JPH01219940A - Communication processing device - Google Patents

Abstract

PURPOSE:To always display real-time communication log information by displaying the communication log information in an idle time of execution of various communication processing tasks in multitask processing. CONSTITUTION:Based on a multitask monitor 3, various communication processing tasks 3a perform respective data communications and record protocol data used for transmission and reception as communication log information. After termination of macro processings, various communication tasks are in the holding state until being started from the outside. When all processing tasks are set to the holding state, the processing of a dummy task 3b is started. A macro call is started for the purpose of getting communication log information for display in the dummy task 3b. When this macro processing has communication log information to be displayed, this information is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication processing device, and more particularly, to a communication processing device that performs data communication based on a predetermined communication protocol.

[Prior Art] Conventionally, this type of device has been equipped with a multitask processing function using an online real-time system. According to this multitasking processing, a plurality of communication processing tasks are executed simultaneously from a macro perspective, so that processing efficiency is improved.

For example, when multiple communication processing tasks are performed by multitasking, log information during communication cannot be viewed at the end of communication, and if you want to view log information while data is being communicated, a dedicated communication log is required. An information display device may be installed or a dedicated task for displaying communication log information may be used.

[Problems to be Solved by the Invention] However, when a communication log information display device or a dedicated task for displaying communication log information is used as in the conventional example described above, a problem arises in that communication efficiency is reduced.

Therefore, the present invention has been made in view of the problems of the conventional example described above, and its purpose is to provide a communication processing device that can display communication log information without reducing communication efficiency during data communication. At the point.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the purpose, a communication processing device according to the present invention executes a plurality of communication processing tasks based on a multitask processing function by an online real-time system. , in a communication processing device that executes a dummy task during free time between the tasks, a detection means detects log information during communication by the dummy task; and a detection means detects log information detected by the detection means during execution of the dummy task. It is characterized by comprising a display means for displaying.

Further, the communication processing device is characterized in that it further includes re-display means for displaying the communication log information displayed by the display means again when all communication processing tasks are completed.

[Operation] According to the above configuration, communication log information can be detected and displayed during execution of one dummy task based on the multitask processing function of the online real-time system. Furthermore, communication log information can be displayed again when all communication processing tasks are completed.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic block diagram showing the configuration of a communication processing device according to this embodiment.

In the figure, 1 is a microprocessing unit (hereinafter referred to as rMPUJ) that controls the entire device, 2 is a control program, an error handling program, and a multitask monitor 3 performs monitoring control according to the flowchart shown in FIG. 3, which will be described later. RO that stores programs etc.
It is M.

A multi-task monitor 3 monitors various tasks in the program stored in the ROM 2. This cell task monitor 3 monitors multiple tasks, and under this monitoring, 3a is a communication processing task that connects to each terminal and performs data communication, and 3b is a communication processing task that performs data communication when one communication processing task is completed. This is a dummy task that uses free time to perform normal idling processing and display processing of communication log information, which will be described later. Note that these tasks include 1
Predetermined modules have a one-to-one correspondence, and communication processing procedures are determined according to each module.

Further, 4 is a RAM used as a work area for various processes and a temporary save area during error processing. This RAM
4, 4a is a communication log information storage area that stores the protocol data and task number used in the communication procedure of the communication processing task 3a as communication log information, and 4b is a communication log stored in the communication log information storage area 4a. This is a display information storage area that copies and stores communication log information that can be displayed in the information.

Further, 5 is an input unit equipped with various keys for instructing communication protocol procedures, and 6 is a display unit that displays information necessary for multitasking processing by the online real-time system, and 6 is a display unit that displays information necessary for multitasking processing by the online real-time system. can display communication log information.

Next, a method of storing communication log information when various communication processing tasks are executed will be explained using FIG. 2.

FIG. 2 is a diagram showing the memory contents of the communication log information storage area 4a according to this embodiment. In the figure, communication log information No. 1 to No. β10m has already been stored in the communication log information storage area 4a. A successive pointer is located at the first address where the communication log information is stored, and a reference pointer is located at the address of the first communication log information to start displaying. Further, a write pointer is located at the start address at which writing of communication log information starts.

Therefore, when the successive pointer and the write pointer point to the same position, this indicates that no communication log information has been recorded yet. Further, when the reference pointer and the write pointer indicate the same position, this indicates that there is no communication log information to be displayed.

Next, we will discuss the control operation for monitoring the entire processing operation in the third section.
This will be explained using figures.

FIG. 3 is a flowchart showing the monitoring operation of the multitask monitor 3 according to this embodiment.

First, in the monitoring operation, if all communication processing tasks are on standby, use this free time to
The process shifts to a dummy task that performs operations such as blinking an ED (light emitting diode) or displaying communication log information (step S2). Further, if even one communication processing task issues an activation request, the process moves to communication processing to be described later (step S3).

