JPH09146802A - Data input / output processor - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To simplify the configuration of an application program and to easily change data sources such as addition and deletion. When an input / output request is made to a data source, a control processing unit 4 refers to a definition file 6 and specifies a data source of the input / output destination in a data name that specifies the data for which the input / output request is made. The request information is created based on this identifier and is notified to the input / output library 21 via the input / output processing unit 2. The input / output library 21 specifies the data source of the input / output destination by referring to the identifier of the request information, and calls the management program for the data source that performs the input / output processing with the specified data source. Therefore,
Since it is not necessary to provide an input / output processing unit for each data source, it is not necessary to change the input / output processing unit according to a change such as addition or deletion of a data source, and accordingly, the control processing unit 4 and the input / output processing unit 2 It is not necessary to change the application program consisting of.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a plurality of different data sources, such as a case where data is collected from different data sources such as a sequencer or a database, or data is set for these data sources. The present invention relates to improvement of a data input / output processing device for exchanging data between devices.

[0002]

2. Description of the Related Art Conventionally, for example, an ID number is read from an ID card presented by an employee at a factory entrance or the like, and this I
A management system that performs entrance examination and the like based on the employee information corresponding to the D number is configured as shown in FIG. 12, for example. The reading device 102 reads the ID information of the ID card 103 with the reading device 10.
The ID information read in 2 is transmitted to the sequencer 105,
The sequencer 105 converts this ID information into information that can be read by the computer 101 and transmits it to the computer 101. Then, the employee information specified by the ID information received by the computer 101 is read from the database 104 and displayed on the display device 101a of the computer 101, for example, as shown in FIG.

At this time, the application program for executing these processes is, for example, as shown in FIG.
Control processing unit 4 that makes an input / output request to each data source
And a database input / output processing unit 2a that reads out the database management program 11 based on an instruction from the control processing unit 4 and performs input / output processing with the database management program 11 in a predetermined processing procedure. Processing unit 4
Based on the instruction, the sequencer management program 12 is read and the sequencer management program 12 performs input / output processing according to a predetermined processing procedure, and the database input / output processing unit 2a. And a screen display processing unit 3 for performing screen display processing based on the data notified from the sequencer input / output processing unit 2b.

Then, the control processing unit 4 instructs the database input / output processing unit 2a or the sequencer input / output processing unit 2b to call the database management program 11 or the sequencer management program 12, and the database management program 11 sends data. By performing input / output processing with the source and with the sequencer management program 12 performing input / output processing with the sequencer, data is exchanged between the control processing unit 4 and each data source. Has become.

[0005]

However, in the above-mentioned conventional data input / output processing method, since the management program is different for each data source, the management program and the application program are different for each management program. I / O processing is being performed. Therefore, it is necessary to provide the application program with an input / output processing unit that performs input / output processing with the management program corresponding to the data source each time the data source is different.

Therefore, when a data source is added or deleted, it is necessary to add or delete the input / output processing unit in the application program each time, and the data source cannot be changed easily. There is an unsolved problem. Also, since it is necessary to provide an input / output processing unit for each different data source, the application program becomes longer in proportion to the number of data sources, and the application program becomes complicated accordingly, making debugging difficult. Or, there is also a problem that management of the program source becomes difficult.

Therefore, the present invention has been made in view of the above-mentioned unsolved problems of the prior art, and it is a data input / output that simplifies the configuration of an application program and can easily add or change a data source. It is intended to provide a processing device.

[0008]

In order to achieve the above object, a data input / output processing apparatus according to claim 1 of the present invention comprises:
A processing request unit that performs a data input / output request with respect to a data source with a data name that specifies request data that is data requested by the input / output request; An input / output that constitutes a main control processing means together with a data source management means for performing input / output processing between the data source management means and the processing request means, and transmits the request content of the input / output request in the processing request means to the data source management means. In a data input / output processing device comprising a processing means, identification information adding means for adding in advance to the data name identification information for specifying a data source of an input / output destination of request data specified by the data name, It is inserted between the entry output processing means and the data source management means and is added to the data name transmitted through the input / output processing means. Based on the identification information, the data source which is the input / output destination of the requested data is specified, and the data source selecting means for performing the input / output processing according to the request content with the data source management means corresponding to the data source. It is characterized by having and.

Therefore, when the processing request means makes a data input / output request to the data source, the content of the input / output request is transmitted to the data source selecting means via the input / output processing means. In the data source selecting means, the data source which is the input / output destination of the request data is specified and specified based on the identification information previously added by the identification information adding means to the data name of the transmitted request data. Predetermined input / output processing is performed based on the input / output request with the data source management means corresponding to the data source.

A data input / output processing device according to a second aspect of the present invention is characterized in that the correspondence between the identification information and the data source management means is managed on a file. Therefore, for example, when adding or deleting a data source, the data source can be changed by changing the management information, which is the correspondence between the identification information managed on the file and the data source management means. Be seen.

