JPH04273363A - Message store/transmission control system - Google Patents

Abstract

PURPOSE:To improve the processing efficiency in the system by limiting the using capacity of a message transmission buffer, storing the messages in a message store control file if the messages exceed the limited using capacity of the buffer so as not to secure the unnecessary buffers, and setting an output message transmission buffer in a main storage only. CONSTITUTION:The capacity is limited for a message transmission buffer 8 which is controlled by a message control part 7 in an on-line system. When the messages exceed the limited capacity of the buffer 8, a message store control file 6 stores the messages. Then a message store processing part 4 is added to control the store of the transmission messages to the file 6 together with a message selection processing part 5 which selects a message in accordant with transmission, and a message transmission processing part 3 which controls the transmission of messages based on the using state of the buffer 8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a message storage and transmission control system, and more particularly to a message storage and transmission control system for controlling message transmission in an online system by controlling message storage.

0002

2. Description of the Related Art Conventionally, regarding message transmission in an online system, as shown in FIG. 4, in response to a message transmission request from a business processing program 13, a message management section 14 of an OS transmits the request to an accepting terminal. At this time, messages are accumulated in the message transmission buffer 15 of the OS, but when message transmission requests from the business processing program 13 concentrate, a large amount of messages temporarily stay in the message transmission buffer 15 of the OS. For this reason, the capacity of the message transmission buffer 15 of the OS has been secured in consideration of the maximum message retention.

0003

[Problems to be Solved by the Invention] In the message transmission control of the conventional online system described above, when a transmission request from a business processing program occurs, it is accumulated in the OS resources, which is problematic in systems with a large number of terminals. A system in which a large number of messages are generated has the disadvantage that the capacity of the message transmission buffer of the OS must be set large. Additionally, measures are taken to secure message sending buffers in external storage devices outside the main storage device, but when using external storage devices, the message management processing of the OS is more difficult than in the main storage device. The disadvantage is that efficiency is reduced.

0004

[Means for Solving the Problems] The message storage and transmission control method of the present invention provides a method for controlling OS (OS) in an online system.
A message storage management file that limits the capacity of message sending buffers owned by the operating system (operating system) and stores sent messages when they cannot be stored in the message sending buffer, and a message storage management file that stores sent messages in the message management file. The system is configured to include controlling means, means for selecting a message suitable for transmission from among the accumulated messages, and means for controlling message transmission according to the usage status of the message transmission buffer of the OS.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, 1 is a message storage and transmission control unit;
2 is a business processing program, 3 is a message transmission processing section,
Reference numeral 4 represents a message storage processing section, 5 a message selection processing section, 6 a magnetic disk device as a message storage management file, 7 a message management section of the OS, and 8 a buffer for message transmission used by the OS. As part of this operation, the message transmission buffer 8 is effectively used by passing the message transmission request from the business processing program 2 to the message storage and transmission control section 1.

[0007] The message sent from the business processing program 2 is delivered to the message storage processing section 4 . The message storage processing section 4 divides the transmitted message into blocks of a certain length. Within the message storage and transmission control section 1, control is performed in units of blocks into which this transmission message is divided. If there is a certain amount of empty space in the output message transmission buffer 8, the message storage processing section 4 delivers a preset number of transmission message blocks to the message transmission processing section 3. The remaining transmission message blocks are stored in the message storage management file 6.

[0008] The message selection processing section 5 operates when a certain amount of empty space occurs in the message transmission buffer 8, selects a message suitable for transmission from among the messages stored in the message storage management file 8, and selects a message suitable for transmission. It is delivered to the transmission processing section 3. The trigger for the operation of the message selection processing section 5 is such that when a certain amount of space becomes available in the output message transmission buffer 8, the message management section 7 notifies the message transmission processing section 3, and control is passed to the message selection processing section 5. It has become.

When the message transmission processing section 3 receives a transmission message block from the message storage processing section 4 or the message selection processing section 5, it requests the message management section 7 to transmit the transmission message block. The message management section 7 stores the transmission message block in the message transmission buffer 8, and deletes it from the message transmission buffer 8 when the transmission to the terminal is completed. At this time, the message transmission processing section 3 is set to be notified if a certain amount of space becomes available in the message transmission buffer 8. The message transmission processing section 3 notifies the message storage processing section 4 and the message selection processing section 5 of this notification.

The flow of the transmission message block and the usage pattern of the message transmission buffer 8 will now be described in detail.

