked against the user's intention. Due to this danger, there is a situation of business operators and users who do not want to allow content download in smartphones, unlike non-smartphone mobile phones. For this reason, the browser of the smartphone is connected to the Internet via a different connection destination (or access point) different from the specific connection destination without going through the gateway for accessing the mobile site. That is, the virtual machine 41 is connected to the Internet without going through this gateway. In this configuration, the mobile site cannot be accessed from the smartphone.

  The virtual machine 42 is a virtual machine corresponding to a standard machine (non-smartphone). As described above, the virtual machine 42 accesses an external network via the gateway for accessing the mobile site. The virtual machine 42 has a storage area dedicated to the virtual machine 42 that cannot be accessed from the virtual machine 41 on the storage device 30. The content downloaded from the mobile site is stored in this storage area. Similarly, the virtual machine 41 has a storage area dedicated to the virtual machine 41 that cannot be accessed from the virtual machine 42 on the storage device 30.

2. First embodiment 2-1. Configuration FIG. 3 is a diagram illustrating a functional configuration of the mobile phone 10 according to the first embodiment. The virtual machine 41 includes a browser 50, a detection unit 201, a determination unit 202, a request unit 203, a determination unit 205, and an update unit 207. The virtual machine 42 has a browser 60. The browser 50 acquires web contents (HTML (HyperText Markup Language) data and related image files, audio files, etc.) from a web server (external device) connected to the Internet, and displays a screen according to the obtained web contents. 32 is an application program to be displayed on the virtual machine 41 and operates on the OS of the virtual machine 41. The storage unit 100 is a storage area dedicated to the virtual machine 41. The browser 60 is an application program for acquiring HTML data from the Internet and causing the display 32 to display a screen according to the acquired HTML data, and operates on the OS of the virtual machine 42. The browser 60 includes an acquisition unit 204 and a transmission unit 206. Hereinafter, “application” refers to a function realized (implemented) on the mobile phone 10 by the CPU 20 executing an application program and controlling a memory and a display. Functional components such as the detection unit 201, the determination unit 202, the request unit 203, the determination unit 205, and the update unit 207 are software modules. Hereinafter, the operation may be described with the functional component as a main component such as “the detection unit 201 performs ...”. This is because the CPU 20 executes a group of instructions included in the software module related to the detection unit 201. This means that the process is performed.

  The detection unit 201 detects a request (hereinafter referred to as “acquisition request”) for acquiring web content via the communication device 34 and the Internet. The acquisition request is issued from the browser 50. In this example, the acquisition request includes a URL (Uniform Resource Locator) as information indicating the location of the content (hereinafter referred to as “location information”). The URL is, for example, a character string “http://www.aaaaaa.co.jp/product/index.html”. The URL of this example is specified by the path name “/product/index.html” by connecting to a web server with the name (host name) “www.xxxx.co.jp” with the scheme “http”. Content (HTML file) to be acquired. The detection unit 201 detects that the browser 50 calls the external communication API in order to connect to the web server specified by the URL. The external communication API is an API for communicating with an external device of the mobile phone 10. Or the detection part 201 may detect that the link to the content was clicked as an acquisition request.

  The determination unit 202 determines whether the content corresponding to the acquisition request detected by the detection unit 201 has been acquired. The determination unit 202 makes this determination using an answer from the web server to the acquisition request. If the content can be acquired, the response from the web server includes the content. Therefore, the case where the content cannot be acquired means the case where the correct content is not included in the response from the web server. The process of acquiring content from the web server includes (1) specifying an IP address from the host name (name resolution by DNS (Domain Name Server)), (2) connecting to the web server using the IP address, (3 There are four stages: requesting content using a path name, and (4) sending content from a web server. Specifically, in the case where “content cannot be acquired”, corresponding to the above four steps, (1) host name to IP address conversion failure, (2) connection failure, (3) content cannot be acquired, (4) There are four examples in which the content describes that only access from a standard machine is allowed. In examples (1) to (3), the virtual machine 41 acquires an error message. In this case, the determination unit 202 determines that the content could not be acquired from the acquired error message. In example (4), the content can be obtained apparently, but an error is included as the content. The determination unit 202 inspects the content of the acquired content, and determines that the content cannot be acquired if an error is included.

  The determination unit 205 determines whether the virtual machine 41 can acquire the content requested by the acquisition request detected by the detection unit 201 (contents can be acquired). In other words, the determination unit 205 determines whether the requested content is to be acquired by the virtual machine 42. The determination unit 205 makes this determination using the acquisition request detected by the detection unit 201, not the response from the web server. That is, the determination unit 202 determines whether or not the virtual machine 41 can actually acquire the content, and the determination unit 205 predicts whether or not the virtual machine 41 can acquire the content. In this example, the determination unit 205 uses two criteria that the URL included in the acquisition request includes a character string of a predetermined pattern or matches the history of URLs that failed to acquire content in the past. It is determined whether or not content can be acquired.