Further, in the data input / output processing device according to the third aspect, when the identification information adding means inputs / outputs data to / from another data input / output processing device, the input / output destination of the requested data. A device information adding means for adding device identification information for specifying the data input / output processing device to the data name, and the data source selecting means is configured to specify another data input / output processing device by the device identification information. When it is present, the input / output processing is performed with the other device management means for performing the input / output processing with the other data input / output processing apparatus.

Therefore, when an input / output request is made to data managed by another data input / output processing device, the data name of the requested data for which the input / output request is made is made available by the device information adding means. Since the device identification information for identifying the input / output processing device is added, the data source selection means performs input / output processing with other device management means based on the device identification information.

Further, in the data input / output processing device according to the present invention, the data source management means is a memory access means, and the memory access means specifies a data name for specifying data to be written in the main memory and the data. Acquisition means for acquiring in the main storage memory a registration area for writing a value in association with each other; and the registration when the data name corresponding to the data requested to be written to the main storage memory is already registered in the registration area. The data value corresponding to the data name of the area is updated and stored, and when it is unregistered, the data name and the data value of the data for which the write request is made are registered in the registered area, and the data of the read request is made. Memory data management means for searching the registered area for a data name and reading a corresponding data value. It is.

Therefore, for example, when a data input / output request is made to the main memory, that is, when writing or reading is performed, the identification information for identifying the main memory is sent by the identification information adding means as a write request or a read request. Since it is added to the data name of the requested data, which is the executed data, the data source selection means calls the memory access means based on this identification information. The data value of the main memory is stored in the registration area acquired in the main memory by the acquisition unit in association with the data name and the data value by the memory data management unit, and the data value is managed by the data name. .

Further, in the data input / output processing device according to a fifth aspect of the present invention, the memory access means specifies the activation source identification information that identifies the main control processing means that makes a data write request to the main memory as an activation source. A boot source information storage unit that stores the data in association with a data name, and when the process of the boot source is completed, the registered area related to the data name specified by the boot source specifying information of the boot source is set as an unused area. And a memory area management means for returning.

Therefore, the data name written in the main memory in response to the write request of the main control processing means is associated with the boot source specifying information for specifying the boot source which is the main control processing means that has written this data. When the processing of the boot source is completed, the memory area management means returns the registration area associated with the data name corresponding to the boot source specifying information for specifying the boot source to the unused area.

Further, in the data input / output processing device according to a sixth aspect, the data source selection means connects the input / output requests for two or more data in a connection format in which a data name specifying the data is preset. It is characterized in that the input / output processing is performed in a predetermined procedure specified by the above-mentioned concatenation format when the concatenation data name is formed. Therefore, for example, in the case of making an output request for a plurality of data at the same time, such as at the time of initial setting, for example, in the processing requesting means, in a preset concatenation format indicating that the same data is output to a plurality of data names, By concatenating the plurality of data names to form a concatenated data name and notifying the concatenated data name, the data source selecting means sequentially identifies and responds to the data source of the output destination for each data name based on the concatenated format. Output processing is performed in a predetermined processing procedure with the data source management means.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below. This first embodiment is an application of the data input / output processing device according to the present invention to a management system for checking the entry of an employee by the ID card shown in FIG. Is the same as above, so detailed description will be omitted.

FIG. 1 is a functional block diagram showing the functional configuration of the management system. This management system includes a system control unit (main control processing unit) 1 that controls the entire management system, and a database 104 as a data source.
And a database management program 1 as data source management means for performing input / output processing with the sequencer 105
1 and a sequencer management program 12, and an input / output library (data source selection means) 21 that calls the database management program 11 or the sequencer management program 12 in response to an input / output request from the system control unit 1. ing.

The system control unit 1 is an application program for controlling the entire management system,
The system control unit 1 includes an input / output processing unit (input / output processing unit) 2 that performs input / output processing when an input / output request is made to the database 104 and the sequencer 105, and the sequencer 105 input via the input / output processing unit 2. Screen display processing unit 3 that performs display processing on the display device 101a, such as displaying ID information from the user and employee information from the database 104 in a predetermined display form, and these input / output processing units 2
And a control processing unit 4 for controlling the screen display processing unit 3.

The input / output processing unit 2 makes an input / output request to the input / output library 21 according to a predetermined procedure based on the input / output request from the control processing unit 4, and is notified from the input / output library 21. The control processing unit 4 is notified of the data from each data source. Further, the screen display processing unit 3
Is a display mode in which the ID information from the sequencer 105 and the employee information input from the database 104 are preset based on an instruction from the control processing unit 4, and is displayed on the display device 101a as shown in FIG. 13, for example. To do.

Then, the control processing unit 4 issues an input request to the input / output processing unit 2 to read the ID information from the sequencer 105, and stores the employee information corresponding to the read ID information in the database. An input request is made to read from 104. Further, the screen display processing unit 3 is instructed to display the read employee information on the display device 101a in a predetermined display form.

Further, the control processing unit 4 manages the data input / output to / from the data source by the data name set according to the type of the data. When a data input / output request is made with the input / output processing unit 2, an identifier (identification) that specifies the data source that is the input / output destination of this data is added to the data name that specifies the data for which the input / output request is made. Information) is added (identification information adding means), and request information for inputting / outputting data is formed based on the identifier and the data name.

