JP5344893B2 - Information processing apparatus, information processing method, and information processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing apparatus preventing shortening of a service life of a nonvolatile memory by suppressing writing in the nonvolatile memory to maintain performance equivalent to writing in a volatile memory during execution of an application program. <P>SOLUTION: The information processing apparatus having the nonvolatile memory and the volatile memory includes an instruction receiving means for receiving instructions to write a file from an application program; a determining means for determining which of the nonvolatile memory and volatile memory the file is to be written in based on the classification of the application program; and a writing means for writing the file in the volatile memory when writing in the volatile memory is determined by the determining means. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an information processing apparatus, an information processing method, and an information processing program having a nonvolatile memory and a volatile memory.

  Some information processing apparatuses such as mobile phone terminals have a nonvolatile memory and a volatile memory. Generally, for data that is desired to be stored for a long period of time, the content (data) stored in the volatile memory is transferred to the nonvolatile memory.

  As a technology related to this, for example, Patent Document 1 has an object to provide means capable of preventing loss of game data. The game machine includes a CPU, and a game cartridge is mounted on the game machine. The CPU is electrically connected to a ROM in the game cartridge and a flash memory having two backup areas, and game data generated according to the progress of the game is stored (updated) in the work memory, for example, a user The latest game data is written to the backup area in accordance with the instruction, and when the CPU writes the latest game data, the backup area for storing the game data with the older writing time out of the two backup areas is to be backed up. Select as an area, and to the selected backup area If you can not write, it prohibits overwriting the game data written just before, can leave the previous generation of game data are disclosed.

For example, Patent Document 2 protects information such as information, data, and program updates inside a device even if the power is accidentally shut down, and normal before power is turned off after power is restored. The latest information is automatically restored, and the information management unit of the information processing device controls the RAM as the main storage means, the NVRAM as the nonvolatile storage means, and the SD card as the auxiliary storage means. The NVRAM, which is a non-volatile storage means, and the SD card, which is an auxiliary storage means, store information alternately. If the data on the RAM, which is the main storage means, is erased due to a power failure, etc. Based on the stored information, it is disclosed that the information management unit restores the latest normal data before the occurrence of power interruption.
JP 2007-275611 A JP 2006-127287 A

However, in such a conventional technique, it is not assumed that an application program created by an unspecified person is executed by an information processing apparatus having a nonvolatile memory. For example, when an interface for using the nonvolatile memory without any limitation is provided in the application execution environment, there is a possibility that the application program frequently writes a file to the nonvolatile memory. In such a case, there are the following problems.
(1) When the performance is not so high as in a portable information processing apparatus, there is a possibility that a significant performance degradation may occur due to file read / write processing with respect to the nonvolatile memory.
(2) In addition, when a file is read from or written to the nonvolatile memory at a high frequency, the influence on the lifetime of the nonvolatile memory cannot be ignored.

  The present invention has been made paying attention to such problems, and suppresses writing to the non-volatile memory, and maintains the same performance as writing to the volatile memory during execution of the application program. It is an object of the present invention to provide an information processing apparatus, an information processing method, and an information processing program that prevent shortening of the life of a volatile memory.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] An information processing apparatus having a nonvolatile memory and a volatile memory, an instruction receiving unit that receives a file write instruction from an application program, and the nonvolatile memory or A determination unit configured to determine in which of the volatile memories the file is to be written; and a writing unit that writes the file into the volatile memory when the determination unit determines that the file is to be written to the volatile memory. The type of the application program is whether it is a public type application program, and the judgment of the public type application program is as follows: (1) Prepare a table storing the names of non-public type application programs in advance Anyway, write instructions for the file If the application program that has been performed is not registered in the table, it is determined that the application program is a public application program. (2) A predetermined name or a predetermined instruction is determined for a non-public application program. If it is a name other than that, or if there is no predetermined instruction, it is determined as a public application program. (3) In the case of an application program that does not have a predetermined electronic certificate, a public application is determined. An information processing apparatus characterized by being determined by any one of the programs .

  [2] The determination unit according to [1], wherein the determination unit determines that the file is to be written to the volatile memory if the application program is a public application program. Information processing device.

  [3] Confirmation means for confirming the existence of a file stored in the volatile memory, and transfer for transferring the file from the volatile memory to the nonvolatile memory when the confirmation means confirms that the file exists. The information processing apparatus according to [1] or [2], further comprising means.