  FIG. 4 is a diagram illustrating pattern information used in the determination unit 205. The pattern information is information indicating a character string pattern. The pattern information is stored in the storage unit 100. The pattern information is a character string that is often known to be included in the URL of the mobile site, for example, “imode”, “.mobi”, “mobile.”, “/ I /”, “/ m /”. And a list containing “/ mobile /”. The determination unit 205 determines whether all or a predetermined part of the URL included in the acquisition request matches the character string included in the pattern information, that is, the URL included in the acquisition request is the character string included in the pattern information. Inspect whether or not. When it is detected that the URL included in the acquisition request includes any of these character strings, the determination unit 205 determines that content for the acquisition request detected by the detection unit 201 cannot be acquired.

  FIG. 5 is a diagram illustrating history information used in the determination unit 205. The history information is information indicating a URL in which the content could not be acquired in the virtual machine 41 or a part or all of the URL in which the content could be acquired in the virtual machine 42 in the past predetermined period, a predetermined number of times, or all the past accesses. Say. In the example of FIG. 5, the scheme and host name are used as the history. The history information is stored in the storage unit 100. The determination unit 205 checks whether the URL included in the acquisition request includes any of the history (character string) included in the history information. When it is detected that the URL included in the acquisition request includes any of these histories, the determination unit 205 determines that content for the acquisition request detected by the detection unit 201 cannot be acquired.

  Refer to FIG. 3 again. The request unit 203 requests the virtual machine 42 to acquire content when the determination unit 202 determines that content cannot be acquired or when the determination unit 205 determines that content cannot be acquired. The VMM 40 has a software module for performing communication between the virtual machine 41 and the virtual machine 42 (hereinafter referred to as a “VM (Virtual Machine) communication mechanism”), and the VMM 40 uses the software module to communicate with the virtual machine 41. A request is sent to the virtual machine 42. This request includes information used for content acquisition, for example, the URL of the content. The inter-VM communication mechanism may be a software module different from the VMM 40.

  Upon receiving a request from the virtual machine 41, the acquisition unit 204 of the virtual machine 42 requests the web server to transmit content via the communication device 34 and the Internet. The acquisition unit 204 acquires a response to the content request from the web server.

  The transmission unit 206 transmits the result of content acquisition by the acquisition unit 204 to the virtual machine 41. The result is transmitted from the virtual machine 42 to the virtual machine 41 using the inter-VM communication mechanism. The “result” here includes at least information indicating whether the request has succeeded (that is, the content has been acquired) or has failed. This result also includes information for specifying a content acquisition request in the virtual machine 41. Furthermore, this result may include information indicating which of the four errors described in the determination unit 202 corresponds.

  The receiving unit 212 receives information transmitted from the virtual machine 42. When the reception unit 212 receives the result of content acquisition from the virtual machine 42, the update unit 207 updates the history information stored in the storage unit 100 according to the received result. If the result received from the virtual machine 42 indicates that the content has been acquired, the update unit 207 stores information stored as a history from the acquisition request related to the received result (in this example, the scheme and host name). To the history information.

2-2. Operation FIG. 6 is a flowchart showing processing for determining whether or not content can be acquired in the virtual machine 41. When the detection unit 201 detects an acquisition request, the flow of FIG. 6 is executed. In step S <b> 101, the determination unit 205 reads pattern information from the storage unit 100. In step S102, the determination unit 205 determines whether the URL included in the acquisition request includes a character string included in the pattern information. When it is determined that a predetermined part or all of the URL matches the character string of the pattern information (S102: YES), the determination unit 205 moves the process to step S107. When it is determined that the URL does not include the character string of the pattern information (S102: NO), the determination unit 205 moves the process to step S103.

  In step S <b> 103, the determination unit 205 reads history information from the storage unit 100. In step S104, the determination unit 205 determines whether the URL included in the acquisition request includes a character string included in the history information. When it is determined that a predetermined part or all of the URL matches the character string of the history information (S104: YES), the determination unit 205 moves the process to step S107. When it is determined that the URL does not include the character string of the history information (S104: NO), the determination unit 205 moves the process to step S105. The processing in steps S101 to S104 is executed before a content transmission request is transmitted from the mobile phone 10 to an external device to the web server.

  In step S105, the external communication API attempts to acquire content. That is, the web server is requested to transmit the content via the communication device 34 and the Internet. The external communication API receives a response to this request.

  In step S106, the determination unit 202 determines whether content has been acquired. If it is determined that the content could not be acquired (S106: NO), the determination unit 202 moves the process to step S107. When it is determined that the content has been acquired (S106: YES), the determination unit 202 ends the acquisition request determination process.

  In step S <b> 107, the request unit 203 requests the virtual machine 42 to acquire content. This request includes the URL of the content. When this request is made, the request unit 203 ends the process for determining whether or not the content can be acquired.

  In the request unit 203, an apparatus that transmits a content acquisition request is specified as follows. The request unit 203 stores an identifier of a transmission destination device in advance. The request unit 203 transmits a content acquisition request to the device specified by the stored identifier. As this identifier, for example, an ID given by the VMM 40 is used. In this case, the VMM 40 assigns an ID to each virtual machine and stores a list of the IDs. Alternatively, an IP address may be used as the identifier of the destination device. If the virtual machine 41 and the virtual machine 42 have a communication interface according to TCP / IP, an IP address is assigned to the virtual machine 41 and the virtual machine 42, which can be used as an identifier.

