JP2639348B2 - Online program message receiving method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an online program message receiving method, and more particularly to a method for receiving a large number of terminals and a host computer.
Data delivery request message from terminal and its request of online program that controls data transmission / reception with computer
This relates to the processing method of the item .

[0002]

2. Description of the Related Art As prior art of the present invention, there is an invention entitled "Received Message Arrival Notification System" filed by the present applicant and disclosed in Japanese Patent Laid-Open Publication No. 1-222359. Figure 3 is a block diagram showing a configuration example of the prior art, when a plurality of terminals (Tei Ru only terminal 1 is displayed in Fig. 3) is connected to the host computer via the communication line 10, the host computer The online program 8 that operates above sends the reception notice instruction 5 to the reception message notification control unit 4, and instructs that the reception message specified by this instruction be sent to this online program.

[0003] Messages sent from a plurality of terminals are received by the message holding unit 2 and sent to the queuing mailbox 7.
Can be put in. The received message notification control unit 4 receiving the instruction from the online program 8 checks the queuing mailbox 7 and notifies the online program 8 if the message has already arrived, and if the message has not arrived, the message has not been received. The command is registered, and when a message corresponding to the command arrives, this is notified to the online program 8.

As described above, one online program issues a message receiving instruction for a message to be input to the program to a related organization of the host computer.
FIG. 2 is a flowchart showing the operation of the conventional online program after issuing a message receiving instruction.
25 indicate each program step. That is, conventionally, when a message receiving instruction is issued (step 21), the online program waits for the arrival of the received message without executing other program steps until the message of the command is received (step 22). ). Then, when the process for the received message (Step 25) is completed, the process returns to Step 21 and issues the next message receiving command.

[0005]

Generally, there is a considerable amount of time from the issuance of a message receiving instruction to the arrival of a received message, and during this time, there is no waiting for any processing. In the message receiving method of the conventional online program as described above, it takes a lot of processing time, and in order to execute processing for a large number of terminals within a desired time,
A large number of online programs are required, which requires a large amount of memory, and the control thereof is troublesome.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art, and a method for receiving an online program message using a small number of online programs to a large number of terminals , in particular, a large number of terminals. Host computer
An online program that controls data transmission to and from the computer.
Data distribution request message from the terminal of the program and its request
It is to provide an efficient processing method of matters .

[0007]

According to the present invention, there is provided an on-line program message receiving system which transmits and receives data between a plurality of terminals and a host computer for the plurality of terminals. A communication message transmitted from the plurality of terminals to the host computer, and the requirements of the communication message are provided.
Processing the online program, the processing of the communication text
In the message receiving method, after the online program issues a message receiving instruction to receive the data delivery request message from the terminal, the online program waits until the data delivery request message is received. A reception synchronization flag indicating whether to operate in a synchronous manner or to operate in a reception asynchronous manner to execute another program step until the data distribution request message is received; and data delivery requirements that require transmission and reception of data between the host computer from the terminal
A delivery request flag indicating whether or not a power request message has been received is provided.In the initial state, the reception synchronization flag is set to ON, and the reception of the data delivery request message is monitored exclusively,
When a data distribution request message is received from any terminal, the distribution requesting flag is set to on for the terminal that is the transmission source of the data distribution request message, and then the reception synchronization flag is set to off. When the reception synchronization flag is off, a data delivery request message arrives from any terminal.
The is between not be the online program executes the distribution processing of the distribution data to a terminal is set to turn on the delivery request flag is set on the reception synchronization flag when the data to be distributed processing has run out Features.

[0008] Further, the present invention is characterized in that the distribution request flag is all cleared at the time of initialization.

[0009] Further, the reception synchronization flag is in a state where the flag is in an off state, and no new distribution request message arrives ,
Further, characterized in that it is reset to the OFF state when the terminal said distribution request flag is on is no <br/> exist.

[0010]

According to the telegram receiving method of the online program of the present invention, a reception synchronization flag is provided, and when this flag is off and there is no received telegram, the online program executes another program step , that is, data distribution has already been performed.
Since the data distribution process to the terminal receiving the request message is executed, processing requests from a large number of terminals are received by one.
It is possible to process with one application program.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a flowchart showing an embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 2 denote the same steps, and the same processing is performed. In the present invention, a reception synchronization flag is provided, and when this flag is on, this online program does not execute other program steps until a data distribution request message from any terminal arrives. It is necessary only for data distribution
And waiting for the arrival of the required telegram, when this flag is off
When the data delivery request message does not arrive, another program step , that is, the data delivery request message has already been received
Is controlled to execute data distribution to the terminal that has been connected.