  [4] The transfer means generates a temporary file in the nonvolatile memory when transferring the file from the volatile memory to the nonvolatile memory, and the temporary file is transferred to the nonvolatile memory after the transfer ends. The information processing apparatus according to [3], wherein the file is a file written by an application program.

  [5] The information processing apparatus according to [3] or [4], wherein the transfer unit performs transfer periodically or when the execution of the application program ends or is temporarily stopped. .

[6] An information processing apparatus having a nonvolatile memory and a volatile memory, wherein an instruction receiving unit that receives a file reading instruction from an application program, and the file is based on the type of the application program Determining means for determining whether the data is stored in the volatile memory or the volatile memory, and when the determination means determines that the data is stored in the volatile memory, the information is stored in the volatile memory. The application program type is whether it is a public type application program, and the judgment of the public type application program is (1) an application that is not public type in advance. Prepare a table that stores the program names If the application program that has instructed file reading is not registered in the table, it is determined as a public application program. (2) A non-public application program has a predetermined name or a predetermined instruction. If the name is other than that, or if there is no predetermined instruction, it is determined as a public application program. (3) In the case of an application program that does not have a predetermined electronic certificate Is an information processing apparatus that is determined by any one of the following .

  [7] Volatile memory file management means for storing the name and location of the file stored in the volatile memory, and the name and location of the file stored in the nonvolatile memory A non-volatile memory file management means for storing the file, and when the judging means is a public application program as the type of the application program, the file is either the volatile memory or the non-volatile memory. The information processing apparatus according to [6], wherein the information is stored using the volatile memory file management unit or the non-volatile memory file management unit.

[8] An information processing method performed by an information processing apparatus having a nonvolatile memory and a volatile memory, based on an instruction receiving step of receiving a file write instruction from an application program, and the type of the application program, A determination step of determining whether to write the file to the nonvolatile memory or the volatile memory; and if the determination step determines to write to the volatile memory, the file is written to the volatile memory A writing step , wherein the type of the application program is a public application program, and the judgment of the public application program is as follows: Use stored table If the application program that has instructed to write the file is not registered in the table, it is determined as a public application program. (2) A non-public application program has a predetermined name or It is determined that a predetermined instruction is given, and if it is a name other than that, or if there is no predetermined instruction, it is determined as a public application program. (3) An application that does not have a predetermined electronic certificate An information processing method characterized in that, in the case of a program, it is determined by any one of determining as a public application program .

[9] An information processing method performed by an information processing apparatus having a nonvolatile memory and a volatile memory, based on an instruction receiving step of receiving a file reading instruction from an application program, and the type of the application program, A determination step of determining whether the file is stored in the non-volatile memory or the volatile memory; and if the determination step determines that the file is stored in the volatile memory, the volatile memory A step of reading the file stored therein , wherein the type of the application program is whether or not it is a public application program, and the judgment of the public application program is (1) Application program that is not open to the public (2) Application program that is not a public type application program is determined if the application program that has instructed file reading is not registered in the table. Is determined to give a predetermined name or a predetermined instruction, and if it is any other name or there is no predetermined instruction, it is determined as a public application program. (3) A predetermined electronic certificate An information processing method characterized in that, in the case of an application program that does not have a certificate, it is determined by any one of determining that the application program is a public application program .

[10] An information processing program that operates in an information processing apparatus having a nonvolatile memory and a volatile memory, wherein the information receiving apparatus receives an instruction to write a file from an application program, and the application Based on the type of program, a determination unit that determines whether to write the file to the nonvolatile memory or the volatile memory, and if the determination unit determines to write to the volatile memory, the volatile The application program functions as a writing means for writing the file into the volatile memory, and whether the type of the application program is a public application program or not, and the judgment of the public application program is as follows: Name of non-type application program If the application program that has instructed to write the file is not registered in the table, it is determined as a public application program. (2) Non-public application programs (3) A predetermined electronic certificate is determined to be a public application program when a predetermined name or a predetermined instruction is determined and the name is other than that or when there is no predetermined instruction. An information processing program characterized in that, in the case of an application program that it does not have, it is determined by any one of determining as an open-type application program.

[11] An information processing program that operates on an information processing apparatus having a nonvolatile memory and a volatile memory, wherein the information receiving apparatus receives an instruction to read a file from an application program, and the application Based on the type of program, it is determined that the file is stored in the non-volatile memory or the volatile memory, and the determination unit determines that the file is stored in the volatile memory. In the case where the file stored in the volatile memory functions as a reading unit , and the type of the application program is whether it is a public application program, and the public application program (1) App that is not public A table storing application program names is prepared, and if an application program that has instructed file reading is not registered in the table, it is determined as an open application program. (2) Not open In the application program, it is determined that a predetermined name or a predetermined instruction is given, and if it is a name other than that or if there is no predetermined instruction, it is determined as a public application program. An information processing program characterized in that, in the case of an application program that does not have an electronic certificate, it is determined by any one of the determination as a public application program.