  FIG. 7 is a flowchart showing content acquisition processing in the virtual machine 42. Upon receiving a content acquisition request from the virtual machine 41, the acquisition unit 204 requests the web server to transmit the content via the communication device 34 and the Internet (step S201). The acquisition unit 204 receives a response to this request. This response includes the content when content acquisition is permitted, and includes an error message indicating one of the four errors described in the determination unit 202 or an error message such as a connection timeout in other cases. .

  In step S202, the acquisition unit 204 specifies the result of the content acquisition request. The acquisition unit 204 specifies that the result is successful when the content can be acquired, and specifies that the result is failure when the content cannot be acquired. In step S203, the transmission unit 206 transmits the identified result to the virtual machine 41 that is the content acquisition request source. Communication between VMs is used to transmit the result. When the result is transmitted, the transmission unit 206 ends the content acquisition process.

  FIG. 8 is a flowchart showing history information update processing in the virtual machine 41. When receiving the result of content acquisition from the virtual machine 42, the update unit 207 determines whether the content has been acquired (step S301). If it is determined that the content has been acquired (S301: YES), the update unit 207 proceeds to step S302. When it is determined that the content could not be acquired (S301: NO), the update unit 207 proceeds to step S303.

  In step S <b> 302, the update unit 207 updates the history information stored in the storage unit 100. Specifically, the update unit 207 extracts information (scheme and host name in this example) stored as a history from the URL of the acquired content, and adds the extracted information to the history information. When the history information is updated, the update unit 207 ends the history information update process.

  In step S <b> 303, the update unit 207 determines whether it is before executing content acquisition in the virtual machine 41. The virtual machine 41 stores a flag indicating whether the acquisition request that has been processed is transmitted to the external device or not yet transmitted. The update unit 207 refers to this flag to determine whether it is before executing content acquisition. When it is determined that it is before executing content acquisition (S303: YES), the update unit 207 proceeds to step S304. When it is determined that the content acquisition has been executed (S303: NO), the update unit 207 ends the flow of FIG.

  In step S304, the acquisition unit 204 requests the web server to transmit content via the communication device 34 and the Internet. The acquisition unit 204 receives a response to this request. If the requested content can be acquired by this response, the content is passed to the browser 50. When the content cannot be acquired, the acquisition unit 204 notifies the browser 50 that the content cannot be acquired.

  As described above, according to the present embodiment, when content cannot be acquired by the virtual machine 41 or when it is predicted that content cannot be acquired by the virtual machine 41, the virtual machine 41 is transferred to the virtual machine 42. Request acquisition of content (that is, request acquisition of content). The virtual machine 42 acquires content in response to a request from the virtual machine 41. Thereby, the user of the mobile phone 10 can acquire content by performing an operation input to the virtual machine 41 regardless of site access restrictions. The operability is improved as compared with the case where the configuration of the present embodiment is not provided. Further, if the request unit 203 requests the virtual machine 42 to acquire content only when the determination unit 202 determines that content could not be acquired, the next process is performed until the content acquisition request times out. It may not be possible. However, even in this case, before executing the content acquisition request, the determination unit 205 determines whether or not the content can be acquired based on the acquisition request. Thus, the next process can be executed without waiting for the timeout. In addition, before the content request is transmitted to the outside of the mobile phone 10, it is determined whether or not the content can be acquired, the content acquisition request is not made from the virtual machine 41, and the content acquisition request is made from the virtual machine 42. In this case, the number of packets (communication amount) flowing on the network is suppressed as compared with the case where the configuration of the present embodiment is not provided.

  The implementation of the functions described in the present embodiment is performed as follows, for example. In the virtual machine 41, middleware that provides an external communication API is modified from the conventional one. This middleware has an external communication API, a newly introduced virtual external communication API, a first determination API, a second determination API, and a request API. Hereinafter, this virtual external communication API is referred to as “virtual API”. The external communication API is a conventional external communication API. The virtual API is configured such that when the browser 50 calls the external communication API, the virtual API is called before the external communication API. The virtual API is an API for realizing or calling a function according to the present embodiment. The first determination API is an API that provides a function corresponding to the determination unit 202. The second determination API is an API that provides a function corresponding to the determination unit 205. The request API is an API that provides a function corresponding to the request unit 203. Hereinafter, the details of the operation will be described using the flow of FIG. 6 as an example.

  First, the browser 50 calls an external communication API in order to acquire content. When the browser 50 calls the external communication API, the virtual API is called instead of the external communication API. When called from the browser 50, the virtual API calls the second determination API. That is, in this example, the virtual API functions as the detection unit 201. The second determination API performs the processing of steps S101 to S104 in FIG. The second determination API calls the request API when the acquisition request matches the pattern information or the history information. If they do not match either, the second determination API returns the processing to the virtual API. The virtual API calls an external communication API.

  The external communication API performs processing such as name resolution by DNS, connection to a server, and content acquisition (step S105). The external communication API passes the content to the virtual API as a result if the content can be acquired, or the error message if the content cannot be acquired. The virtual API calls the first determination API to determine the result received from the external communication API. When the result includes the content, the first determination API checks the content to determine that only access from the standard machine is permitted. When it is described in the content that only access from the standard machine is permitted, or when a result including an error message is received from the external communication API, the first determination API calls the request API. When the result includes the content and the content that only the access from the standard machine is allowed is not described in the content, the first determination API answers the virtual API that there is no error. When receiving an answer indicating that there is no error, the virtual API sets the acquired content as a result of calling the external communication API.