That is, for example, when the data name of the desired data is “DATA1”, the definition file 6 created in advance by the support tool 5 or the like is referred to, and the input / output of the data of the data name “DATA1” is performed. An identifier that identifies the destination data source is added. For example, in the case of the sequencer 105, "DD" is added (Fig. 2 (a)).
Similarly, for example, when the data source of the input / output destination is the data name “LIST1” which is the database 104, the identifier “DB” is added as shown in FIG. Then, the request information formed based on these is notified to the input / output library 21.

On the other hand, the input / output library 21 is called from the input / output processing unit 2 and extracts an identifier from the notified request information for input or output, and the data source corresponding to the identifier, in this case, the database 104. Alternatively, the management program 11 or 12 corresponding to the sequencer 105 is called, and input / output processing is performed with these management programs according to a predetermined procedure set for each management program. As a result, input / output with the data source is performed via the management program, and in the case of an input request, the specified data is received from the data source via the management program and is notified to the input / output processing unit 2.

The database management program 11
Is called from the input / output library 21, and performs data input / output processing with the database 104 in response to an input / output request designated by the input / output library 21. The database 104 is stored as a file in, for example, the hard disk device of the computer 101. Similarly, the sequencer management program 12 is called from the input / output library 21 and exchanges data with the sequencer 105 in response to an input / output request designated by the input / output library 21.

Next, the operation of the first embodiment will be described based on the flowchart of FIG. 3 showing the processing procedure of the control processing unit 4 and the flowchart of FIG. 4 showing the processing procedure of the input / output library 21. It is assumed that the database 104 and the sequencer 105 are provided as data sources. In FIG. 12, if the employee operates the reading device 102, the reading device 1
The ID number of the ID card 103 read in 02 is transmitted to the sequencer 105.

The computer 101 periodically requests the sequencer management program 12 to input an ID number, and the control processing unit 4 sets the data name of the ID number to "DA".
TA1 ”, the definition file 6 set in advance is referred to search for an identifier that identifies the input destination of the data name“ DATA1 ”, and the searched identifier is used as the data name“ DATA1 ”.
To be added. For example, assuming that the input destination of "DATA1" is the sequencer 105, the identifier "DD" for identifying the sequencer 105 is added to "DATA1" based on the definition file 6 as shown in FIG. .

Then, in the control processing unit 4, "DD \ DA
The request information "TA1" is input and is notified to the input / output processing unit 2, and the input / output processing unit 2 receives this and performs predetermined input / output processing with the input / output library 21 to perform input / output library processing. 21 is notified of the request information (step S
1). In response to this, in the input / output library 21, first,
The notified request information is analyzed to extract the identifier (step S11). Then, this identifier is the sequencer 105
It is determined whether or not it is the "DD" that specifies (step S12). If the identifier is "DD", the sequencer management program 12 is read as the request information for the sequencer 105 (step S1).
3). As a result, the sequencer management program 12 is executed.

The sequencer management program 12
I consisting of the ID number read from the sequencer 105
The D information is added to the data name "DATA1" to form response information, which is notified to the input / output library 21. In the input / output library 21, the input / output processing unit 2 that calls the sequencer management program 12 uses the notified response information.
(Step S14).

The input / output processing unit 2 notifies the notified response information to the control processing unit 4, and the control processing unit 4 forms display information based on the response information (step S2). And
The display information is notified to the screen display processing unit 3 to make a display request (step S3). In response to this, the screen display processing unit 3 forms image information based on the display information and displays the image on the display device 101a.
Is output to the display screen, the employee ID number is displayed (FIG. 13).

Next, the control processing unit 4 makes an input request to the database 104 in order to read the employee information corresponding to the ID information "DATA1" from the database 104. For example, the data name of employee information is "L
IST1 ", the definition file 6 is referred to and" LI
The identifier corresponding to "ST1" is obtained. In this case, the identifier "DB" representing the database 104 is obtained, and this is added to the data name (FIG. 2B), and based on these, I
Request information that the employee information of the ID number specified by the D information is input is formed and notified to the input / output library 21 via the input / output processing unit 2 (step S1).

In the input / output library 21, the identifier is "D
Since it is B ”, the database management program 1
1 (steps S11, S12, S15, S1
6). As a result, the database management program 1
1 is executed, the management program 11 retrieves the employee information corresponding to the ID number specified by the ID information from the database 104, reads it, forms response information for the request information, and inputs this response information. Notify the output library 21.

In response to this, the input / output library 21
The response information is notified to the input / output processing unit 2 which is the request source of the input request (step S14). Then, the input / output processing unit 2 forms display information based on the notified response information (step S2), and this display information is displayed on the image display processing unit 3
To display the employee information on the display device 101a (step S3). As a result, as shown in FIG. 13, the employee information of the employee who owns the ID card 103 is displayed on the display device 101a.