That is, initialization is performed at step 11, the reception synchronization flag is turned on, and the distribution request flag is cleared. Here, the distribution refers to a process of transmitting data from the host computer to the terminal or a process of transmitting data from the terminal to the host computer, and the terminal in which the distribution requesting flag is set performs distribution between the host computer and the terminal. Indicates that you are requesting.

Steps 21 and 22 are the same as those in FIG. 2, and if the determination in step 22 is NO, step 12
However, since the reception synchronization flag is ON, the process returns to step 22 and waits until a data distribution request message arrives. Although <br/> Ru moves to step 25 when there is a data delivery request message, in this embodiment data delivery request message at this time
Only the accepting process is performed. That is, after step 25, steps 18 and 19 are executed, the distribution requesting flag of the terminal is turned on, the reception synchronization flag is turned off, and the process returns to step 21 to issue the next message reception command. In response to this instruction, steps 18 and 18
When entering step 9, the flag is already on (step 18) and off (step 19), so step 1
Execution of 8, 19 has no effect.

When entering step 22 from step 19 through step 21, if the determination in step 22 is NO, the determination in step 12 is also NO.
Move to 3 and first receive the data distribution request in step 18
Since the distribution requesting flag of the terminal that has been turned on has been turned on, the process proceeds to step 14 and the distribution data distribution processing to the terminal is performed. Thus-out in the arriving data delivery request message to <br/> executes processing on data delivery request message in step 25, when not arrival of data delivery request message is distributed processing of the distribution data of step 14 To the terminal .
When the data end of the distribution data is reached, the determination in step 16 is entered, and the other end where the distribution requesting flag is on
If there is no end, the reception synchronization flag is turned on (step 17), and the next message reception instruction is issued.

As described above, in the online program message receiving method according to the present invention, a data delivery request message is received.
As long as there is work to be processed other than attaching processing (for example, distribution data distribution processing), these processings are executed while waiting for the arrival of a data distribution request message , so that processing by the application program can be performed efficiently. become.

[0016]

As described above, according to the present invention, processing requests from a large number of terminals can be processed by one online program, so that efficient processing can be performed and memory can be economically used. There are effects such as being able to be used.

[Brief description of the drawings]

FIG. 1 is a flowchart showing one embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a conventional device.

FIG. 3 is a block diagram illustrating a configuration example of a conventional device.

[Explanation of symbols]

 11 Initialization Step 12 Judgment Step (Reception Synchronization Flag On) 13 Judgment Step (Delivery Requested Terminal) 14 Distribution Data Distribution Processing Step 17 Reception Synchronization Flag On Step 18 Distribution Request Flag On Step 19 Reception Synchronization Flag Off Step 21 Message receiving instruction issue step 22 Judgment step (with received message)

Claims (3)

(57) [Claims] When transmitting / receiving data between a plurality of terminals and a host computer for the plurality of terminals, the data is provided to the host computer and transmitted from the plurality of terminals to the host computer. In a message receiving method related to the processing of the message, an online program for receiving the message and processing the requirements of the message includes a message receiving command for receiving the data delivery request message from the terminal. After the issuance, the online program waits until the data distribution request message is received.The online program operates in a reception synchronous mode, or another program step is executed until the data distribution request message is received. A reception synchronization flag indicating whether to operate in a reception asynchronous mode to be executed, and whether or not each of the plurality of terminals A distribution requesting flag indicating whether or not a data distribution request message requesting data transmission / reception with the host computer has been received; in an initial state, the reception synchronization flag is set to ON; Monitoring the reception of the data distribution request message, and when receiving the data distribution request message from any terminal, after setting the distribution request flag to ON for the terminal that is the transmission source of the data distribution request message, The reception synchronization flag is set to OFF, and when the reception synchronization flag is OFF, the online program sets the distribution requesting flag to ON while a data distribution request message does not arrive from any terminal. Control for executing distribution processing of distribution data to a terminal and setting the reception synchronization flag to ON when there is no more data to be distributed. A method for receiving a telegram of an online program, characterized by comprising means . 2. The control means clears the distribution request flag for all terminals at the time of initialization .
Message receiving method as in claim 1 wherein the online program characterized by that. 3. The control means according to claim 1 , wherein said reception synchronization flag is in an OFF state, no new distribution request message arrives, and a terminal whose distribution requesting flag is ON is present.
The electronic program receiving method for an online program according to claim 1 or 2 , wherein the reception synchronization flag is set to an on state when the information is not present .