  The request API requests the virtual machine 42 to acquire content (step S107). The request API replies to the virtual API that the virtual machine 42 has been requested. Upon receiving an answer from the request API, the virtual API sets the result as an error.

  The virtual API passes the set result to the browser 50. The browser 50 displays a screen corresponding to the acquired result (content or error).

3. Second embodiment 3-1. Configuration FIG. 9 is a diagram illustrating a functional configuration of the mobile phone 10 according to the second embodiment. Hereinafter, common reference numerals are used for elements common to the first embodiment, and description thereof is omitted. In the second embodiment, the mobile phone 10 includes a storage unit 101. The storage unit 101 is a storage area dedicated to the virtual machine 42. The storage unit 101 stores history information in the virtual machine 42. The history information in the virtual machine 42 is information indicating the URL history (successful acquisition request history) of the content that the virtual machine 42 could acquire. The browser 60 of the virtual machine 42 tries to acquire content from the web server when the user is operating the browser 60 of the virtual machine 42 in addition to receiving a request from the virtual machine 41. The history information in the virtual machine 42 includes the history according to these two cases. In the present embodiment, whether content can be acquired is determined using history information in the virtual machine 42 in addition to history information in the virtual machine 41.

  The determination unit 205 of the virtual machine 41 requests the virtual machine 42 to determine whether or not content acquisition is possible for the acquisition request detected by the detection unit 201.

  Upon receiving a request from the virtual machine 41, the determination unit 208 of the virtual machine 42 determines whether content should be acquired in the virtual machine 42, that is, whether or not content acquisition is possible in the virtual machine 42. For this determination, history information stored in the storage unit 101 is used. In addition to receiving a content acquisition request from the virtual machine 41, the acquisition unit 204 requests the web server to transmit the content according to the determination result of the determination unit 208.

3-2. Operation FIG. 10 is a flowchart showing acquisition request determination processing according to the second embodiment. The processing in steps S101 to S103 is as described in the first embodiment. In step S104, the determination unit 205 determines whether the URL included in the acquisition request matches the history information. If it is determined that the URL matches the history information (S104: YES), the determination unit 205 moves the process to step S107. When it is determined that the URL does not match the history information (S104: NO), the determination unit 205 moves the process to step S108.

  In step S <b> 108, the determination unit 205 requests (requests) the virtual machine 42 to determine whether or not content acquisition is possible. This request includes the URL of the content to be acquired. When this request is made, the determination unit 205 ends the flow of FIG.

  FIG. 11 is a flowchart illustrating processing when the virtual machine 42 receives a determination request. When the virtual machine 41 requests to determine whether or not content can be acquired, the flow of FIG. 11 is executed. In step S <b> 401, the determination unit 208 reads history information from the storage unit 101. In step S <b> 402, the determination unit 208 can acquire content in the virtual machine 41, specifically, the history included in the history information read from the storage unit 101 is the URL included in the request from the virtual machine 41. Is included (step S402). If it is determined that the content can be acquired in the virtual machine 41 (S402: YES), the determination unit 208 proceeds to step S403. When it is determined that the content cannot be acquired in the virtual machine 41 (S402: NO), the determination unit 208 replies to the virtual machine 41 via the transmission unit 206.

  In step S403, the determination unit 208 requests the acquisition unit 204 to acquire content. When the content acquisition is requested, the determination unit 208 ends the flow of FIG.

  FIG. 12 is a diagram illustrating content acquisition processing in the virtual machine 41. When receiving an answer from the virtual machine 42 that the content cannot be acquired from the external machine API, the external communication API tries to acquire the content (step S501). That is, the external communication API requests the web server to transmit content via the communication device 34. The external communication API receives a response to this request. In step S502, the determination unit 202 determines whether content has been acquired. When it is determined that the content could not be acquired (S502: NO), the determination unit 202 shifts the processing to step S503. When it is determined that the content has been acquired (S502: YES), the determination unit 202 ends the acquisition request determination process.

  In step S <b> 503, the request unit 203 requests the virtual machine 42 to acquire content. When this request is made, the request unit 203 ends the content acquisition process. The processing in steps S501 to S503 corresponds to the processing in steps S105 to S107 in the first embodiment. When acquisition of content is requested in step S107, S403, or S503, the acquisition unit 204 attempts to acquire content according to the flow of FIG.

  Even if the virtual machine 41 cannot determine that the content should be acquired by the virtual machine 42, the virtual machine 42 may determine that the content can be acquired by the virtual machine 42. According to the present embodiment, it is possible to more reliably determine whether or not the content can be acquired in the virtual machine 42 than in the case where the configuration of the present embodiment is not provided.

4). Third embodiment 4-1. Configuration FIG. 13 is a diagram illustrating a functional configuration of the mobile phone 10 according to the third embodiment. In the third embodiment, when the mobile phone 10 acquires the first content, the mobile phone 10 extracts a character string (HTML tag) including location information (URL of the second content) included in the first content. The mobile phone 10 determines whether or not the second content can be acquired using the extracted character string. This process is performed when the first content is acquired, and is performed regardless of whether there is a request for acquiring the second content. Hereinafter, common reference numerals are used for elements common to the first embodiment, and description thereof is omitted.

