JP2878159B2 - Transaction processing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to UNIX ( UNIX ).
X relates to a transaction processing system on a registered trademark , and more particularly to a data input / output control method in transaction processing.

[0002]

2. Description of the Related Art Hitherto, a widely known data processing system, 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 that manages data has been realized in various forms in a general-purpose host computer. For example, Japanese Patent Application Laid-Open No.
In the input / output control method described in detail in Japanese Patent Application Laid-Open No. 2-5460, 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, the input / output program By unifying the entrance for hardware access to be provided and providing an I / O control management program that manages entry, execution, addition, and deletion of the I / O control program at the same time, hardware addition, deletion, and change Changes in application programs were kept to a minimum.

[0003] On the other hand, UNIX has been an operating system that has been widely used mainly for technical application programs. However, in recent years, UNIX has an open standard that does not depend on a specific maker, and has an excellent user base. Attention has been paid to the fact that it has an interface, and because it is described in C language, portability is good. For example, a data processing system that has been performed on a general-purpose host computer has been ported to UNIX. Was.

However, in UNIX, a mechanism for driving the input / output control program and the application program as described above is not provided by the operating system. When data is input / output, a target input / output device, For example, it is necessary to specify input / output processing for each application after specifying a file, a database, another computer on a network, and the like. Therefore, in order to respond to a change in the system configuration or a change in the specifications of the input / output device, it is necessary to modify the application program.

[0005]

The above-mentioned conventional UNI
In the input / output control method on X, when the system configuration such as the input / output device is changed, or when the same transaction processing system is to be operated on a plurality of computers having different configurations, it is necessary to modify the application program. Become. Further, it is necessary to incorporate a plurality of processes into individual application programs 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 defining a data input / output function independent of an application program and defining it on a file. .

[0007]

A first invention is an input device.
Control data input from the device and data output to the output device
An operating system without a function to manage the operation of the input / output control device
I / O processing of data running on the operating system
A transaction processing system that performs
Input device for inputting the operation data together with the processing code.
And a predetermined file when the transaction data is obtained.
Edit the data in the format and store it in the input queue.
Together with the transaction code
An input control unit for outputting an operation request, and the transaction
When a start request is received, the processing code provides
Refer to the transaction definition file and add
Input / output destination information for the application program
A transaction control unit to be added and started;
The transaction from the input queue based on the
Transaction data
After performing a predetermined process on the transaction,
To store the transaction data in an output queue that is prepared in advance.
The application program that outputs the data output request
Program and the output queue in response to the data output request.
Read the processed transaction data from
An output control unit for outputting to an output device provided in advance.
The transaction processing system.
The transaction definition file contains the processing code and the
The input queue to which the transaction data is input
And start using the information about the input control unit as a key
Before the application program and output destination
Specify information about output queue and output control unit
It is characterized by being able to.

[0008]

[0009]

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

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

In FIG. 1, it is assumed that the application program 14 performs a transaction process of acquiring data from the input device 10, 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
An input control unit 12, an output control unit 18, an input queue 11, and an output queue 17 are provided between the application program 9 and the application program 14, so that 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, a read process 15
2, a write process 153 and an end process 154 are provided.

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

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

In the input device 10, a code for processing the transaction data (hereinafter referred to as a transaction code) is added to the generated transaction data.
Is added.

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

Since the data obtained from the input device includes the transaction code, the input control unit 12
Retrieves the code and issues a transaction start request 1
02 and notifies the transaction control unit 13.

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

When the application program 14 is activated, the transaction control unit 13 supplies the application program 14 with input / output destinations defined in the transaction definition file 16 as information.
This information is stored in the application interface 151,
152, 153, 154.

The application program 14 performs data input / output processing via application interfaces 151, 152, 153, and 154 provided by the present invention. That is, after performing the initial processing 151,
The transaction data is read in d processing 152,
Perform transaction processing. After that, the data is stored in the output queue by using the write process 153, 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 conscious of the application program.

Upon receiving the data output request 107, the output control unit 18 acquires the relevant data from the output queue 17,
The data 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 of the application program, and the input / output path of the application program is defined in an external file, so that it can easily cope with a change in the system configuration. 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 an input / output control unit, and an interface with the input / output control unit is read,
By unifying instructions such as write and providing them to the application program, there is no need to incorporate complicated processing into the application program, and even when developing the application program, it is possible to design without being conscious of a specific input / output device. is there.

[Brief description of the drawings]

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

[Explanation of symbols]

 DESCRIPTION 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 End processing 16 Transaction definition file 17 Output queue 18 Output control unit 19 Output device

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-5-120105 (JP, A) JP-A-65-2640 (JP, A) JP-A-4-14161 (JP, A) JP-A-5-105 181731 (JP, A) JP-A-5-250235 (JP, A) JP-A-5-265820 (JP, A) JP-A-5-274208 (JP, A) JP-A-6-230943 (JP, A) (58) Field surveyed (Int.Cl. ⁶ , DB name) G06F 12/00 G06F 3/14

Claims (1)

(57) [Claims] 1. A data input from an input device and a data input to an output device.
Manage the operation of the I / O controller that controls data output
Run on non-functional operating systems
Transaction processing system that performs data input / output processing
Transaction data with the processing code
The input device, and the transaction data
And then edit the data into a predetermined format
Stored in the post-input queue and together with the processing code
An input control unit that outputs a transaction start request to
When the transaction start request is received, the processing code
Refers to the transaction definition file prepared in advance by
Application program corresponding to the processing code
A transaction that starts a program with input / output destination information
Control unit and the input queue based on the input / output destination information.
Read the transaction data from the
Performed predetermined processing on transaction data
Post-processed output with transaction data in advance
Before storing in the queue and outputting the data output request
Application program and the data output request
Receiving the processed transaction from the output queue
Option data and output it to an output device provided in advance.
Transaction processing system having an output control unit
In the transaction definition file,
The input destination of the processing code and the transaction data
Information regarding the input queue and the input control unit.
The application program to be started as a key
And the output queue as the output destination and the output control
Translator characterized by the ability to specify information about a part
Action processing system.