JPH02212962A - Transaction message output control system - Google Patents

Abstract

PURPOSE:To reduce the manhour of program generation and a program resource by suppressing the execution of an application program by stopping once a new transaction schedule when an output message storage becomes insufficient. CONSTITUTION:A transaction schedule means 4 started by a message inputting means 2 decides whether the load state of the output message information area 9 is in an overload state or not according to load information stored in an output message storage area load information area 5. If it is in the overload state, the taking-out of the registered transaction processing request message from a transaction schedule queue is stopped once so that the execution of the application program is controlled. Then, by avoiding a state that the output message storage area is insufficient, an output message transmission request from the application program is made not to be refused. Thus, the increase of the program generating manhour and the program resource can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transaction message output control method, and particularly to a transaction message output control method in a transaction processing system.

[Conventional technology]

Conventionally, this type of transaction message output fi1
In the m method, when a large amount of output messages (messages resulting from transaction processing to be output to a terminal device) occurs and the output message storage area becomes insufficient and the output messages cannot be stored, the output messages from the application program are A transmission request to the terminal device (hereinafter referred to as an output message transmission request) was rejected.

In this case, the application cage 5 program outputs the output message by repeating the output message transmission request until the output message transmission request is accepted, or by temporarily saving the output message to a file. I was guaranteeing the message.

[Problem to be solved by the invention]

In the conventional transaction message output control method described above, an output message transmission request from an application program is rejected when the output message storage area is insufficient. If left unaddressed, output messages may be lost, which can be a serious obstacle in transaction processing.

Furthermore, in order to guarantee output messages, it is necessary to add processing for guaranteeing output messages to all application programs, resulting in an increase in program creation man-hours and program resources.

In view of the above-mentioned points, an object of the present invention is to eliminate the loss of output messages by avoiding a situation where the output message storage area runs out and preventing output message transmission requests from application programs from being rejected. Another object of the present invention is to provide a transaction message output control method that eliminates the need to add processing for guaranteeing output messages to an application program, thereby preventing increases in program creation man-hours and program resources.

[Means to solve the problem]

The transaction message output control method of the present invention is as follows:
In a transaction processing system that inputs a transaction processing request message requesting transaction processing from a terminal device connected via a communication line, executes an application program, and outputs an output message representing a transaction processing result to the terminal device, the terminal device a message input means for receiving a transaction processing request message input from and registering it in a transaction schedule queue for each task on an input message storage area, and registering the transaction processing request message in the transaction schedule queue by the message input means; When the specified time elapsed notification is received from the timer function, the output message storage area is overloaded by referring to the output message storage area load information area in which load information indicating the load status of the output message storage area is stored. If the output message storage area is not overloaded, one registered transaction processing request message is retrieved from the transaction schedule queue and passed to the transaction execution control means, and if the output message storage area is overloaded, the message is retrieved from the transaction schedule queue. transaction scheduling means for temporarily stopping the retrieval of registered transaction processing request messages and starting the timer function by specifying a time interval; The timer function notifies the scheduling means of the elapse of a specified time, and the application program starts a task to process the transaction processing request message passed from the transaction scheduling means and passes the transaction processing request message to the application program. the transaction execution control means for controlling the execution of the application program and passing an output message from the application program to the message output means; and sending the output message passed from the transaction execution control means to the output camera to reach the terminal device. and an output message storage area monitor that monitors the load state of the output message storage area and stores the load information in the output message storage area load information area. means.

[Effect]

In the transaction message output control method of the present invention, the message input means receives the transaction processing request message input from the terminal device, registers it in the transaction schedule queue for each task in the input message storage area, and the transaction schedule means receives the transaction processing request message input from the terminal device. Output in which load information indicating the load status of the output message storage area is stored when a transaction processing request message is registered in the transaction schedule queue by the message input means and when a specified time elapse notification is received from the timer 81 function. Refers to the message storage area load information area, and if the output message storage area is not overloaded, extracts one registered transaction processing request message from the transaction schedule queue and passes it to the transaction execution gIi1m means Output message storage area If the transaction scheduler is overloaded, it temporarily stops fetching registered transaction processing request messages from the transaction schedule queue, specifies a time interval, starts the timer function, and specifies the timer function from the transaction scheduler. When the time interval has elapsed, a specified time elapse notification is sent to the transaction scheduling means, and the transaction execution control means starts a task to process the transaction processing request message passed from the transaction scheduling means and requests the transaction processing. After passing the message to the application program and controlling the execution of the application program and passing the output message from the application program to the message output means, the message output means registers the output message passed from the transaction execution control means in the output message storage area. When it is confirmed that the message has been sent to the terminal device and has reached the terminal device, it is deleted from the output message storage area, and the output message storage area monitoring means monitors the load status of the output message storage area and outputs the load information to the output message storage area. Store in the load information area.