  The extraction unit 209 of the virtual machine 41 extracts a character string including the URL of the second content from the content (first content) acquired by the browser 50. Now, the case where the content is web content including an HTML file will be described as an example. HTML files often include HTML tags that indicate links to other web content. This link contains the URL of another web content. When the user selects another web content link on the browser 50, the browser 50 generates a content acquisition request using the URL included in the selected link. Furthermore, the browser 50 acquires content using the generated acquisition request. When the web content is acquired, the extraction unit 209 extracts a character string including the URL of the link regardless of whether or not the link included in the web content is selected. That is, it is possible to extract the URL before the link is selected. When the web content includes a plurality of links, the extraction unit 209 extracts a plurality of sets of character strings.

  In this example, the extraction unit 209 extracts a single character string including a URL from the HTML file. Here, “one-delimited character string” refers to one HTML tag. For example, when the HTML file includes an HTML tag “<a href="http://www.aaaaaa.co.jp/mn.main">”, the extraction unit 209 determines that “<a href =" http "@ www.aaaaaa.co.jp / mn.main"> "is extracted. In another example, when the HTML file includes an HTML tag “<a href="http://www.aaaaaa.co.jp/mn.main" accesskey="1">", the extraction unit 209 , “<a href="http://www.aaaaaa.co.jp/mn.main" accesskey="1">" is extracted.

  The determination unit 205 determines whether or not the virtual machine 42 can acquire content for the URL extracted by the extraction unit 209. This determination is performed in the same manner as the acquisition request determination in the first embodiment. When the extraction unit 209 extracts a plurality of URLs, the URLs to be processed are specified one by one in accordance with a predetermined rule, and the target URLs are determined. The determination unit 205 temporarily stores, in a cache, information that specifies an acquisition request for content to be acquired in the virtual machine 42, that is, the URL of the content determined to be acquired in the virtual machine 42. When the content acquisition request is detected by the detection unit 201, the determination unit 205 refers to the cache without referring to the pattern information and history information in the storage unit 100, and determines whether or not the content can be acquired in the virtual machine 42. To do. When there are a plurality of URLs determined to be acquired in the virtual machine 42, the determination unit 205 stores the plurality of URLs in a cache. Since the cache is provided inside the virtual machine 41 in the memory 21, the determination unit 205 can refer to the cache at a higher speed than when the cache is provided outside the virtual machine 41.

  The acquisition unit 210 requests the web server to transmit the content via the communication device 34 when the determination unit 205 does not determine that the content should be acquired by the virtual machine 42.

  In the present embodiment, the information processing apparatus 10 has an operation mode (hereinafter referred to as “self mode”) for turning off a communication function for communicating with an external apparatus via the communication apparatus 34. The self mode is used for the purpose of suppressing power consumption, for example. When the operation mode of the information processing apparatus 10 is the self mode, even if the virtual machine 42 is requested to acquire content, the content cannot be acquired. That is, the request is wasted. In addition, extra power may be consumed, and the advantages of the self mode are diminished. Therefore, in the present embodiment, the request unit 203 does not request content acquisition from the virtual machine 42 when the operation mode of the information processing apparatus 10 is in the self mode.

  The request unit 203 acquires information indicating the operation mode of the information processing apparatus 10 by, for example, making an inquiry about the operation mode to the virtual machine 42. Alternatively, each time the virtual machine 42 changes the operation mode, information indicating the operation mode at that time may be transmitted to the virtual machine 41. Alternatively, a software module such as the VMM 40 other than the virtual machine 41 and the virtual machine 42 monitors the operation mode of the information processing apparatus 10, and the virtual machine 41 acquires information indicating the operation mode of the information processing apparatus 10 from this software module. May be.

  The display unit 211 displays an image according to the content acquired by the acquisition unit 204 on the display 32. The fact that the acquisition unit 204 (virtual machine 41) has acquired content requires that the virtual machine 41 becomes active and the screen of the browser 60 is displayed on the display 32. When the content can be acquired, the display unit 211 activates the virtual machine 42 and performs control so that the screen of the browser 60 is displayed on the display 32.

4-2. Operation FIG. 14 is a flowchart showing processing when the virtual machine 41 acquires the first content. When the virtual machine 41 acquires content via the communication device 34, the flow of FIG. 14 is executed.

  In step S <b> 601, the determination unit 205 determines whether the character string extracted by the extraction unit 209 includes control information used by the virtual machine 42. “Control information used in the virtual machine 42” refers to information for controlling a unique function of the virtual machine 42. For example, in the HTML tag “<a href="http://www.aaaaaa.co.jp/mn.main" accesskey="1">", the part "accesskey =" 1 "" is the keypad 31. When the “1” key is pressed, it is a character string (information) for providing a function for selecting this link, and is unique to the virtual machine 42. The virtual machine 41 stores a list of character strings related to the unique functions of the virtual machine 42 in the storage unit 101, and the determination unit 205 refers to this list to obtain control information used by the virtual machine 42 in the character string. Determine if it is included. Alternatively, the determination unit 205 may cause the browser 50 to interpret this character string, and may determine that the character string includes control information used by the virtual machine 42 if the browser 50 cannot interpret the character string. If it is determined that the control information used in the virtual machine 42 is included (S601: YES), the determination unit 205 moves the process to step S602. If it is determined that the control information used in the virtual machine 42 is not included (S601: NO), the determination unit 205 moves the process to step S604.

  In step S602, the request unit 203 determines whether communication is permitted in the information processing apparatus 10, that is, whether the operation mode of the information processing apparatus 10 is the non-self mode. When it is determined that communication is permitted in the information processing apparatus 10 (S602: YES), the request unit 203 requests the virtual machine 42 to acquire content (step S603). If the information processing apparatus 10 determines that communication is not permitted (S602: NO), the request unit 203 ends the flow of FIG.

  In step S604, the extraction unit 209 extracts a character string from the acquired content. In steps S605 to S608, the determination unit 205 collates the character string with the pattern information and history information as in steps S101 to S104 of the first embodiment. If the extracted character string includes a portion that matches the pattern information or the history information (S606 or S608: YES), the determination unit 205 moves the process to step S609. If the extracted character string does not include a portion that matches the pattern information and the history information (S608: NO), the determination unit 205 moves the process to step S610.

  In step S <b> 609, the determination unit 205 stores a character string that includes a portion that matches the pattern information or history information in the cache as information for specifying a link for which content is to be acquired in the virtual machine 42. In step S610, the determination unit 205 stores, in the cache, information indicating a determination result as to whether or not content should be acquired in the virtual machine 42 together with information for specifying a link.

  FIG. 15 is a flowchart illustrating processing when the virtual machine 41 requests acquisition of the second content. In step S109, the determination unit 205 determines whether the content requested to be acquired (second content) is requested by selecting a link included in the first content. In the browser 50, the second content can be acquired not only by selecting a link but also by inputting a URL. Here, the processing is different depending on whether the link included in the first content is selected or not. When it determines with it being a request | requirement by selecting a link (S109: YES), the determination part 205 transfers a process to step S110. If it is determined that the request is not a request by selecting a link (S109: NO), the determination unit 205 moves the process to step S101.

  In step S <b> 110, the determination unit 205 refers to the cache and determines whether the link is a determination result that the virtual machine 42 should acquire content. If it is determined that the content is to be acquired in the virtual machine 42 (S110: YES), the determination unit 205 moves the process to step S111. When it is determined that the content is to be acquired in the virtual machine 42 (S110: NO), the determination unit 205 moves the process to step S111.

  In step S111, the determination unit 205 refers to the cache and determines whether or not the virtual machine 42 should acquire content for the link. When it is determined that the content should be acquired in the virtual machine 42 (S111: YES), the determination unit 205 moves the process to step S112. When it is not determined that the content should be acquired in the virtual machine 42 (S111: NO), the determination unit 205 moves the process to step S101.

  The processing in steps S101 to S105 is the same as that described in the first embodiment. If it is determined in step S106 that content could not be acquired, the determination unit 202 proceeds to step S112.

  In step S112, the request unit 203 determines whether communication is permitted in the information processing apparatus 10, that is, whether the operation mode of the information processing apparatus 10 is the non-self mode. If it is determined that communication is permitted in the information processing apparatus 10 (S112: YES), the request unit 203 proceeds to step S107. If the information processing apparatus 10 determines that communication is not permitted (S112: NO), the request unit 203 ends the flow of FIG.

  FIG. 16 is a flowchart showing content acquisition processing in the virtual machine 42. The processing in steps S201 to S202 is the same as that described in the first embodiment. When the process of step S202 ends, the acquisition unit 204 moves the process to step S204.

  In step S204, the acquisition unit 204 determines whether the content has been acquired. If it is determined that the content has been acquired (S204: YES), the acquisition unit 204 proceeds to step S205. If it is determined that the content could not be acquired (S204: NO), the acquisition unit 204 proceeds to step S203.

  In step S205, the display unit 211 displays a screen according to the content on the display 32.

  As described above, according to the present embodiment, the determination as to whether or not content should be acquired in the virtual machine 42 is performed even when there is no content acquisition request. If the determination is made prior to the content acquisition request, it is only necessary to confirm the determination result. Compared to the case of not having the configuration of the present embodiment, the virtual machine 42 has received the content acquisition request. It is possible to shorten the time required to request content acquisition.

5. Other Embodiments The present invention is not limited to the above-described embodiments, and various modifications can be made. Hereinafter, some modifications will be described. Two or more of the modifications described below may be used in combination.

  The specific mounting method of the function according to the first embodiment is not limited to that described in the embodiment. In the first embodiment, an example of newly introducing middleware including a new API and an external communication API corresponding to the detection unit 201, the determination unit 202, the request unit 203, and the determination unit 205 has been described. The above functions may be implemented. For example, the external communication API itself may be improved and a function as the detection unit 201, the determination unit 202, the request unit 203, and the determination unit 205 or a function for calling these functions may be added. Or you may add to the browser 50 the function as a detection part 201, the determination part 202, the request | requirement part 203, the determination part 205, or the function to call these functions. Further alternatively, an application program or OS other than the browser 50 may have a function as the detection unit 201, the determination unit 202, the request unit 203, or the determination unit 205 or a function for calling these functions. In short, as long as the virtual machine 41 can realize the functions described in the embodiment as a whole, any form of implementation may be used. The same applies to the virtual machine 42, the second embodiment, the third embodiment, and other embodiments.