The present invention operates as follows.
In the information processing apparatus, the information processing method, and the information processing program according to the present invention, the instruction receiving unit receives a file write instruction from the application program, and the determining unit is configured to determine whether the nonvolatile memory or the It is determined in which volatile memory the file is to be written, and the writing means writes the file in the volatile memory when the determining means determines that the volatile memory is to be written. As a result, writing to the nonvolatile memory can be suppressed, and performance equivalent to writing to the volatile memory can be maintained during execution of the application program, and shortening of the lifetime of the nonvolatile memory can be prevented.
In another invention, the instruction receiving unit receives a file reading instruction from the application program, and the determining unit determines whether the file is stored in the nonvolatile memory or the volatile memory based on the type of the application program. If it is determined by the determining means that the file is stored in the volatile memory, the reading means reads the file stored in the volatile memory. Thus, even if the file is written by the information processing apparatus, the information processing method, and the information processing program that suppress writing to the nonvolatile memory, the file is stored in the nonvolatile memory or the volatile memory for the application program. It can be read regardless of where it is.

According to the information processing apparatus, the information processing method, and the information processing program according to the present invention, the writing to the nonvolatile memory is suppressed, and the performance equivalent to the writing to the volatile memory is maintained when the application program is executed, The lifetime of the nonvolatile memory can be prevented from being shortened. In addition, operability and convenience are further improved for the user of the information processing apparatus.
In the invention of reading a file, even if the file is written by an information processing apparatus, an information processing method, and an information processing program that suppress writing to the nonvolatile memory, the file is not stored for the application program. It can be read regardless of whether it is in non-volatile memory or volatile memory.

Hereinafter, an example of a preferred embodiment for realizing the present invention will be described with reference to the drawings.
FIG. 1 shows a conceptual module configuration diagram of a configuration example of the present embodiment.
The module generally refers to a component such as software or hardware that can be logically separated. Therefore, the module in the present embodiment indicates not only a module in a program but also a module in a hardware configuration. Therefore, the present embodiment also serves as an explanation of a program, a system, and a method. However, for the sake of explanation, the words “store”, “store”, and equivalent terms are used. However, when the embodiment is a program, these terms are controlled to be stored in the storage device. I mean. In addition, the modules correspond almost one-to-one with the functions. However, in mounting, one module may be composed of one program, or a plurality of modules may be composed of one program. A plurality of programs may be used. The plurality of modules may be executed by one computer, or one module may be executed by a plurality of computers in a distributed or parallel environment. Note that one module may include other modules. In the following, “connection” includes not only physical connection but also logical connection (data exchange, instruction, reference relationship between data, etc.).
Further, the system or apparatus includes a configuration in which a plurality of computers, hardware, devices, and the like are connected via a network and the like, and includes a case where the system or device is realized by a single computer, hardware, devices, and the like. The term “predetermined” is used in addition to a predetermined meaning, including the meaning according to the situation / state at that time or the situation / state until then.
Hereinafter, a mobile phone will be mainly exemplified and described as the information processing apparatus. A file is a set of data configured for the purpose of processing by an information processing apparatus, but includes a file composed of one unit of data and a file without data (content).

  As shown in FIG. 1, the information processing apparatus according to the present embodiment includes an application module 110, an application execution control module 120, a volatile memory 130, and a nonvolatile memory 140.

The application module 110 is connected to the application execution control module 120 and is an application program that is executed on the application execution control module 120. This application program includes a public application program.
An open type application program operates in an execution environment in which specifications are disclosed, and is created by an unspecified person. Since it is an unspecified person, an application program is not necessarily created after fully understanding the execution environment. Therefore, the operation by this public application program does not always use the information processing apparatus efficiently. Further, a person who creates a public application program may include a person who has malicious intent, and an application program created by such a person frequently uses, for example, the nonvolatile memory 140. There is also a possibility that reading / writing data on the information processing apparatus deteriorates the performance of the information processing apparatus.
Conversely, a non-public application program is created by a specific person (a telecommunications carrier that supplies a mobile phone as an information processing device, a so-called third party that obtains permission from the telecommunications carrier). .