After executing the dummy task or performing the communication process, it is determined whether or not to end the communication process based on the multitask monitor 3, and if the communication process is to be continued, the process returns to step S1 and ends again. When proceeding to the operation, the reference pointer explained in FIG. 2 is moved to the position of the successive pointer (step S5). Furthermore, the communication log information display operation is started from the moved position of the reference pointer. In this case, when one piece of communication log information is read out, the reference pointer is moved by one position and the display operation is repeated in sequence. In this way, when the position of the reference pointer for reading communication log information moves to the position of the write pointer, the display process ends (step S6), and the multitasking monitor 3
Ends the monitoring process.

In addition, in the general monitoring operation of the communication processing described above,
A more detailed explanation is given below.

Therefore, the communication process shown in step S3 above will be explained using FIG. 4.

FIG. 4 is a flowchart showing communication processing according to this embodiment.

First, a communication processing task is selected based on the priority determined by the multitask monitor 3 (Step 5100), and communication processing corresponding to the communication processing task is executed (Step 5IOI).
). Then, the write pointer in the communication log information storage area 4a is moved by one place (step 5102).

In this way, communication processing has the function of sequentially moving the write pointer in accordance with the recording of communication log information.

Next, the dummy task 3a shown in step S2 above will be explained using FIG. 5.

FIG. 5 is a flowchart showing the control operation of the dummy task 3a according to this embodiment.

First, various communication processing tasks operating under the supervision of the multitask monitor 3 execute respective data communications, and at the same time record protocol data used for transmission and reception as communication log information. In addition, when recording communication log information, the name of the communication log information storage area 4a is treated as a parameter, and this parameter is used as a parameter in the multitasking monitor 3.
This is done by making a macro call to .

When the macro processing is ended in this way, various communication processing tasks are placed in a standby state until they are activated from the outside, and when all communication processing tasks are placed in a standby state, the processing of the dummy task 3b is started.

Therefore, the processing operation of the dummy task 3b will be explained using FIG. 5.

First, when processing is transferred from the multitask monitor 3 to the dummy task 3b, a macro call is started in the dummy task 3b to obtain communication log information for display.

In the macro processing using this macro call, first, the reference pointer and write pointer of the communication log information storage area 4a shown in FIG. 2 are detected and compared (step 5200,
Step 5201). At this time, if the reference pointer has not reached the write pointer position, read one piece of communication log information at the position indicated by the reference pointer.Step 5
202), this read communication log information is written in the display information storage area 4b (step 5203). Then, update the position of the reference pointer by one (step 5204)
.

The processing from step 5200 to step 5204 described above is macro processing for obtaining communication log information for display.

Further, based on the communication log information stored in the display information storage area 4b, protocol data and the like corresponding to the task number are displayed on the display unit 6 (step 5205).

In this way, if there is communication log information to be displayed, the communication log information by the communication processing task stored at the position of the reference pointer is displayed.

Next, an idle process including normal LED blinking, etc. is performed, and the process returns to step S1, where the process of the dummy task 3b described above is repeated until the reference pointer position and the write pointer position become equal. .

When the positions of the reference pointer and the write pointer become equal in step S2, the process returns to the monitoring process by the multitask monitor 3.

As described above, according to this embodiment, communication log information can be displayed during idle time due to execution of various communication processing tasks in multitasking processing, so communication log information is always displayed in real time without reducing the communication efficiency of communication processing. It is possible to provide a communication processing device that displays.゛In addition to displaying real-time communication log information during communication processing, all communication log information recorded during communication can be displayed after all communication processing is completed, making it easy to detect errors such as communication interruption due to malfunction. Not only is it effective, but it also makes it possible to grasp the overall flow of protocol data, etc. during communication processing.

[Effects of the Invention] As described above, according to the present invention, communication log information can be displayed during idle time due to execution of various communication processing tasks in multitasking processing, so communication log information can be displayed at all times without reducing the communication efficiency of communication processing. A communication processing device that displays real-time communication log information can be provided.

Furthermore, since communication log information can be displayed again after communication processing is completed, the flow of communication can be grasped.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram showing the configuration of the communication processing device according to the present embodiment, FIG. 2 is a diagram showing the memory contents of the communication log information storage area 4a according to the present embodiment, and FIG. 3 is a multitasking diagram according to the present embodiment. FIG. 4 is a flowchart showing the monitoring operation of the monitor 3, FIG. 4 is a flowchart showing the communication processing according to this embodiment, and FIG. 5 is a flowchart showing the control operation of the dummy task 3a according to this embodiment. In the figure, 1...MPU, 2...ROM, 3...Multi-task, 3a...Communication processing task, 3b...Dummy task, 4...RAM, 4a...Communication log information storage area, 4b...display information storage area, 5...input section, 6...display section. Patent applicant Canon Co., Ltd. Figure 2 Figure 3

Claims (2)

[Claims] (1) In a communication processing device that executes multiple communication processing tasks based on the multitask processing function of an online real-time system and executes a dummy task in the free time between the tasks, the dummy task records log information during communication. A communication processing device comprising: a detection means for detecting; and a display means for displaying log information detected by the detection means during execution of the dummy task. (2) The communication processing device further comprises re-display means for displaying the communication log information displayed by the display means again when all communication processing tasks are completed.