  In the first to third embodiments, the virtual machine 41 may not have either the determination unit 202 or the determination unit 205. For example, when the determination unit 202 is not provided, the process of step S106 in FIG. 6 is omitted. In short, the request unit 203 only needs to request the virtual machine 42 to acquire content when it is predicted that content cannot be acquired or when content cannot be acquired.

  In the first to third embodiments, the storage unit 100 may not have any one of the pattern information and the history information. For example, when the storage unit 100 does not have pattern information, the processes in steps S101 and S102 in FIG. 6 are omitted. The same applies to the case where the storage unit 100 does not have history information.

  In the first to third embodiments, the transmission unit 206 may not have a function of transmitting a result indicating that the acquisition unit 204 has acquired the content. In this case, the virtual machine 41 may not have the update unit 207.

  In the first embodiment, the update unit 207 may update the history information stored in the storage unit 100 according to the result of content acquisition by the virtual machine 41 instead of the content acquisition result by the virtual machine 42. Good. In this case, when the content cannot be acquired (step S304) in the virtual machine 41, the update 207 updates the history information.

  In the second embodiment, the virtual machine 41 does not have to include the determination unit 202 and the determination unit 205. That is, the determination as to whether or not the content should be acquired by the virtual machine 42 (the determination as to whether or not the content can be acquired by the virtual machine 41) is performed only by the virtual machine 42, and the virtual machine 41 responds to the result according to the result. A content acquisition request may be issued to the user.

In the third embodiment, the virtual machine 42 may not have the display unit 211.
Alternatively, the virtual machine 42 according to the first and second embodiments may include the display unit 211.

  In the third embodiment, branching of processing according to control information unique to the virtual machine 42 may not be performed. That is, the process of step S601 in FIG. 14 may be omitted. Alternatively, the determination of whether the HTML tag includes control information may be performed as part of the determination using the pattern information (steps S101 and S102 in FIG. 15). In this case, the pattern information includes a character string indicating control information unique to the virtual machine 42. Alternatively, in the mobile phone 10 according to the first embodiment or the second embodiment, when the control information unique to the virtual machine 42 is in the HTML tag, the virtual machine 42 may be requested to acquire content.

  In the third embodiment, the virtual machine 42 may not have the self mode as the operation mode. Alternatively, the virtual machine 42 according to the first and second embodiments may have a self mode as an operation mode. In this case, the same process as step S112 in FIG. 15 may be performed.

  The sharing of functions between software or software modules is not limited to that described in the embodiment. As long as the virtual machine 41 or the virtual machine 42 as a whole can realize the functions described in the embodiment, the division of functions of the individual software modules may be any. For example, in the third embodiment, the example in which the determination unit 205 determines whether the HTML tag includes control information unique to the virtual machine 42 has been described. However, this determination may be performed by another software module other than the determination unit 205. In another example, the browser 60 has the acquisition unit 204 and the transmission unit 206 in the third embodiment. However, another application other than the browser 60 may include at least one of the acquisition unit 204 and the transmission unit 206 and operate in cooperation with the browser 60. In yet another example, the example in which another application program other than the browser 50 includes the detection unit 201, the determination unit 202, the request unit 203, the determination unit 205, and the update unit 207 has been described in the first embodiment. However, the browser 50 may have at least one of these functions and operate in cooperation with this application program. Moreover, the detection unit 201, the determination unit 202, the request unit 203, the determination unit 205, and the update unit 207 may be implemented as separate programs. Although not specifically illustrated, the same applies to other embodiments and other functional elements.

  An application that performs data communication via the Internet on the virtual machine 41 and the virtual machine 42 is not limited to a browser. Similarly, data acquired via the Internet is not limited to web content. Other applications such as mailers and other data such as emails may be used. When the data is an electronic mail, the information indicating the location of the data is a mail server address or a mail address.

DESCRIPTION OF SYMBOLS 10 ... Mobile phone, 20 ... CPU, 21 ... Memory, 30 ... Storage device, 31 ... Keypad, 32 ... Display, 33 ... Speaker, 34 ... Communication device, 40 ... VMM, 41 ... Virtual machine, 42 ... Virtual machine, DESCRIPTION OF SYMBOLS 50 ... Browser, 60 ... Browser, 100 ... Storage part, 101 ... Storage part, 201 ... Detection part, 202 ... Determination part, 203 ... Request part, 204 ... Acquisition part, 205 ... Determination part, 206 ... Transmission part, 207 ... Update unit, 208 ... determination unit, 209 ... extraction unit, 210 ... acquisition unit, 211 ... display unit, 212 ... reception unit

Claims (13)

