JPH0962548A - Transaction processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transaction processing system, with which the change of input/output device can be flexibly dealt with, on NUIX. SOLUTION: Concerning an application program 14, transaction data are read from an input queue 11 by a unified interface based on input/output destination information provided from a transaction control part 13, processed, stored in an output queue 17 later and outputted through an output control part 18 to an output device 19. When the transaction data are inputted from an input device 10, with a transaction processing code and the input destination as keys, the transaction control part 13 extracts the input/output destination information from a transaction definition file 16 and outputs it to the application program.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a UNIX transaction processing system, and more particularly to a data input / output control system in transaction processing.

[0002]

2. Description of the Related Art Conventionally well-known data processing systems, that is, an input / output control device for controlling data input from an input device and data output to an output device, and operation of the input / output device and the input / output control device. A data processing system having a processing device for managing the above has been realized in various forms in a general-purpose host computer. For example, as an example of an input / output control system in a general-purpose computer, Japanese Patent Laid-Open No.
In the input / output control method described in detail in Japanese Patent Laid-Open No. 2-5460, an input / output program is provided in an operating system having an input / output control program for driving and controlling hardware and an execution control program for executing an application program. With the addition, deletion, and modification of hardware by unifying the entrance for hardware access to be provided and at the same time by providing the input / output control management program that manages entrance registration, execution, addition, and deletion of the input / output control program The changes to the application program were kept to a minimum.

On the other hand, UNIX has been an operating system which has been popularized mainly by technical application programs in the past, but in recent years, it has an open standard that does not depend on a specific manufacturer, and an excellent user. It has attracted attention because it has an interface, and because it is written in C language, it has good portability, and the data processing system that was used on a general-purpose host computer is now being ported to UNIX. It was

However, in UNIX, the mechanism for driving the input / output control program and the application program as described above is not provided by the operating system, and when inputting / outputting data, the target input / output device, For example, it was necessary to specify a file, a database, another computer on the network, etc., and then incorporate an input / output process for each application. Therefore, it is necessary to modify the application program in order to cope with the system configuration change and the input / output device specification change.

[0005]

DISCLOSURE OF THE INVENTION The above-mentioned conventional UNI
With the I / O control method on X, if the system configuration such as I / O device is changed or if you want to run the same transaction processing system on multiple computers with different configurations, you need to modify the application program. Become. Further, it is necessary to incorporate a plurality of processes into each application program according to the specifications of the target input / output device.

An object of the present invention is to realize a transaction processing system on UNIX which can flexibly cope with a change of an input / output device by making a data input / output function independent from an application program and defining it on a file. .

[0007]

SUMMARY OF THE INVENTION A first invention is UNIX.
In a transaction processing system that performs input / output processing of data that operates above, an input device that inputs transaction data together with a processing code, and when the transaction data is acquired, the data is edited in a predetermined format and then stored in an input queue. An input control unit that outputs a transaction activation request together with the processing code, and upon receiving the transaction activation request, refers to a transaction definition file provided in advance by the processing code and adds an input / output destination information to an application program corresponding to the processing code. And a transaction control unit to be activated, and based on the input / output destination information, reads the transaction data from the input queue and performs a predetermined process on the transaction data. An application program for storing completed transaction data in an output queue provided in advance and outputting a data output request, and an output device provided in advance for reading the processed transaction data from the output queue in response to the data output request And an output control unit for outputting to.

The second invention is the same as the first invention,
The transaction definition file uses the information about the input queue and the input control unit, which are the input destination of the processing code and the transaction data, as a key, the application program to be activated, and the output queue and the output control unit which are the output destinations. It is characterized by being able to specify information regarding.

[0009]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the transaction processing system of the present invention.

In FIG. 1, the application program 14 is assumed to perform transaction processing for acquiring data from the input device 10 and processing the data, and then outputting the data to the output device 19.