In the input / output library 21, if the identifier specified by the request information is not the registered identifier, in this case, neither "DD" nor "DB", it is determined that an abnormality has occurred. Error processing is executed (step S17). Here, in the configuration diagram of FIG. 12, it is assumed that a sub-database, which is a database stored in a floppy disk or the like, is further added as a data source. In this case, first, a sub-database and a sub-database management program for performing input / output processing for the sub-database are newly provided.
Next, the definition file 6 is operated by the support tool 5, and an identifier for specifying the sub-database, for example, "DBa" is set for the data for which the sub-database is set as the data source of the input / output destination. Further, in the input / output library 21, the management program for the sub-database is changed to be called when the identifier is "DBa".

Thus, for example, when desired employee information is registered in the sub-database, the control processing unit 4 adds the identifier "DBa" based on the definition information in the definition file 6, Based on the request information, the request information is formed and notified to the input / output library 21 via the input / output processing unit 2. Then, the input / output library 21 calls the management program for the sub-database based on this identifier "DBa". After that, as in the above, the sub-database management program searches the sub-database, reads predetermined data, and notifies the input / output library 21 of this, which is notified to the control processing unit 4 via the input / output processing unit 2. .

Therefore, in the input / output processing unit 2 forming the application program, the input / output library 21
The I / O library 21 identifies the data source of the I / O destination based on the identifier identified by the I / O request, and the I / O processing with the corresponding management program. Therefore, it is not necessary to provide the input / output processing unit 2 for each data source. Therefore, the application program can be simplified and the application program can be easily viewed. Therefore, it is possible to easily manage the program source and debug the program.

Further, even when a data source such as a sub-database is newly added, it is not necessary to newly provide an input / output processing section in the application program, and only the definition file 6 and the input / output library 21 need to be changed. Therefore, it is possible to easily make a change such as addition or deletion of a data source. In addition, in the said 1st Embodiment, although the case where a sequencer and a database were used as a data source was demonstrated, not only two but one or three or more data sources can also be applied.

Next, a second embodiment of the present invention will be described. The second embodiment is the same as the first embodiment except that a correspondence table showing correspondence between identifiers and data sources is created and stored in a file. That is, in the input / output library 21, a correspondence table showing the correspondence between the identifier, the data source specified by the identifier, and the storage position information indicating the storage position of the management program for the data source, using a support tool or the like. Is created and stored in a file. Then, for example, at the time of startup, the correspondence table is read from this file and held in the main memory.

When the request information is notified from the input / output processing unit 2, the input / output library 21 extracts the identifier from the request information (step S21) and stores it in the main memory as shown in the flowchart of FIG. By referring to the read correspondence table, it is determined whether the identifier extracted from the request information is registered in the correspondence table (step S22). If it is the registered identifier, the storage position information of the management program corresponding to the identifier is read from the correspondence table, and the management program stored in the area specified by this storage position information is called (step S23). .

As a result, the management program is executed, and the input or output processing of the data specified by the request information is performed. Then, when an input request is made, the input / output library 21 forms response information based on the data notified from the management program, and notifies the input / output processing unit 2 of this (step S24). On the other hand, when the identifier notified by the request information is an identifier not registered in the correspondence table, it is determined that an abnormality has occurred and a predetermined error process is performed (step S25).

Therefore, when changing the data source, it suffices to change the correspondence table by operating the correspondence file with a support tool or the like, and it is not necessary to change the program itself of the input / output library 21. The data source can be changed more easily. Next, a third embodiment of the present invention will be described based on FIG.

FIG. 6 shows the functional configuration of the management system according to the third embodiment. In the functional configuration of the management system according to the first embodiment shown in FIG. 1, the remote management program ( Other device management means)
Since it is the same except that 14 is added, the same reference numerals are given to the same portions, and detailed description thereof will be omitted. The remote management program 14 is called by the input / output library 21 and, according to request information from the input / output library 21, input / output of data with another data input / output processing device connected via a communication line such as a LAN. Perform processing.

On the other hand, when the operator creates the definition file 6, the operator adds an identifier for specifying the data source of the input / output destination, and whether the data is managed by the own machine (local) or other data input / output processing. Device (remote)
A device identifier (device identification information) that is information for identifying whether or not the data is managed by (device information adding means).

That is, for example, the data name "DATA1"
However, if it is assumed that the own machine is the data of the sequencer that manages the data, then as shown in FIG. 7A, the data name "DATA1" has an identifier "D" indicating the sequencer.
"D" is added, and the device identifier "L" that represents the own machine is added.
OCAL "is added. Similarly, for example, the data name" L "
Assuming that the information of “IST1” is the data of the database in which the other data input / output processing device manages the data, as shown in FIG. 7B, the identifier “DB” representing the database and the other data. A device identifier "REMOTE" representing an input / output processing device is added.

When making a data input / output request, the control processing section 4 refers to the definition file 6 as in each of the above-described embodiments, and makes an input / output request for data having the data name "LIST1", for example. When performing, since the input / output destination is defined as “REMOTE ¥ DB” in the definition file 6, request information for making an input / output request is formed based on these identifiers and data names, and this is input. Notify the output library 21.

When the input / output library 21 is notified of the request information, as shown in the flowchart of FIG. 8, the device identifier is extracted from the request information (step S31) and it is determined whether the device identifier is "REMOTE". (Step S32). In the above case, since the device identifier is "REMOTE" as shown in FIG. 7B, the remote management program 14 is called (step S33). As a result, the remote management program 14 is executed, data is exchanged with another data input / output processing device, and the response information is notified from the remote management program 14 to the input / output library 21. The input / output library 21 notifies the response information to the input / output processing unit 2 which is the caller of the remote management program 14 (step S3).
4).

On the other hand, for example, the device identifier of the request information received by the input / output library 21 from the input / output processing section 2 is shown in FIG.
If it is "LOCAL" as shown in (a), then an identifier for identifying the data source is extracted from the request information and referred to, and it is determined whether or not it is "DD" (step S35). , S36). In this case, the identifier is "D
Since it is "D", the sequencer management program 12 is called (step S37).

At this time, if the identifier is "DB", the database management program 11 is called (steps S38, S39). If the identifier is neither "DD" nor "DB", it is determined that an abnormality has occurred and a predetermined error process is executed (step S40). Therefore, even when data is exchanged between other data input / output processing devices, the application program does not need to be aware that the data is from another data input / output processing device and communicates with the data source managed by its own machine. Processing can be performed in the same manner as when data is input / output between data, and addition and deletion of another data input / output processing device can be easily performed without changing the application program. It is possible to obtain the same effect as that of the embodiment.

Further, since the identification information is added in two steps, that is, the device identifier for specifying the device and the identifier for specifying the data source, even in other data input / output processing devices,
The same processing as above can be performed by specifying the management program to be called from the identifier of the data source managed by itself. In the third embodiment, the correspondence information between the identifier and the data source, or the correspondence between the identifier and another data input / output processing device is stored in the input / output library 2.
Although the case of holding in 1 has been described, it is also possible to create a correspondence table and manage this on a file as in the second embodiment. By doing so, the input / output destination of data can be changed more easily.

Next, a fourth embodiment of the present invention will be described. FIG. 9 shows a functional configuration of the management system according to the fourth embodiment. The first embodiment shown in FIG.
In the functional configuration diagram of the management system in the embodiment, the same as the management program 15 except that the memory management program 15 is added, the same portions are denoted by the same reference numerals, and detailed description thereof will be omitted.

The memory management program 15 is called by the input / output library 21,
Data is read and written according to the request information from 1. At this time, when writing data to the main storage memory, an area accessible by a plurality of application programs on the main storage memory is acquired as a registration area (acquisition means), and the data requested to be written in this registration area is acquired. The data name and the corresponding data value are stored in association with each other. Then, if the data requested to be written is already registered in the registration area, the corresponding data value in the registration area is updated and stored, and if it is not registered in the registration area, it is registered in the main memory. A new area is acquired, and the data name and the data value are stored therein in association with each other. When reading data from the main memory, the memory management program 15 refers to the registration area,
The data name of the data requested to be read is searched and the corresponding data value is read (memory data management means).

On the other hand, when the operator creates the definition file 6, the operator adds "VD" as the identifier for specifying the data source of the input / output destination when the data is on the main memory. I / O library 2
1 calls the corresponding management program according to the identifier as in the first embodiment, and the identifier is "VD".
If so, the memory management program 15 is called.

Next, the operation of the above fourth embodiment will be described. For example, assume that an application program is simulated now. First, the operator
Data for simulation is written to the main memory, and data required for simulation is written to the main memory by using, for example, a simulation data setting support tool. As a result, the control processing unit 4 makes a write request to the data value to which the identifier “VD” representing the main memory and the data name are added, and this is sent via the input / output processing unit 2 to the input / output library 2
1 is notified. Since the identifier is "VD", the input / output library 21 calls the memory management program 15 to acquire a registration area in the main memory, and stores the data name and data value in association therewith.

When the operator finishes writing the necessary simulation data, he / she then operates the support tool 5 of the definition file 6 to input / output data to / from the database 104 and sequencer 105 in the application program. Changes all the identifiers that specify the data source of the input / output destination to the identifier "VD" that specifies the main memory.

When the application program is executed in this state, when the application program makes an input / output request to each data source, for example, the data name "DATA1" which is the data of the sequencer 104 is displayed.
, The data name “DATA1” is set as the data in the main memory in the definition file 6, and therefore the data specified by the request information notified to the input / output library 21. Is "VD
\ DATA1 ". Therefore, the input / output library 21
Then, since the identifier is "VD", the management program 15 for the main memory is called.

Then, the management program 15 refers to the registration area of the main memory and reads the data value corresponding to the data name "DATA1", that is, the simulation data. Similarly, all the data for the sequencer 105 and the database 104 becomes simulation data, and the application program is simulated by this.

When the simulation is completed, the definition file 6 is operated again by the support tool 5 to return the identifiers indicating the input / output destinations of the respective data to the original identifiers for specifying the database 104 or the sequencer 105, respectively. As a result, data input / output with the database 104 or the sequencer 105 becomes possible, and normal operation can be performed.