〔Example〕

Next, 1. the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a transaction processing system 20 to which a transaction message output control system according to an embodiment of the present invention is applied. This transaction processing system 2o is connected to the terminal device 1 via a communication line, and includes a message input means 2, an input message storage area 3, a transaction schedule means 4, and an output message storage area load information [5]. ,
It is composed of a transaction execution Ill#s means 6, an application program 7, a message output means 8, an output message storage WI area 9, an output message storage area monitoring means 10, and a timer function 11.

Referring to FIG. 2, the processing in the transaction scheduling means 4 includes an output message storage area load information area reference step 41, an overload state determination step 42, a registered input message retrieval step 43, and a transaction execution control means activation step. 44, a timer function activation completion determination step 45, a timer function activation step 46, and a specified time elapse notification reception step 47.

Referring to FIG. 3, the processing in the output message storage area monitoring means IO includes an output message storage area reference step 101, an output message storage area free status determination step 102, and an output message storage area load information area overload status ti presentation. It consists of a load information setting step 103 and an output message storage area load information area non-overload state presentation load information setting step 104.

Next, when a transaction processing request message requesting transaction processing is input from the terminal device l regarding the operation of the transaction processing message output control method of the present embodiment configured as described above, the message input means 2
receives the transaction processing request message and registers it in the transaction schedule queue for each task in the input message storage area 3. Below, registers the transaction processing request message registered in the transaction queue for each task. (referred to as a completed input message), the transaction scheduling means 4 is activated.

The transaction scheduling means 4 started by the message input means 2 refers to the output message storage area load information area 5 (step 41), and stores the output message based on the load information stored in the output message storage area fungus information area 5. It is determined whether the load state of the area 9 is an overload state (step 42), and if it is not an overload state, the transaction scheduling means 4
, one registered input message is taken out from the transaction schedule queue for each task (step 43), and the transaction execution 111m means 6 is activated to pass the registered input message (step 44).
, control is returned to step 41.

If it is determined in step 42 that there is an overload condition,
The transaction scheduling means 4 determines whether or not the timer function 11 (timer function II is activated for each task) of the task for which the registered manual message is to be scheduled for transaction has been activated (step 45), and the corresponding task is Only when the timer function 11 has not been activated, the timer function 11 is activated by specifying a time interval (step 46), and then the process ends. As a result, the registered input message is no longer taken out from the transaction schedule queue, and the transaction schedule by the transaction scheduler 4 is temporarily stopped. Therefore, since the execution of the application program 7 is also suppressed, no output messages are generated, and the unloaded state of the output message storage area 9 is also released over time.

The timer function 11 activated by the transaction scheduler 4 sends a designated time elapse notification to the transaction scheduler 4 when the designated time has elapsed.

Transaction scheduling means 4 has timer function 1
If a specified time elapsed notification is received from step 1 (step 4)
7) The process starts from step 41. Therefore, refer to the output message storage area load information area 5.Step 41), determine the load status of the output message storage area 9.Step 42), if it is not overloaded. The transaction schedule will be restarted.

On the other hand, the transaction execution control means 6 started by the transaction schedule means 4 starts a task to process the registered input message passed from the transaction schedule means 4, passes the registered input message to the application program 7, and sends the registered input message to the application program 7. The program 7 is executed 1111 and an output message for the terminal bag Wl, which is a transaction processing result by the application program 7, is passed to the message output means 8.

The message output means 8, which has received the output message from the transaction execution control means 6, registers the output message in the output message storage area 9 and transmits it to the terminal device 1. Thereafter, when it is confirmed that the output message has reached the terminal device 1, the message output means 8 deletes the corresponding output message from the output message storage area 9.

