JPH0378063A - Input/output processing controller - Google Patents

Abstract

PURPOSE:To eliminate the need to correct an existent input/output means by providing a device attribute information table, and extracting constituent elements of an attribute according to device kind information and generating the attribute of a desired input/output means. CONSTITUTION:A device kind information acquiring means 1 acquires the device kind information on an input/output device 50 which is specified by a user program 10 from an input/output device control means 4 and passes the control to a device attribute determining means 2. The means 2 retrieves a device attribute information table 22 corresponding to each piece of device kind information according to the device kind information obtained from the means 1 to determine the attribute of the device and passes the control to a data input/ output means 3. The means 3 controls the processing of data and input/output operation according to the constituent elements of the device attribute information obtained by the means 2 without paying attention to the device kind information. Thus, when the new input/output device 50 is supported, the attribute information on the device is controlled with the table, so the attribute information is only added to eliminate the need for corrections as to the existent input/ output means.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applied to input/output processing means for input/output devices having different attributes. In particular, it relates to input/output processing control means based on attribute information.

〔overview〕

The present invention corrects the logic when checking the type information of a new device by combining the elements constituting the attributes to generate the attributes of the desired input/output device in an input/output processing means for input/output devices with different attributes. This makes it possible to reduce the frequency of

[Conventional technology]

In the conventional example, control was performed based on type information of the input/output device. In other words, data processing corresponding to each input/output device is realized by a combination of processing for each element that makes up the attributes of that input/output device, and this combination is determined by the type information of the input/output device. .

[Problem that the invention seeks to solve]

In this way, in the conventional example, data input/output processing for the input/output device, that is, selection of processing for each element that constitutes the attributes of the input/output device required for processing data, depends on the input/output device. This is done according to the type information, so when supporting an input/output device where only the combination of processing for existing elements is new without the need to add new processing to the element, even if no new processing is added. It is necessary to modify the logic to always check the new device type information, which has the disadvantage that existing processing is also affected.

The present invention aims to eliminate such drawbacks and to provide an input/output processing control device that makes it unnecessary to modify existing data input/output means.

[Means for solving problems]

The present invention provides an input/output device management means for managing device type information corresponding to a plurality of input/output devices, and data input/output processed by the input/output device based on a combination of attribute components related to the input/output device. In an input/output processing control device equipped with a processing ring and data input/output means for controlling input/output, device type information corresponding to the input/output device specified by the user program is acquired from the input/output device management means. It has a device type information acquisition means and a table in which attribute components related to input/output devices are registered, and extracts desired attribute components from this table based on the device type information acquired by the device type information acquisition means. and combine,
The present invention is characterized by comprising device attribute determining means for applying the combination of attribute components to the data input/output means as a combination of attribute components related to the input/output device specified by the user program.

[Effect]

The device type information acquisition means acquires the device type information for the input/output device specified by the user program from the input/output device management means, passes control to the device attribute determination means, and the device attribute determination means corresponds to each device type information. The attribute information table is searched based on the device type information obtained from the device type information acquisition means to determine the attributes of the device, and control is passed to the data input/output means to perform data input/output. The means processes data and controls input/output according to the constituent elements of the device attribute information obtained by the device attribute determining means without being aware of the device type information.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of this embodiment. In this embodiment, as shown in FIG. an input/output device 50 configured by a device management means 4 and specified by the user program 10;
The user's data is processed according to the attributes of the input/output device 50, and input/output is performed. That is, in this example,
The input/output device management means 4 manages device type information corresponding to a plurality of input/output devices 50, and the data to be input/output processed by the input/output device based on the combination of attribute components related to the input/output device 50. A data input/output means 3 that performs processing and input/output control is further provided, and as a feature of the present invention, an input/output device management means 4 stores device type information corresponding to the input/output device specified by the user program.
device type information acquisition means 1 acquired from the input/output device 5;
0 is registered, and based on the device type information acquired by the device type information acquisition means 4, the components of a desired attribute are extracted from this table and combined, and the components of this attribute are extracted and combined. and a device attribute determining means 2 which provides the data input/output means 3 with a combination of attributes related to the input/output device specified by the user program 10.

FIG. 2 is a flowchart showing the processing performed by the device type information acquisition means 1. First, device type information for the input/output device 50 specified by the user program 10 is acquired from the input/output device management means 4 (step 311), and control is passed to the device attribute determination means 2.

FIG. 6 is a related diagram of an information table used by the device attribute determining means 2 which determines the attribute information of an input/output device based on the device type information obtained by the device type information acquiring means 1. Device type information tables 21a and 21b exist corresponding to the supported input/output device 50a and input/output device 50b, and each device type information table 21a and 21b contains device type information and an attribute indicating the corresponding attribute information table. It consists of an information pointer and a next device type information table pointer, and has one chain structure as a whole. This chain ends when the content of the next device type information table pointer is the table end code.