Therefore, the management program 15 for the main memory, which writes and reads data in the main memory, is also called via the input / output library 21, so that the data in the main memory can also be read. The input / output request can be made in the same procedure as the input / output request to the database 104 or the sequencer 105, so that the input / output destination of data between them can be easily changed. Therefore, only by changing the definition file 6 and registering the correspondence between the identifier for the main memory and the management program in the input / output library 21, the simulation can be easily performed without changing the application program.

Since the memory management program 15 manages the data in the main memory by associating the data name and the data value with each other, the data in the main memory can be stored in the application program only by designating the data name. You can set or refer to
A plurality of application programs can update or refer to the data in the main memory.

In the fourth embodiment described above,
The case where the correspondence between the identifier for identifying each data source and the management program corresponding to the data source is registered in the input / output library 21 has been described. However, as in the second embodiment, a correspondence table is created and stored as a file. It is also possible to manage above. By doing so, it is possible to easily change the data input / output destination.

Further, if the correspondence table is created in this way and is managed on a file, the database 10 is stored in the correspondence table without changing the definition file 6.
4. By changing the storage location information of the management program corresponding to the identifier of the sequencer 105 to the storage location information of the management program for the main memory, the data input / output destination can be easily changed in the same manner as above. It is possible to obtain the same effect as the above.

In each of the first to fourth embodiments described above, the case where one application program calls the input / output library 21 has been described.
It is also possible to call 1. In this case, the input / output library 21 stores the application program that called the input / output library 21, and notifies the called application program of the response information.

Next explained is the fifth embodiment of the invention. The fifth embodiment is the same as the fourth embodiment except that the memory management program 15 is provided with the data management function in the fourth embodiment. The description is omitted. In the memory management program 15 according to the fifth embodiment, when writing to the main storage memory, it is determined whether or not the data name to be written is already registered in the registration area, and it is not registered. Sometimes, the program specifying information (starting source specifying information) for specifying the written application program is also registered in the registration area in association with the data name (starting source information storage means).

On the other hand, in the input / output library 21, when the input / output request information for the main memory is notified from the system controller 1, that is, the application program, the application specifying information for specifying the system controller 1 is requested. It is added to the information and notified to the memory management program 15. Further, when the processing end notification is received from the system control unit 1, a request for deleting all information related to the data name on the main memory associated with the application specifying information for specifying the system control unit 1 is issued to the memory. The management program 15 is executed (memory area management means).

Next, the operation of the fifth embodiment will be described with reference to the flowchart showing the processing procedure of the memory management program 15. For example, it is assumed that the application program AP1 makes a write request to the main memory. The input / output library 21 is
The identifier is extracted from the request information from the input / output processing unit 2,
In this case, the identifier "VD" for specifying the main memory is taken out, the memory management program 15 is called based on this, and the memory management program 15 is requested by adding the application specifying information for specifying the application program AP1. Notify the information.

The management program 15 for the memory is shown in FIG.
As shown in 0, the data name is extracted from the notified request information and it is determined whether or not the data name is registered in the main memory (step S41). If the data name is not registered in the main memory, the registration area is acquired in the main memory (step S42).
Next, the data name and the application specifying information are extracted from the request information and registered in the registration area (step S43), and then the data value specified by the request information is stored in the position corresponding to the data name of the registration area (step S43). S
44).

On the other hand, when writing to the already registered data name, the already stored data value is updated and stored as the newly set data value (step S44). And another application program A
Even when P2 writes to the main memory,
Writing is performed via the input / output library 21 in the same manner as described above, and the memory management program 15 searches the registered area for the data name for which the application program AP2 has made a write request, and if it is an unregistered data name, The registration area is acquired, and the data name and the application specifying information for specifying the application program AP2 are stored in the registration area in association with each other.

Then, the application program AP
When the process of 1 is completed, the application program A
P1 notifies the input / output library 21 of the end of processing. In response to this, the input / output library 21 deletes the information related to the data name associated with the application identification information that identifies the application program AP1 for each data name of the registration area in the memory management program 15. To make a request. As a result, the memory management program 15 is executed, the registration area of the main memory is referenced, the data name associated with the specified application identification information is searched, and the corresponding data name, data value, and application identification information are searched. And are deleted.

As a result, the registration area used by the application program AP1 becomes an unused area. Therefore, since the registered area acquired by the application program that has completed the processing is returned to the unused area, even when a plurality of application programs access the main memory, for example,
The memory area does not remain acquired by a plurality of application programs until all the application programs are finished as in the conventional art, and the memory area can be effectively used.

In the above fifth embodiment,
Upon receipt of the processing end notification from the application program, the input / output library 21 causes the memory management program 15
However, it is also possible for the application program to make a deletion request to the memory management program 15 at the end of processing.

Next explained is the sixth embodiment of the invention. The sixth embodiment is the same as the first embodiment except that the system controller 1 and the input / output library 2 are used.
The input and output request information is the same as that of the input / output request information, and the detailed description thereof will be omitted. In the control processing unit 4, when the same value is set for a plurality of data, for example, when initializing zero clear, the data name to be set is a preset linking format, for example, the linking symbol “>”. , And a data value is added to this to form request information.