  The volatile memory 130 is connected to the application execution control module 120. The volatile memory 130 is used as a heap memory or the like. File writing is generally written in the non-volatile memory 140, but in this embodiment, file writing by a public application program is once written in the volatile memory 130 instead of the non-volatile memory 140.

  The nonvolatile memory 140 is connected to the application execution control module 120. Generally, it is a memory as a part of a file system, that is, a file is read and written. Here, the nonvolatile memory is a semiconductor memory in which data is not lost even when the power is turned off, and data can be rewritten. Specifically, an EPROM (Erasable and Programmable ROM), an EEPROM (Electrically Erasable and Programmable ROM), and the like are applicable. Compared with the volatile memory 130, the read / write speed is slow, and the lifetime depends on the number of times of writing.

The application execution control module 120 is connected to the application module 110, the volatile memory 130, and the nonvolatile memory 140. The application execution control module 120 performs file read / write processing on the volatile memory 130 or the nonvolatile memory 140 based on a file read / write instruction from the application module 110.
The application execution control module 120 includes a control module 121, a volatile memory control module 122, a transfer module 123, and a nonvolatile memory control module 124.

The control module 121 receives a file write instruction from the application module 110. Then, based on the type of the application module 110, it is determined whether to write the file in the volatile memory 130 or the nonvolatile memory 140. If it is determined that the volatile memory 130 is to be written according to the determination result, the volatile memory control module 122 is controlled to write the file to the volatile memory 130. Further, when it is determined to write to the nonvolatile memory 140 according to the determination result, the nonvolatile memory control module 124 is controlled to write the file to the nonvolatile memory 140.
The file write instruction is file write using a file system, and the application module 110 is intended to write to the nonvolatile memory 140.

If the application program type is a public application program, it may be determined that the file is written to the volatile memory 130. If the application program is not a public type, it may be determined that the file is written to the nonvolatile memory 140.
The control module 121 determines whether the file read / write instruction is from a public application program or a non-public application program as follows.
(1) Prepare a table in advance that stores the names of application programs that are not public. If the application program that has instructed to read and write the file is not registered in the table, it is determined as a public application program.
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not open, and if there is no other name or predetermined instruction, it is determined as a public application program.
(3) Using an electronic certificate or the like, it is determined whether or not it is a registered application program, and in the case of an application program that does not have a predetermined electronic certificate or the like, a public application program to decide.

Further, the control module 121 confirms the existence of a file stored in the volatile memory 130. If the file is confirmed to exist, the control module 121 controls the transfer module 123 to remove the file from the volatile memory 130 in a nonvolatile manner. To the memory 140. When the file is transferred from the volatile memory 130 to the nonvolatile memory 140, the temporary file is generated as a temporary file in the nonvolatile memory 140, and the temporary file is written by the application module 110 after the transfer is completed. A file. That is, a so-called temporary file is temporarily copied to an alias file in the non-volatile memory 140, and when the duplication is completed, the original file name is rewritten to make a so-called master file. This is a redundant configuration in which backup of a file is retained in preparation for a file write failure that may occur because writing to the nonvolatile memory 140 is slow.
Further, this transfer process may be performed periodically, or when the execution of the application module 110 is completed or suspended (suspended). That is, the file is written into the nonvolatile memory 140 asynchronously with the writing instruction by the application module 110.

  Further, the control module 121 receives a file reading instruction from the application module 110. Based on the type of the application module 110, it is determined whether the file is stored in the volatile memory 130 or the nonvolatile memory 140. If it is determined that the data is stored in the volatile memory 130 based on the determination result, the volatile memory control module 122 is controlled to read a file stored in the volatile memory 130. If it is determined that the data is stored in the nonvolatile memory 140 based on the determination result, the nonvolatile memory control module 124 is controlled to read a file stored in the nonvolatile memory 140.

Further, in the control module 121, a file management table for volatile memory that stores the name and position of the file stored in the volatile memory 130, and a file stored in the nonvolatile memory 140. May have a file management table for a non-volatile memory that stores the name and the stored location.
When the application module 110 is a public application program as the type of the application module 110, the control module 121 determines whether the file is stored in the nonvolatile memory 140 or the volatile memory 130. You may make it judge using a management table or the file management table for non-volatile memories. If the application program is not a public type, it may be determined that the application program is stored in the nonvolatile memory 140 and read using the file management table for the nonvolatile memory.

The file management table for volatile memory and the file management table for nonvolatile memory may have the same data configuration.
The file management table may store the date and time of storage and the storage capacity in addition to the file name and the stored location. For example, the file management table 500 shown in the example of FIG. FIG. 5 is an explanatory diagram showing an example of the data structure of the file management table 500. The file management table 500 includes NO. A column 501, a file name column 502, a storage date / time column 503, a storage location column 504, and a storage capacity column 505. NO. The column 501 stores a uniquely identifiable code of a file stored in the volatile memory 130 or the nonvolatile memory 140. The file name column 502 stores a file name. The storage date / time column 503 stores the date / time (including year, minute, second, etc.) when the file is written in the volatile memory 130 or the nonvolatile memory 140. The storage location column 504 stores a storage location (address) in the volatile memory 130 or the nonvolatile memory 140. The storage capacity column 505 stores the storage capacity of the file.
The file management table 500 is provided with a column indicating whether it is a volatile memory or a nonvolatile memory, and the file management table for the volatile memory and the file management table for the nonvolatile memory are provided by one file management table 500. You may make it serve as.

The volatile memory control module 122 reads / writes a file from / to the volatile memory 130 under the control of the control module 121.
The transfer module 123 transfers files from the volatile memory 130 to the nonvolatile memory 140 under the control of the control module 121.
The nonvolatile memory control module 124 reads / writes a file from / to the nonvolatile memory 140 under the control of the control module 121.

FIG. 2 is an explanatory diagram showing the process according to the present embodiment more conceptually.
The relationship between the application program 210, the heap memory 230, and the file system 240 is shown. 1, the application program 210 mainly corresponds to the application module 110, the heap memory 230 mainly corresponds to the combination of the application execution control module 120 and the volatile memory 130, and the file The system 240 mainly corresponds to a combination of the application execution control module 120 and the nonvolatile memory 140. However, the example of FIG. 2 is a conceptual explanation for facilitating understanding, and the application program 210 can read and write files without distinction between the heap memory 230 and the file system 240.

  When the application program 210 writes a file, it first writes to the heap memory 230. The application program 210 cannot directly write to the file system 240. Then, the file stored in the heap memory 230 is transferred to the file system 240 at a predetermined timing such as periodically. When the application program 210 reads a file, the file is read from the heap memory 230 or the file system 240. That is, when a file is read before being transferred from the heap memory 230 to the file system 240, the file is read from the heap memory 230. After being transferred from the heap memory 230 to the file system 240, the file is read. When performed, the file system 240 is read.

FIG. 3 is an explanatory diagram illustrating a mobile phone which is an example of an information processing apparatus.
The information processing apparatus in which this embodiment is implemented may be a foldable mobile phone 300 as shown in FIG. The mobile phone 300 is, for example, a character input device for inputting characters in response to a request such as a telephone number or an application program, a microphone 305 that can input voice so as to have a function as a telephone, a speaker 304 that can output voice. A key 302, an antenna 303 for transmitting and receiving radio waves for data communication, a display 301 for displaying characters related to the application program as a result of character input by the key 302, a display by the display module 120, and the like. The mobile phone 300 incorporates a CPU that executes application programs, non-volatile memory, volatile memory, hardware such as a communication circuit, and the like. A program is stored in a memory, and software and hardware resources cooperate to implement an information processing apparatus.

FIG. 4 is a flowchart illustrating an example of a writing process performed by the control module 121 according to the present embodiment.
In step S402, it is determined whether the write instruction received from the application module 110 is a file write. If it is a file write instruction, the process proceeds to step S404; otherwise, the process proceeds to step S412.
In step S404, the application module 110 that has instructed to write the file determines whether or not it is a public application program. If it is a public application program, the process proceeds to step S406; otherwise, the process proceeds to step S414.
In step S406, the volatile memory control module 122 is controlled to write the file to the volatile memory 130 that is a heap memory.

In step S408, information related to the file written in the file management table 500 for the volatile memory 130 is registered. That is, the file name is stored in the file name column 502, the stored date and time is stored in the storage date and time column 503, the storage location in the volatile memory 130 is stored in the storage location column 504, and the storage capacity of the file is stored in the storage capacity column 505.
In step S410, a “file system write flag” indicating that a file transfer from the volatile memory 130 to the nonvolatile memory 140 is necessary is set.
In step S412, since the file is not written, data is written to the volatile memory 130 which is a heap memory.
In step S414, the non-volatile memory control module 124 is controlled to write a file by an application program that is not a public type. Therefore, the file is written to the non-volatile memory 140 using a normal file system.

FIG. 6 is a flowchart illustrating an example of read processing by the control module 121 according to the present embodiment.
In step S602, it is determined whether the read instruction received from the application module 110 is a file read. If the instruction is to read a file, the process proceeds to step S604; otherwise, the process proceeds to step S608.
In step S604, the application module 110 that has instructed to read the file determines whether or not it is a public application program. If it is a public application program, the process proceeds to step S606; otherwise, the process proceeds to step S610.

In step S606, it is determined using the file management table 500 for the volatile memory 130 whether or not the file is in the volatile memory 130 which is a heap memory. That is, as a result of searching the file management table 500 for the volatile memory 130, if there is a corresponding file, the process proceeds to step S608, and otherwise, the process proceeds to step S610.
In step S608, data or a file is read from the volatile memory 130 which is a heap memory.
In step S610, a file is read from the nonvolatile memory 140 using a normal file system.

FIG. 7 is a flowchart showing an example of transfer processing by the control module 121 of the present embodiment. This transfer process is performed periodically or when the execution of the application module 110 is completed or temporarily stopped.
In step S702, it is determined whether a file is written in the volatile memory 130 that is a heap memory. If there is, the process proceeds to step S704, otherwise, the process ends (step S799). For example, the determination is made based on whether or not the file system write flag is set in step S410 in the flowchart shown in the example of FIG. Alternatively, the determination may be made based on whether there is a file in the file management table 500 for the volatile memory 130.
In step S <b> 704, it is determined using the file management table 500 for the nonvolatile memory 140 whether the file name of the file in the volatile memory 130 is already in the nonvolatile memory 140. If there is a master file (if there is a master file), the process proceeds to step S706; otherwise, the process proceeds to step S716.
In step S <b> 706, the file in the volatile memory 130 is transferred to the nonvolatile memory 140 using the transfer module 123. In this case, however, the temporary file is written in the nonvolatile memory 140.

In step S708, it is determined whether or not the transfer process in step S706 has ended normally. If the process ends normally, the process proceeds to step S710. Otherwise, the process proceeds to step S718.
In step S710, the master file (the file with the same name already in the nonvolatile memory 140) is deleted. When version management is performed, the master file is managed as an old version file.
In step S712, the file written as a temporary file in step S706 is changed to a master file. For example, the file name is changed from the temporary file name to the master file name. When version management is performed, the temporary file is managed as the latest version of the master file. Then, the line of the corresponding file in the file management table 500 for the nonvolatile memory 140 is corrected.

In step S714, the file transferred from the volatile memory 130 which is a heap memory is deleted. Then, the corresponding line is deleted from the file management table 500 for the volatile memory 130.
In step S 716, the file in the volatile memory 130 is transferred to the nonvolatile memory 140 using the transfer module 123. The transferred file in the non-volatile memory 140 becomes the master file. Then, the corresponding file line is added to the file management table 500 for the nonvolatile memory 140.
In step S718, error processing is performed when the process has not ended normally. For example, the process of step S706 is repeated, or a message indicating that the process has not been completed normally is displayed on the display.
When all the files in the volatile memory 130 have been transferred, the file system write flag is reset.

  Note that the hardware configuration of the computer on which the program according to the present embodiment is executed is a general computer as shown in FIG. 8, specifically a computer that is built in the mobile phone 300. . CPU 810 for executing programs such as control module 121, volatile memory control module 122, transfer module 123, and nonvolatile memory control module 124, RAM 830 which is a volatile memory for storing the program and data (file), and the present computer A ROM 820 storing a program for starting the program, an NVRAM 840 such as an EPROM or EEPROM that is a nonvolatile memory, and a key, a keyboard, a mouse, and the like, data is input by an operator or data is input to a liquid crystal display or the like. UI / F850 that outputs and interfaces with an operator, HD860 that is an auxiliary storage device, a communication line I / F870 for connection to a communication network, and a removable digital digital card (SD) card, etc. A removable media reader writer 880 to read and write to the media, and, and a bus 890 for exchanging data by connecting them. A plurality of these computers may be connected to each other via a network. Note that a removable medium may be used as the nonvolatile memory 140.

  In the description of the above-described embodiment, a mobile phone has been mainly described as an example of an information processing apparatus. However, data such as a PHS (Personal Handyphone System), which is an information processing apparatus in which the application execution control module 120 is mounted. The present invention can also be applied to a communication terminal, a PDA (Personal Digital Assistant), a game terminal, a navigation system, and the like. Note that an information processing apparatus equipped with the present embodiment is more suitable for a case of a device having a relatively lower performance (such as a hard disk or the like) than a PC (personal computer) or the like, such as a portable information processing terminal. .

When the control module 121 writes a file to the volatile memory 130 in response to a file write instruction from the application module 110, whether the file name that matches the file name is in the file management table 500 for the volatile memory 130. It is determined whether or not it is in the file management table 500 for the nonvolatile memory 140. That is, the file management table 500 for the non-volatile memory 140 is also checked despite the file being written to the volatile memory 130.
If there is a match in either one of the tables, it is written as overwritten or returned as an error. If there is no match in both tables, write as a new file. As a result, when writing to the volatile memory 130, it is possible to prevent the file name from being duplicated with the file in the nonvolatile memory 140 even though it is a new file rather than being overwritten.

Note that the described program can be stored in a recording medium, and in that case, it can be understood as an invention of a “computer-readable recording medium on which a program is recorded”.
The “computer-readable recording medium on which a program is recorded” refers to a computer-readable recording medium on which a program is recorded, which is used for program installation, execution, program distribution, and the like.
The recording medium is, for example, a digital versatile disc (DVD), which is a standard established by the DVD Forum, such as “DVD-R, DVD-RW, DVD-RAM,” and DVD + RW. Standard “DVD + R, DVD + RW, etc.”, compact disc (CD), read-only memory (CD-ROM), CD recordable (CD-R), CD rewritable (CD-RW), Blu-ray disc ( Blu-ray Disc (registered trademark), magneto-optical disk (MO), flexible disk (FD), magnetic tape, hard disk, read-only memory (ROM), electrically erasable and rewritable read-only memory (EEPROM), flash Includes memory, random access memory (RAM), etc. .
The program or a part of the program can be recorded on the recording medium and stored or distributed. Also, by communication, for example, a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a wired network used for the Internet, an intranet, an extranet, etc., or wireless communication It can be transmitted using a transmission medium such as a network or a combination thereof, and can also be carried on a carrier wave.
Furthermore, the program may be a part of another program, or may be recorded on a recording medium together with a separate program.

It is a figure which shows the module structural example of one embodiment of this invention. It is explanatory drawing which shows more conceptually the process by this Embodiment. It is explanatory drawing which shows the mobile telephone which is an example of information processing apparatus. It is a flowchart which shows the example of a writing process by this Embodiment. It is explanatory drawing which shows the example of a data structure of a file management table. It is a flowchart which shows the example of a reading process by this Embodiment. It is a flowchart which shows the example of a transfer process by this Embodiment. It is a block diagram which shows the hardware structural example of the computer which implement | achieves this Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 110 ... Application module 120 ... Application execution control module 121 ... Control module 122 ... Volatile memory control module 123 ... Transfer module 124 ... Non-volatile memory control module 130 ... Volatile memory 140 ... Non-volatile memory

Claims (11)

An information processing apparatus having a nonvolatile memory and a volatile memory,
An instruction receiving means for receiving a file write instruction from the application program;
Determining means for determining whether to write the file in the nonvolatile memory or the volatile memory based on the type of the application program;
A writing means for writing the file to the volatile memory when the judging means determines to write to the volatile memory ;
The type of the application program is whether it is a public application program, and the determination of the public application program is as follows:
(1) A table storing names of non-public application programs is prepared in advance. If an application program that has instructed file writing is not registered in the table, it is determined as a public application program. ,
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not a public type, and if it is any other name or there is no predetermined instruction, it is determined as a public type application program. ,
(3) If the application program does not have a predetermined electronic certificate, it is determined as a public application program.
An information processing apparatus characterized by being determined by any one of the above . The information processing apparatus according to claim 1, wherein the determination unit determines that the file is to be written to the volatile memory when the application program is a public application program as a type of the application program. . Confirmation means for confirming the presence of a file stored in the volatile memory;
The information processing apparatus according to claim 1, further comprising: a transfer unit that transfers the file from a volatile memory to a non-volatile memory when the confirmation unit confirms that the file exists. The transfer means generates a temporary file in the nonvolatile memory when transferring the file from the volatile memory to the nonvolatile memory, and the temporary file is transferred by the application program after the transfer is completed. The information processing apparatus according to claim 3, wherein the information processing apparatus is a written file. 5. The information processing apparatus according to claim 3, wherein the transfer unit performs transfer periodically, or when the execution of the application program ends or is temporarily stopped. An information processing apparatus having a nonvolatile memory and a volatile memory,
Instruction receiving means for receiving a file reading instruction from the application program;
Determining means for determining whether the file is stored in the nonvolatile memory or the volatile memory based on the type of the application program;
If the determination means determines that the file is stored in the volatile memory, the reading means includes a reading means for reading the file stored in the volatile memory ,
The type of the application program is whether it is a public application program, and the determination of the public application program is as follows:
(1) A table storing names of non-public application programs is prepared in advance. If the application program that has instructed file reading is not registered in the table, it is determined as a public application program. ,
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not a public type, and if it is any other name or there is no predetermined instruction, it is determined as a public type application program. ,
(3) If the application program does not have a predetermined electronic certificate, it is determined as a public application program.
An information processing apparatus characterized by being determined by any one of the above . Volatile memory file management means for storing the name of the file stored in the volatile memory and the stored location;
A non-volatile memory file management means for storing the name of the file stored in the non-volatile memory and the stored position;
When the determination means is a public application program as the type of the application program, the volatile memory file management means or the volatile memory file or the non-volatile memory indicates whether the file is stored in the volatile memory or the nonvolatile memory. The information processing apparatus according to claim 6, wherein the determination is performed using a nonvolatile memory file management unit. An information processing method performed by an information processing apparatus having a nonvolatile memory and a volatile memory,
An instruction receiving step for receiving an instruction to write a file from the application program;
Determining whether to write the file in the nonvolatile memory or the volatile memory based on the type of the application program;
If it is determined by the determining step to write to the volatile memory, the writing step includes writing the file to the volatile memory ;
The type of the application program is whether it is a public application program, and the determination of the public application program is as follows:
(1) A table storing names of non-public application programs is prepared in advance. If an application program that has instructed file writing is not registered in the table, it is determined as a public application program. ,
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not a public type, and if it is any other name or there is no predetermined instruction, it is determined as a public type application program. ,
(3) If the application program does not have a predetermined electronic certificate, it is determined as a public application program.
An information processing method characterized by being determined by any one of the above . An information processing method performed by an information processing apparatus having a nonvolatile memory and a volatile memory,
An instruction receiving step for receiving an instruction to read a file from the application program;
Determining whether the file is stored in the nonvolatile memory or the volatile memory based on the type of the application program;
When it is determined by the determination step that the file is stored in the volatile memory, the method includes a reading step of reading the file stored in the volatile memory ,
The type of the application program is whether it is a public application program, and the determination of the public application program is as follows:
(1) A table storing names of non-public application programs is prepared in advance. If the application program that has instructed file reading is not registered in the table, it is determined as a public application program. ,
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not a public type, and if it is any other name or there is no predetermined instruction, it is determined as a public type application program. ,
(3) If the application program does not have a predetermined electronic certificate, it is determined as a public application program.
An information processing method characterized by being determined by any one of the above . An information processing program that operates on an information processing apparatus having a nonvolatile memory and a volatile memory,
The information processing apparatus;
An instruction receiving means for receiving a file write instruction from the application program;
Determining means for determining whether to write the file in the nonvolatile memory or the volatile memory based on the type of the application program;
If it is determined by the determination means to write to the volatile memory, it functions as a writing means for writing the file to the volatile memory ,
The type of the application program is whether it is a public application program, and the determination of the public application program is as follows:
(1) A table storing names of non-public application programs is prepared in advance. If an application program that has instructed file writing is not registered in the table, it is determined as a public application program. ,
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not a public type, and if it is any other name or there is no predetermined instruction, it is determined as a public type application program. ,
(3) If the application program does not have a predetermined electronic certificate, it is determined as a public application program.
An information processing program determined by any one of the above . An information processing program that operates on an information processing apparatus having a nonvolatile memory and a volatile memory,
The information processing apparatus;
Instruction receiving means for receiving a file reading instruction from the application program;
Determining means for determining whether the file is stored in the nonvolatile memory or the volatile memory based on the type of the application program;
If it is determined by the determining means that the file is stored in the volatile memory, the reading means reads the file stored in the volatile memory and functions as a reading means .
The type of the application program is whether it is a public application program, and the determination of the public application program is as follows:
(1) A table storing names of non-public application programs is prepared in advance. If the application program that has instructed file reading is not registered in the table, it is determined as a public application program. ,
(2) It is determined that a predetermined name or a predetermined instruction is given to an application program that is not a public type, and if it is any other name or there is no predetermined instruction, it is determined as a public type application program. ,
(3) If the application program does not have a predetermined electronic certificate, it is determined as a public application program.
An information processing program determined by any one of the above .

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