FIG. 3 is a flowchart showing the processing performed by the device attribute determination means 2. First, step 521 is to obtain device type information from the first device type information table 2La shown in FIG.
), compare this with the device type information acquired by the device type information acquisition means 1 (step 522), check the result (step 523), and if they match, acquire the attribute information (step 524), The processing of the attribute determining means 2 is completed and control is passed to the data input/output means 3.

If they do not match, check whether the next device type information table exists (step 525), and if there is no next table, execute error processing (step 5).
27). On the other hand, if there is a next table, the device type information in the next table is acquired (step 326) and compared again with the device type information obtained from the device type information acquisition means 1 (step 522).

FIG. 4 is a flowchart showing the processing of the data input/output means 3 which inputs and outputs data while being aware of the device attributes determined by the device attribute determining means 2. First, a process common to all devices is executed (step 331), and then a process is executed taking into account the attribute components in the attribute information obtained from the device attribute determining means 2 (step 532). That is,
In accordance with the values of the attribute components, necessary processing is selected and executed in order to process data corresponding to the device. Finally, input and output the processed data (step 533)
.

In this way, it is possible to control the flow of processing using attribute components within one data input/output means.

That is, data input/output processing is controlled simply by changing or adding information in the device attribute information table 22 in the device attribute determining means 2.

Next, the relationship between changes in the device attribute information table 22 and input/output processing will be explained. As shown in FIG. 6, when two input/output devices 50a and 50b having attribute components are supported, they have attribute components #l and #2, but the combination of elements is different from the existing one, A case will be explained in which a new input/output device that requires new device type information is supported.

FIG. 7 shows a relationship diagram of the device type information table and the device attribute information table after supporting the new device.

Next to the device type information table 21b of the already supported input/output device 50b, a new device type information table 21C of the input/output device 50C and the corresponding attribute information table 22c are defined. At this time, the value of component #1 of the attribute information table to be added is the same value as attribute component #l of input/output device 1, and the value of component #2 is the same value as attribute component #1 of input/output device #2. It is assumed that the value is the same as 2.

FIG. 5 is a flowchart showing the processing of the data input/output means 3 when supporting a new input/output device 50. First, processing common to all devices is executed (step 5301).

Next, the value of attribute component #1 is checked (step S
302), data processing processing X is executed on the input/output device whose value is A1, that is, the input/output device 50a, and the new input/output device 50C (step 5303), and the data processing processing X is executed on the input/output device whose value is not AI, that is, the input/output device 50b. Processing Y
is executed (step 3304). Then component #
The value of 2 is checked (step S305), and the value is 8.
1, that is, the input/output device 50a (step S306), and the value is 3.
The input/output devices other than 1, that is, the input/output device 50b and the new input/output device 50c skip the data processing process Z.

Finally, the input and output of the actually processed data is performed (
Step S307). In this way, it is possible to support the new input/output device 50C without changing existing processing.

〔Effect of the invention〕

As explained above, when supporting a new input/output device, the present invention manages the attribute information of the device in a table instead of controlling data input/output based on the device type information, so the attribute configuration of the device When the processing for an element consists of only existing processing, simply adding an attribute information table has the effect of eliminating the need to modify the existing data input/output means.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a flowchart showing processing by the device type information acquisition means in FIG. 1. FIG. 3 is a flowchart showing the processing by the device attribute determining means in FIG. 1. 4 and 5 are flowcharts showing processing by the data input/output means in FIG. 1. FIG. 6 is an information table related diagram of device attribute determining means that determines device attribute information from device type information obtained by device type information acquiring means. FIG. 7 is an information table related diagram of the device attribute determining means for explaining the relationship between changes in the attribute information table and input/output processing. DESCRIPTION OF SYMBOLS 1... Device type information acquisition means, 2... Device attribute determination means, 3... Data input/output means, 4... Input/output device management role, 10... User program, 21... - Device type information table, 22... Device attribute information table, 50... Input/output device.

Claims (1)

[Scope of Claims] 1. An input/output device management means for managing device type information corresponding to a plurality of input/output devices; and input/output with this input/output device based on a combination of attribute components related to the input/output device. In an input/output processing control device equipped with a data input/output means for processing data to be processed and controlling input/output, the device type information corresponding to the input/output device specified by the user program is transmitted to the input/output device management means. and a table in which configuration elements of attributes related to input/output devices are registered, and a configuration of desired attributes is obtained from this table based on the device type information acquired by the device type information acquisition means. device attribute determining means for extracting and combining the elements, and applying the combination of the component elements of the attributes to the data input/output means as a combination of the component elements of the attributes related to the input/output device specified by the user program; An input/output processing control device characterized by: