JPH0962592A - Message processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently confirm transmission on the transmission side. SOLUTION: When a message transmission request occurs, a sequence number giving means 1 acquires an idle sequence number from an unused record link in an idle sequence number management table and sets the address of a message management table to the record indicated by the acquired idle sequence number. A message transmission means 2 sets the sequence number, which the sequence number giving means acquires, to a request message to transmit it to the communication system of the other party. When receiving a response message from the communication system of the other party, a transmission message retrieval means 3 retrieves the message management table managed in the idle sequence number management table based on the sequence number set in this response message.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a message processing system in computer communication, and more particularly to a message processing system for confirming delivery of a request message.

[0002]

2. Description of the Related Art In a conventional message processing method, when a request message is transmitted, a local side communication management program, as shown in FIG. Table 1-
1 is taken out from the empty message management table queue (not shown), the sequence number is stored in the taken out table 1-1, the NEXT address and the BACK address are added, and the request message is linked. A sequence number is added to the request message and the request message is sent to the destination. The partner communication program that received the request message adds the sequence number set in the request message to the response message and returns the response message. Upon receiving the response message, the self-side communication program traces the sequence number in the response message, compares it with the sequence number reserved in the table by tracing the link of the message management table link, and searches for the same one. If the response message is an affirmative response to the communication managed by, the communication is continued, and if it is a negative response, the communication is terminated.

[0003]

In the above-mentioned conventional message processing system, when a large number of request messages are continuously transmitted, the message management table linked to the end of the message management table link shown in FIG. When the response message having the sequence number corresponding to is received, since the table link is traced from the beginning, it takes time to search the message management table, and there is a drawback that the search efficiency is poor.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a message management table for managing a transmission message and a table for managing an empty sequence number, in which the record position of each record constituting the table is a sequence. The empty sequence number is managed by the link of the unused record and an empty sequence number management table in which the message management table address is set is set in the used record in advance, When a message transmission request is generated, an empty sequence number is acquired from the unused record link in the empty sequence number management table, and a sequence number for setting the address of the message management table in the record indicated by the acquired empty sequence number And a means for applying Message numbering means for setting the sequence number acquired by the sequence number assigning means in the request message and transmitting it to the communication system on the other side, message receiving means for receiving the response message, and receiving the response message in the response message. Transmission message search means for searching the message management table managed in the empty sequence number management table based on the set sequence number, and the other side communication system receives the request message. Then, there is provided return means for setting the sequence number set in the request message and returning it in the response message.

[0005]

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

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a table structure used in this embodiment.

In FIG. 2, table 2-1 shows that the address of the empty sequence number is the FIRST address and the LAST.
It is managed by address. The table 2-2 is composed of records arranged in sequence number order, and the position of the record from the upper part of the table 2-2 indicates the sequence number. Unused records are linked to each other to manage empty sequence numbers, and used records are managed by sending messages by storing the address of the message management table 2-3. The record address of the first empty sequence number in Table 2-2 is the empty sequence number FI of Table 2-1.
The record address of the next empty sequence number is set in the record of the specified empty sequence number, and the record address of the next empty sequence number is set to the record address of the next empty sequence number. It has a structure to be set. Therefore,
When the system is started up, all records are linked from top to bottom, and when an empty sequence number is assigned thereafter, message management is performed on the record pointed to by the empty sequence number FIRST address in Table 2-1. The address of the table 2-3 is set, and the empty sequence number FIRST address of the table 2-1 is set to the address of the next empty sequence number.

From the sequence number, Table 2-
When searching for 3, table 2 from the sequence number
-2, the corresponding record is obtained, and the address of the table 2-3 stored in the obtained record is obtained. After that, the address to the newly empty sequence number is set in the empty sequence number LAST address of the table 2-1 and the new empty sequence number is set in the record indicating the empty sequence number LAST address up to that point. To the record of the newly emptied sequence number.

When a message transmission request is generated in the own side communication program, the sequence number assigning means 1 acquires an empty sequence number from the empty sequence number FIRST address of the table 2-1 and adds it to the record of the acquired empty sequence number. Is a message management table 2-3 retrieved from an empty message management table queue (not shown)
Is set, and the record address of the next empty sequence number is set in the empty sequence number FIRST address of the table 2-1.

The message sending means 2 sets the sequence number acquired by the sequence number giving means 1 in the request message and sends it to the partner communication program.

Upon receiving the request message, the partner communication program sets the sequence number set in the request message in the response message and returns it (not shown).

When the message receiving means 4 receives the response message, the transmission message searching means 3 controls the message management table managed in the table 2-2 based on the sequence number set in the response message. Search 2-3. This, as mentioned above,
This is performed by extracting the record corresponding to the sequence number from the table 2-2. If the received response message is an affirmative response, the communication is continued by the transmission message previously stored in the retrieved message management table, and if it is a negative response, the communication is terminated. The record address of the unnecessary sequence number is set to the empty sequence number LAST address in the table 2-1 as described above, and the queuing process is performed as the empty sequence number.

As described above, according to the present invention, from the sequence number included in the response message to the table 2
By indexing -2, it is possible to immediately search the message management table.

[0014]

As described above, according to the present invention, even if a large number of transmission messages are transmitted, the message management table is immediately searched by indexing the table 2-2 from the sequence number included in the response message,
By making it possible to retrieve the corresponding transmission message, there is an effect that the retrieval efficiency is improved.

[Brief description of drawings]

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

FIG. 2 is a diagram showing an example of a table configuration used in this embodiment.

FIG. 3 is a diagram showing a table configuration example in a conventional example.

[Explanation of symbols]

 1 Sequence Number Assigning Means 2 Sequence Sending Means 3 Send Message Searching Means 4 Message Receiving Means 1-1, 2-3 Message Management Table

Claims (1)

[Claims] 1. A message management table for managing a transmitted message, and a table for managing an empty sequence number, wherein a record position of each record constituting the table indicates a sequence number, and the empty sequence number is An empty sequence number management table in which the message management table address is set is provided in advance in the record in use while being managed by the link of the unused record, and when the local communication system issues a message transmission request, Sequence number giving means for obtaining an empty sequence number from the unused record link in the empty sequence number management table and setting the address of the message management table in the record indicated by the obtained empty sequence number; Means take A message transmitting means for setting the obtained sequence number in a request message and transmitting it to the communication system on the other side, a message receiving means for receiving a response message, and the message set in the response message when the response message is received. Transmission message search means for searching the message management table managed in the empty sequence number management table based on the sequence number, and when the communication system on the other side receives the request message, the request message is displayed. A message processing method, comprising: a return unit that sets the sequence number that has been set and returns the response message.