A communication device;
A program for realizing a first virtual machine and a second virtual machine and a first application that operates on the second virtual machine and acquires data via the communication device and a specific connection destination And a program for realizing a second application that operates on the first virtual machine and acquires data via a connection destination different from the specific connection destination and the communication device A stored storage device;
A processor that performs processing according to a program stored in the storage device;
Have
The first virtual machine is
Detection means for detecting an acquisition request issued from the second application for requesting acquisition of data via the communication device;
First determination means for determining whether the first virtual machine can acquire the data requested by the acquisition request detected by the detection means;
Requesting means for requesting the second virtual machine to acquire the data when the first determination means determines that the data cannot be acquired;
The second virtual machine is
An information processing apparatus comprising: a first acquisition unit configured to acquire the data via the communication device when receiving the request. A communication device;
A program for realizing a first virtual machine and a second virtual machine and a first application that operates on the second virtual machine and acquires data via the communication device and a specific connection destination And a program for realizing a second application that operates on the first virtual machine and acquires data via a connection destination different from the specific connection destination and the communication device A stored storage device;
A processor that performs processing according to a program stored in the storage device;
Have
The first virtual machine is
Detection means for detecting an acquisition request issued from the second application for requesting acquisition of data via the communication device;
Second acquisition means for attempting to acquire data requested by the acquisition request;
First determination means for determining whether the second acquisition means has acquired the data requested by the acquisition request detected by the detection means;
Request means for requesting the second virtual machine to acquire the data when the first determination means determines that the data could not be acquired;
The second virtual machine is
An information processing apparatus comprising: a first acquisition unit configured to acquire the data via the communication device when receiving the request. The acquisition request includes a character string for specifying the data,
The first virtual machine has first storage means for storing information indicating a character string pattern;
When a predetermined part or all of the character string included in the acquisition request detected by the detection unit matches the information stored in the first storage unit, the first determination unit stores the data The information processing apparatus according to claim 1, wherein it is determined that the information cannot be acquired. The acquisition request includes a character string for specifying the data,
The first virtual machine has a history of location information indicating the location of data that could not be acquired by the first virtual machine, or a history of location information indicating the location of data that could be acquired by the second virtual machine. First storage means for storing information indicating
When a predetermined part or all of the character string included in the acquisition request detected by the detection unit matches the information stored in the first storage unit, the first determination unit The information processing apparatus according to claim 1, wherein the information processing apparatus determines that it cannot be acquired. The second virtual machine has transmission means for transmitting a result indicating that the data has been acquired to the first virtual machine when the first acquisition means acquires the data,
When the first virtual machine receives the result from the second virtual machine, the first virtual machine updates the history stored in the first storage unit using the location information indicating the location of the data related to the result. The information processing apparatus according to claim 4, further comprising an update unit configured to perform update processing. The second virtual machine has second storage means for storing information indicating a history of location information indicating the location of data acquired by the first acquisition means,
The first virtual machine has request means for requesting the second virtual machine to determine whether or not to acquire the data requested by the acquisition request detected by the detection means,
Upon receiving the request, the second virtual machine determines whether a predetermined part or all of the location information of the data matches information stored in the second storage unit Having means,
When the second determination unit determines that a predetermined part or all of the location information of the data matches the information stored in the second storage unit, the first acquisition unit includes the data The information processing apparatus according to any one of claims 1 and 3-5. The first virtual machine has second acquisition means for acquiring first data;
The first data acquired by the second acquisition means includes location information indicating the location of the second data;
The first virtual machine has extraction means for extracting location information of the second data from the first data,
When the predetermined part or all of the location information extracted by the extraction unit matches the information stored in the first storage unit, the first determination unit cannot acquire the second data The information processing apparatus according to any one of claims 1 and 3-6. The information processing apparatus according to claim 7, wherein when the first determination unit does not determine that the data cannot be acquired, the second acquisition unit acquires the second data. The first data includes control information for configuring the data;
The said request | requirement means requests | requires the said 2nd virtual machine to acquire the said data, when the said control information does not respond | correspond to the said 1st virtual machine. The information processing apparatus described in 1. Having a display device;
The said 2nd virtual machine has a display means to display the image according to the data acquired by the said 1st acquisition means on the said display apparatus. The term in any one of Claims 1-9 characterized by the above-mentioned. The information processing apparatus described. A first operation mode in which communication through the communication device is permitted, and a second operation mode in which communication through the communication device is not permitted,
11. The request unit according to claim 1, wherein when the operation mode is the first operation mode, the request unit requests the second virtual machine to acquire the data. The information processing apparatus according to item. A communication device, a program for realizing a first virtual machine and a second virtual machine, a first program that operates on the second virtual machine and acquires data via the communication device and a specific connection destination And a second application that operates on the first virtual machine and acquires data via a connection destination different from the specific connection destination and the communication device A communication method in an information processing apparatus having a storage device storing a program for storing and a processor that performs processing according to the program stored in the storage device,
The first virtual machine detecting an acquisition request issued from the second application requesting acquisition of data via the communication device;
Determining whether the first virtual machine can acquire the data requested by the detected acquisition request;
Requesting the second virtual machine to obtain the data if it is determined that the first virtual machine cannot obtain the data;
When the second virtual machine receives the request, the second virtual machine acquires the data via the communication device. A communication device, a program for realizing a first virtual machine and a second virtual machine, a first program that operates on the second virtual machine and acquires data via the communication device and a specific connection destination And a second application that operates on the first virtual machine and acquires data via a connection destination different from the specific connection destination and the communication device A communication method in an information processing apparatus having a storage device storing a program for storing and a processor that performs processing according to the program stored in the storage device,
The first virtual machine detecting an acquisition request issued from the second application requesting acquisition of data via the communication device;
The first virtual machine attempting to acquire data requested by the acquisition request;
Determining whether the first virtual machine has acquired the data requested by the detected acquisition request;
If the first virtual machine determines that the data could not be obtained, requesting the second virtual machine to obtain the data;
When the second virtual machine receives the request, the second virtual machine acquires the data via the communication device.

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