The output message storage area monitoring means 10 is activated by the message output means 8 after the message output means 8 stores and deletes the output message in the output message storage area 9, and monitors the load state of the output message storage area 9.

That is, the output message storage area monitoring means IO activated by the message output means 8 refers to the output message storage header 9 (step 101) and determines whether the free space in the output message storage area 9 is less than M%. (Step 102) If the free space is less than M%, the output message storage area monitoring means IO stores the output message fJJ! in the output message storage area load information area 5. ! 9 is in an overloaded state (step 103), and the process ends. Further, if the free space is not less than M%, the output message storage area monitoring means 10
Load information indicating that the output message storage area 9 is not overloaded is set in the output message storage area load information area 5 (step 104'), and the process is terminated.

Note that the value of M is determined as follows.

If the output message storage area 9 is composed of areas of a certain size and one area is used for one output message, then M-MIXloo is obtained.

M is a value that guarantees an output message transmission request from the application program 7 that is already being executed in all tasks when the output message storage area monitoring means 10 determines that the output message storage area 9 is overloaded. It is.

In this way, the free space in the output message storage area 9 becomes M
% or less (when the output message storage area 9 becomes overloaded), the transaction schedule is temporarily stopped until the free space in the output message storage area 9 is restored to M% or more, and the output message storage area 9 Since it is possible to avoid a situation where there is a shortage of messages, it is possible to eliminate rejection of output message transmission requests from the application program 7.

〔Effect of the invention〕

As explained above, the present invention has an output memory storage fi.
Instead of rejecting requests to send output messages from application programs when Jl area is insufficient,
By temporarily stopping the new transaction schedule and suppressing the execution of the application program, the application program will no longer request to send an output message when the output message storage area becomes overloaded. In addition, all app cage programs no longer need to handle the case where a request to send an output message is rejected.
This has the effect of reducing program creation man-hours and program resources.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a transaction processing system to which a transaction message output control method according to an embodiment of the present invention is applied, and FIG. 2 is a flow chart showing processing in the transaction scheduling means in FIG. FIG. 3 is a flowchart showing the processing in the output message storage area monitoring means in FIG. In the figure, 1...terminal device, 2...message input means, 3...input message storage area, 4...transaction schedule means, output message storage area load information area, transaction execution control means, application program , message output means, output message storage area, output message storage area monitoring means, timer function, and transaction processing system. FIG. 3 Output message storage area monitoring means 10

Claims (1)

[Scope of Claims] Transaction processing that inputs a transaction processing request message requesting transaction processing from a terminal device connected via a communication line, executes an application program, and outputs an output message of the transaction processing result to the terminal device. The system includes: message input means for receiving a transaction processing request message input from the terminal device and registering it in a transaction schedule queue for each task on the input message storage area; When a transaction processing request message is registered and when a specified time elapsed notification is received from the timer function, the output message storage area load information area in which load information indicating the load status of the output message storage area is stored is stored, and the above-described process is performed. If the output message storage area is not overloaded, one registered transaction processing request message is retrieved from the transaction schedule queue and passed to the transaction execution control means, and if the output message storage area is overloaded, the transaction processing request message is retrieved from the transaction schedule queue and passed to the transaction execution control means. transaction scheduling means for temporarily stopping the extraction of registered transaction processing request messages from a queue and starting the timer function by specifying a time interval; the timer function notifying the transaction scheduling means of the elapse of a specified time; and activating a task to process the transaction processing request message passed from the transaction scheduling means and passing the transaction processing request message to an application program for execution of the application program. The transaction execution control means performs control and passes output messages from the application program to the message output means; and the transaction execution control means registers the output messages passed from the transaction execution control means in the output message storage area and then transmits them to the terminal device. The message output means deletes the message from the output message storage area when it is confirmed that the message has reached the terminal device, and the message output means deletes the message from the output message storage area after confirming that the message has reached the terminal device, and monitors the load state of the output message storage area and sends load information to the output message storage area load information area. 1. A transaction message output control method comprising: means for monitoring an output message storage area for storing a transaction message.