FIG. 2 is an explanatory diagram of a transmission message control system. In the figure, 6 is the message storage file, 8 is O
This is a message sending buffer for S, and (1) to
(8) shows the status of the output message buffer for message transmission as time changes; 9 is the transmission message passed from the business processing program 2;
1] to [6] represent transmission message blocks. Below, the processing method for message storage and transmission control is (1) corresponding to the states (1) to (8) of the message transmission buffer 8.
This will be explained in (8). In the example of FIG. 2, the capacity of the message transmission buffer 8 is set to accommodate three transmission message blocks, and the message transmission buffer 8 is set to have a capacity that can accommodate three transmission message blocks.
The notification is set to occur when two blocks become empty in the block/message transmission buffer 8. (1) The transmission message 9 is sent by the message selection processing section 5
It is divided into blocks of a certain length ([1] to
[6] block). Since the output message buffer 8 is empty, blocks [1] and [2] are stored in the output message buffer 8 via the message transmission processing section 3. The message management unit 7 transmits block [1] to the terminal. The message selection processing unit 5 uses the remaining blocks [3] to
[6] is stored in the message storage management file 6. (2) When the transmission of block [1] is completed, block [1] is deleted from the output message buffer 8. At this time, since there are two empty blocks in the message transmission buffer, a selection request is made from the message management section 7 to the message selection processing section 5 via the message transmission processing section 3. Block [2] is sent to the terminal. (3) The message selection processing unit 5 selects blocks [3] and [4] from the message storage management file 6, and stores them in the output message buffer 8 via the message transmission processing unit 3. (4) When the transmission of block [2] is completed, block [2] is deleted from the output message buffer 8, and block [3] is transmitted to the terminal. (5) When the transmission of block [3] is completed, a selection request is made to the message selection processing unit 5 under the same control as in (2), and at the same time, block [4] is transmitted to the terminal. (6) Blocks [5] and [6] are stored in the message storage management file 8 under the same control as in (3). (7) When block [4] completes transmission, block [
5] is sent to the terminal. At this time, a selection request is made to the message selection processing section 5, so that if a message to be sent to the same destination is stored in the message storage management file 6, it is selected and sent. (8) Block [6] is sent to the terminal.

Each transmission message block is transmitted in this manner, and the manner in which the message storage management file is used at this time will be described below.

FIG. 3 shows a data structure diagram of the message storage management file. In the figure, 10 represents a destination management record, 11A and 11B represent message management records, and 12A to 12D represent message block records.

[0014] Transmission message blocks can be stored and managed for each destination, thereby improving search efficiency during storage or selection processing of transmission message blocks. For this reason, a destination management record 10 is set for each destination, and each transmitted message block is stored as message block records 12A to 12D. At this time, in order to efficiently control even if multiple messages occur at the destination, message priorities are set when passing messages from the business processing program, and message management records 11A and 11B are set in priority order. I try to create it every time. This allows for message transmission control to be performed in the order that meets business processing requests.

[0015]

[Effects of the Invention] As explained above, the present invention limits the amount of message sending buffers owned by the OS message management in an online system, and when this capacity is exceeded, the messages are accumulated in the message storage management file. This has the effect that there is no need to reserve an extra buffer for message transmission. Further, by setting the message transmission buffer owned by the OS message management only in the main memory, there is an effect of improving the processing efficiency of the OS.

[Brief explanation of the drawing]

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

FIG. 2 is an explanatory diagram of a transmission message control method according to an embodiment of the present invention.

[Figure 3] Data structure diagram of the message storage management file in Figure 1

[Fig. 4] Block diagram showing the configuration of a message storage and transmission control system according to conventional technology

[Explanation of symbols]

1 Message accumulation and transmission control section 2 Business processing program 3 Message transmission processing section 4 Message accumulation processing section 5 Message selection processing section 6 Message accumulation management file 7 OS
Message management 8 (used by the OS) Output message buffer 9 (passed from the business processing program)
Transmission message 10 Destination management records 11A to 11C Message management record 12A
~12D Message block record 13
Business processing program

Claims (1)

[Claims] Claim 1: In an online system, an OS (
A message storage management file that limits the capacity of message sending buffers owned by the operating system (operating system) and stores sent messages when they cannot be stored in the message sending buffer, and a message storage management file that stores sent messages in the message management file. The present invention is characterized by comprising means for controlling, means for selecting a message suitable for transmission from among the accumulated messages, and means for controlling message transmission according to the usage status of the message transmission buffer of the OS. Message storage and transmission control method.