For example, the data name "D" of the sequencer 105
When zero is set as a data value for ATA1 ”and“ DATA2 ”, as shown in FIG. 11A, two data names with an identifier are connected by a concatenation symbol“> ”and the data value is zero. In addition, for example, "DA
When zero is set as a data value also for TA3 ", it is further connected to the right side of" DATA2 "by a connecting symbol">", at this time, the setting for the data name on the leftmost side is performed.

Further, in the control processing unit 4, when a data value set in a certain data name is set as a data value in another data name, for example, a plurality of data are set according to the data value set in a certain data name. When the initial setting is performed for the name, the two data names to which the identifiers are added are linked by a preset link format, for example, the link symbol "<", and the request information is formed based on this link.

For example, the data name "D" of the sequencer 105
When the data value set as the initial value in ATA2 ”is set in the data name“ DATA1 ”,
As shown in (b), the data name for reading the data value is described on the right side of the concatenation symbol “<”, and the data name for setting the read value is described on the left side of the concatenation symbol “<”. further,
For example, even if the data value of "DATA3" is "DATA
When setting the data value of "2", it is connected to the left side of "DATA1" by the concatenation symbol "<". At this time, the input / output library 21 reads the data value of the data name on the rightmost side and It is assumed that the values are set in order from the data name on the rightmost side and the data name connected by the concatenation symbol “<” to the data name on the left side.

On the other hand, in the input / output library 21, when the data name linked by the concatenation symbol “>” is designated as the request information as shown in FIG. 11A, it is located on the left side of the concatenation symbol “>”. Input / output processing is performed in order from the described data name, and processing is first performed for "DD \ DATA1". Then, based on the identifier "DD", the management program for sequencer 11 is called and the data name "DATA1"
Request output to set to zero. Then, since the identifier of the next data name is also "DD", the output request is made to continuously set the data name "DATA2" to zero.

In the input / output library 21, when the data name linked by the concatenation symbol "<" is designated as the request information as shown in FIG. 11B, first, the concatenation symbol "<" Input / output processing is performed for "DD \ DATA2" described on the right side, and the sequencer management program 11 is called based on the identifier "DD" to obtain the data name "D".
ATA2 ”is input. When the sequencer management program 11 notifies the data value of“ DATA2 ”set in the sequencer 105,“ DD ¥ ”written to the left of the concatenation symbol“ <” An output request is made to set the notified data value of DATA2 ″ as DATA1 ″.

Therefore, in the input / output processing unit 2, even when setting data for two data names, it is not necessary to call the input / output library 21 for each data name.
Since two data names can be called once and set, the processing time required for setting can be shortened and the processing efficiency can be improved. Especially,
The input / output library 21 is used when zero is set for a plurality of data names, such as when performing zero clear in the initial setting.
Is called once, the input / output library 21 performs input / output processing for a plurality of data names based on the request information from the input / output processing unit 2. Therefore, it is not necessary to call the input / output library 21 for each data name. The processing time can be shortened.

In addition, the already set "DATA
Even when the data value of 2 ”is set as the initial value of“ DATA1 ”, the value notified as the data value of“ DATA2 ”is set to“ DATA1 ”in the input / output library 21.
Since the read data value can be set without the application program, the processing efficiency can be improved.

In the sixth embodiment described above, the input / output request is made for the data of the same data source, but the data of different data sources can be processed in the same manner. Further, in the sixth embodiment, a case where the same data is set as a plurality of data values or a case where a data value of a certain data name read from a data source is set as a data value of another data name will be described. However, the present invention is not limited to this, and if the connection format is preset between the application program and the input / output library 21, arbitrary processing can be executed. For example, by a single input request from the application program, It is also possible to read the data values of multiple data names.

Further, in the sixth embodiment, the case where the connection is made by "<" or ">" has been described, but the connection form is not limited to this and can be set arbitrarily. In the first to sixth embodiments, the case where the data input / output processing device according to the present invention is applied to the management system of FIG. 12 has been described, but the present invention is not limited to this and can be arbitrarily applied. .

[0082]

As described above, according to the data input / output processing device of the first aspect, the data source selection means performs the input / output operation based on the identification information added to the data requested to be input / output. Since the previous data source is specified and the input / output processing is performed with the corresponding data source management means in accordance with the content of the input / output request, the input / output processing unit is connected to the data source selection means. Input / output processing should be performed only in. Therefore, since the input / output processing unit and the data source management unit can be handled independently of each other, the main control processing unit can have a simple configuration including the processing request unit and the input / output processing unit. Even when the data source managing means is added or deleted, it can be changed without changing the main control processing means. For example, when the application program is applied as the main control processing means, the application program is changed. It is possible to add or delete a data source without changing the data source.

According to the data input / output processing device of the second aspect, when the data source is added or deleted, the data source selecting means does not change its processing content. Since it is only necessary to change the correspondence between the identification information on the file and the data source, the data source can be changed more easily. Also,
According to the data input / output processing device according to the third aspect, the device identification information is added to the data managed by the other data input / output processing device. It can be handled in the same manner, and the addition and deletion of the data input / output processing device can be easily performed.

According to the data input / output processing device of the fourth aspect, the memory access means manages the write data in the main memory by associating the data name with the data value. In the control processing means,
The main memory can be treated in the same manner as the data source, and, for example, even when the data input / output destination is changed from the data source to the main memory, it can be easily performed without changing the main control processing means.

Further, according to the data input / output processing device of the fifth aspect, the data written in the main memory by the main control processing means is stored in the main memory when the processing of the main control processing means is completed. Since the deleted area is returned and the registered area is returned to the unused area, the main memory can be effectively used. Further, according to the data input / output processing device of the sixth aspect, when an input / output request is made for a plurality of data, the data corresponding to the plurality of data in a concatenated format preset by the processing requesting means. By making an input / output request using a concatenated data name in which the names are concatenated, the data source selection means performs input / output processing with a predetermined data source management means for each data, so that the processing request means is the data source. By making a single data input / output request to the selection means, input / output processing for a plurality of data can be performed, and processing efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a functional configuration diagram of a computer according to a first embodiment of this invention.

FIG. 2 is an explanatory diagram for explaining the operation of the first embodiment of the present invention.

FIG. 3 is a flowchart showing an example of a processing procedure of a control processing unit according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing an example of a processing procedure of an input / output library according to the first embodiment of the present invention.

FIG. 5 is a flowchart showing an example of a processing procedure of an input / output library according to the second embodiment of the present invention.

FIG. 6 is a functional configuration diagram of a computer according to a third embodiment of this invention.

FIG. 7 is an explanatory diagram for explaining the operation of the third embodiment of the present invention.

FIG. 8 is a flowchart showing an example of a processing procedure of an input / output library according to the third embodiment of the present invention.

FIG. 9 is a functional configuration diagram of a computer according to a fourth embodiment of this invention.

FIG. 10 is a flowchart showing an example of a processing procedure of a memory management program according to the fifth embodiment of the present invention.

FIG. 11 is an explanatory diagram for explaining the operation of the sixth embodiment of the present invention.

FIG. 12 is a schematic configuration diagram showing an example of a management system to which a data input / output processing device is applied.

FIG. 13 is an example of a display screen of the management system.

FIG. 14 is a functional configuration diagram showing an example of a conventional data input / output processing device.

[Explanation of symbols]

 1 system control unit 2 input / output processing unit 3 image display processing unit 4 control processing unit 6 definition file 11 database management program 12 sequencer management program 14 remote management program 15 memory management program 21 input / output library 101 computer 101a display device 102 Reader 104 Database 105 Sequencer

Claims (6)

[Claims] 1. A process requesting means for making a data input / output request to a data source, together with a data name for specifying request data which is data requested by the input / output request.
A data source management unit that is provided for each data source and that performs input / output processing with the data source, and a main control processing unit together with the processing requesting unit, and that of the input / output request by the processing requesting unit. In a data input / output processing device comprising an input / output processing means for transmitting request contents to the data source management means, a data source of an input / output destination of request data specified by the data name is specified in the data name. It is inserted between the identification information adding means for adding identification information in advance, the input / output processing means and the data source management means, and is added to the data name transmitted through the input / output processing means. A data source that is an input / output destination of the request data is specified based on the identification information, and the data source management means corresponding to the data source is required to perform the above-mentioned operation. Data access processing apparatus characterized by comprising: a data source selection means for performing output processing in accordance with the contents, the. 2. The data input / output processing device according to claim 1, wherein the correspondence between the identification information and the data source management means is managed on a file. 3. The device identification for identifying the data input / output processing device which is the input / output destination of the requested data when the identification information adding means inputs / outputs data to / from another data input / output processing device. The data source selecting means has device information adding means for adding information to the data name, and when the data identifying means specifies another data input / output processing device, the data source selecting means is connected to the other data input / output processing device. 3. The data input / output processing device according to claim 1, wherein the input / output processing is performed with another device management means for performing input / output processing between them. 4. The data source management means is a memory access means, and the memory access means stores a registration area in which a data name specifying data to be written in a main memory is associated with the data value. Acquisition means for acquiring on the storage memory, and updating the data value corresponding to the data name of the registration area when the data name corresponding to the data requested to be written to the main storage memory is already registered in the registration area When the data is stored and is not registered, the data name and the data value of the write-requested data are registered in the registration area, and the corresponding data is searched in the registration area for the data name of the read-requested data. 4. The data according to claim 1, further comprising: a memory data management unit that reads out a value. I / O processing unit. 5. The activation source information storage in which the memory access unit stores activation source identification information that identifies the main control processing unit that issues a data write request to the main memory as an activation source in association with the data name. Means and memory area management means for returning the registered area associated with the data name specified by the starting source specifying information of the starting source to an unused area when the processing of the starting source is completed. The data input / output processing device according to claim 4. 6. The data source selection means makes an input / output request for two or more data by using a concatenated data name obtained by concatenating data names that specify the data in a preset concatenation format. At this time, the data input / output processing device according to any one of claims 1 to 5, wherein the input / output processing is performed according to a predetermined procedure specified by the connection format.