In this embodiment, the input device 10 and the output device 1
The input control unit 12, the output control unit 18, the input queue 11, and the output queue 17 are provided between the application program 14 and the application program 14, and the application program 14 does not directly access the input / output device. In order to access the input / output control units 12 and 18, the application program 14 includes an initial process 151 and a read process 15 as a unified interface.
2. A write process 153 and an end process 154 are provided.

The application programs 14 are all activated by the transaction control unit 13, and the information necessary for activating the application programs 14 is defined in the transaction definition file 16.

Next, the operation of this embodiment will be described according to the flow of data.

In the input device 10, the generated transaction data has a code by which the transaction data should be processed (hereinafter referred to as a transaction code).
Is added.

The input control unit 12 acquires the transaction data from the input device 10, edits the data into the input data format of the application program, and then
Stored in the input queue 11. At this time, if necessary, data processing such as code conversion is performed.

Since the data acquired from the input device includes the transaction code, the input control unit 12
Retrieves the code and requests transaction activation 1
02 is sent to the transaction control unit 13.

Upon receipt of the transaction activation request 102, the transaction control unit 13 refers to the transaction definition file 16 based on the transaction activation request 102 and activates the corresponding application program 14. The transaction definition file 16 includes a transaction code and transaction data input destination (input control unit 1
2, input queue 11), application program name, transaction data output destination (output control unit 1
8, output queue 17) and the like are defined so that the application program to be started and its input / output destination can be specified by using the input destination of the transaction code and the transaction data as a key.

The transaction control unit 13 supplies the input / output destination defined in the transaction definition file 16 to the application program 14 as information when the application program 14 is started.
This information is stored in the application interface 151,
Referenced in 152, 153, 154.

The application program 14 performs data input / output processing via the application interfaces 151, 152, 153, 154 provided by the present invention. That is, after performing the initial processing 151,
Transaction data is read in d process 152,
Perform transaction processing. Thereafter, the write process 153 is used to store the data in the output queue, and then the data output request 107 is sent to the output control unit 18. Since the data input / output destination is held in the application interface, there is no need to be aware of it from the application program.

The output control unit 18, which has received the data output request 107, acquires the corresponding data from the output queue 17,
It is edited according to the specifications of the output device 19 and output to the output device 19.

[0022]

As described above, according to the present invention, the input / output processing is made independent from the application program, and the input / output path of the application program is defined in an external file, so that the system configuration can be easily changed. There is an effect that can be done. Further, even when the same transaction processing system is operated on a plurality of computers having different configurations, it is only necessary to change the transaction processing definition described in the file, so that there is an effect that the system can be easily maintained.

Further, complicated input / output processing is performed by the input / output control unit, and the interface with the input / output control unit is read,
By providing the instructions such as write to the application program in unification, it is not necessary to incorporate complicated processing into the application program, and it is possible to design without paying attention to a specific input / output device even when developing the application program. is there.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a transaction processing system of the present invention.

[Explanation of symbols]

 10 input device 11 input queue 12 input control unit 13 transaction control unit 14 application program 151 initial processing 152 read processing 153 write processing 154 termination processing 16 transaction definition file 17 output queue 18 output control unit 19 output device

Claims (2)

[Claims] 1. A transaction processing system for inputting / outputting data, which operates on UNIX, and an input device for inputting transaction data together with a processing code, and after the transaction data is acquired, after editing the data into a predetermined format. An input control unit that stores a transaction activation request together with the processing code in the input queue, and, upon receiving the transaction activation request, refers to a transaction definition file provided in advance by the processing code and refers to an application program corresponding to the processing code. A transaction control unit that starts by adding the input / output destination information, and the transaction data that is read and read from the input queue based on the input / output destination information. The application program that stores the processed transaction data in a previously provided output queue after performing the processing and outputs a data output request, and the processed transaction data from the output queue upon receiving the data output request. A transaction processing system comprising: an output control unit that reads out the data and outputs the data to an output device provided in advance. 2. The transaction definition file is
It is possible to specify the application program to be activated and the output queue and the output control section, which are the output destinations, by using the information about the input queue and the input control section, which are the input destinations of the processing code and the transaction data, as keys. The transaction processing system according to claim 1, which is characterized in that.