JPH08286994A - Program controlling method in communication terminal equipment - Google Patents

Abstract

PURPOSE: To reduce developing man-hours by enhancing portability in the case where an event-driven type and a polling type control programs having been utilized for a long time in a communication terminal equipment are integrated into one body. CONSTITUTION: In the case where the hardware control of the communication terminal equipment is executed under the control of one operating system, the event-driven type control program 22 to start processing corresponding to an extrinsic factor by that extrinsic factor and the polling type control program 23 to monitor repeatedly a line state and detect a starting factor are provided, and the polling type control program 22 operates in the case where there is the idle time of a CPU during which the event-driven type control program 23 does not operate, and as for the event-driven type control program 23, when a factor from the outside is generated, the control program in course of operation is changed to the event-driven type control program corresponding to the factor from the outside, and the event-driven type control program 23 operates.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program control method for operating a communication terminal device, and in particular, in a hardware environment composed of a single microcomputer system, there are two types of event drive type and polling type. The present invention relates to a program control method for operating a program.

[0002]

2. Description of the Related Art A communication terminal device is managed in the device by one microcomputer for each function and a program having a specific control method according to its function operation.

Microcomputers that operate individually for each function are combined and communicated with each other to operate in a load-balanced manner to achieve the function of one device.

For example, as an example of a communication terminal device for relaying data between an external terminal device and a communication line, a microcomputer having a communication function part for communicating with an external terminal device and a function part for centrally determining data relay is provided. There is an apparatus configured by managing by an event-driven control program, and managing a communication function unit with a communication line by another microcomputer and a polling-type control program.

The above-mentioned two microcomputers provide an interface area for communication and perform the function of the apparatus by transmitting and receiving data in a specific procedure in the command response.

In this example of the communication terminal device, by dividing the function into two microcomputers, the load applied to the device is dispersed when the data transmitted and received from the external terminal device side and the communication line side is frequently transmitted and received. ing.

[0007]

In recent years, by increasing the speed of microprocessors and increasing the functionality of peripheral LSIs, it has become possible to distribute the load on the device to some extent in the hardware. In this case, hardware capable of realizing the intended function of the device with a single microcomputer configuration is conceivable.

The software in this case can be incorporated as it is because a plurality of microcomputers for each function have different control methods and correspond to the configuration of a single microcomputer. Instead, it is necessary to integrate and operate it.

The same applies to the case where two types of control programs of the event driven type and the polling type are to be unified into a program having one type of control method, and it is necessary to recreate the control program corresponding to a specific control method. , It is not possible to easily port the programs that have been used for a long time, and it takes a lot of development man-hours.

Therefore, according to the present invention, when the event-driven and polling-type control programs that have been used in the communication terminal device are unified, the program control can improve the portability to reduce the development man-hours. The purpose is to provide a method.

[0011]

In order to achieve the above object, the present invention provides a program control method in a communication terminal device according to claim 1, wherein an event processing control for activating a corresponding process when an external factor occurs. Means and polling processing control means for repeatedly monitoring the status of the line by sequential processing and detecting an activation factor, and the polling processing means successively performs processing when there is processing idle time during which the event processing control means does not operate. The event processing control means performs the processing according to the status of the line by repeatedly operating in the processing,
When an external factor is generated, the polling process control means in operation is switched to operate both means under the control of one operating system.

According to another aspect of the program control method in the communication terminal device of the present invention, when the event processing control means operates for a long period of time and the idle time of the processing cannot be secured, the polling processing control means is preferentially operated for every fixed time period. It is characterized by that.

According to a third aspect of the present invention, there is provided a program control method for a communication terminal device, wherein the event processing control means and the polling processing control means perform communication between both means through a shared memory in which both means can refer to and write a part of the memory space. It is characterized by that.

[0014]

According to the first aspect of the present invention, when the hardware control composed of a single microcomputer system is performed by using the event processing control means and the polling processing control means, the polling processing is performed. The control means repeatedly operates in a sequential process during the idle time of the processing in which the event processing control means does not operate, and when an external factor occurs, switches from the polling process control means that is operating before the factor occurs to the event process control means. To operate
By performing processing corresponding to the external factors,
Operation management is possible with one operating system.

Therefore, conventionally, each control of the event processing control means and the polling processing control means, which respectively operate under separate microcomputers and different operating systems, is converted into a program corresponding to a specific control method. No need to change.

According to the second aspect of the invention, the event processing control means continues to operate for a long time, and the polling processing control means operates at regular intervals while the idle time of the processing cannot be secured.

Therefore, the operation of the polling processing control means for repeatedly monitoring the activation factor in the sequential processing is guaranteed even while the event processing control means is operating.

According to the third aspect of the present invention, two types of processing control means for events and polling perform inter-program communication through a shared memory that can refer to and write a part of the memory space.

Therefore, not only the event and polling processing control means can be divided into respective functions to operate, but also both means can operate in cooperation.

[0020]

1 is a block diagram showing a communication terminal device according to an embodiment of the present invention.

In FIG. 1, a communication terminal device 2 relays data between an external terminal device 1 connected through a transmission line 4 and a facsimile 3 connected through a communication line 5. The communication terminal device 2 has a central processing unit 7, and an external terminal interface unit 6 and a communication line interface unit 8 are connected to the central processing unit 7.

The central processing unit 7 is mainly composed of a microprocessor, and the storage unit 9 is a read only memory (ROM) and a random access memory (RAM).
And stores a program that defines the operation procedure of the central processing unit 7 and data to be processed by the central processing unit 7.

The external terminal interface unit 6 supplies the central processing unit 7 with data output to the transmission line 4 according to an instruction from the central processing unit 7 and information sent from the external terminal device 1.

The communication line interface unit 8 supplies data to the communication line 5 according to an instruction from the central processing unit 7 and the information sent from the facsimile 3 to the central processing unit 7.

FIG. 2 is a program block diagram for controlling the operation of the apparatus by the central processing unit 7.

The operating system 21 having the preemptive priority scheduling operates under control of the event-driven control program 22 and the polling-type control program 23, and communicates between the control programs through the shared memory 24. .

The event-driven control program 22 as the event processing control means is an external terminal composed of a terminal line physical control task 25 and a terminal line logic control task 26 for transmitting / receiving data to / from the external terminal device 1 through the transmission path 4. A communication function unit with a device, a central processing judgment function unit for data relay consisting of a device operation management task 27, a polling control program as a polling process control unit which is a communication function unit of a communication line through a shared memory 24, and between programs It is composed of three functional units of a communication line control functional unit including a FAX logic control task 28 for performing communication and controlling operations.

The event-driven control program 22 is activated by operating the terminal line physical control task 25 due to the occurrence of a factor from the external terminal interface unit 6, or the FAX logical control task 28 periodically cycles the program. Upon startup, the polling control program 2 is stored in the shared memory 24.
The control task is activated when it is detected from 3 that there is specific command / response data, and thereafter each control task is activated sequentially as necessary.

The polling control program 23 includes a program operation switching task 29 and a FAX line control task 3.
0, procedure control task 31, image control task 32, NCU
It is composed of the control task 33 and has a communication function with a communication line.

The polling type control program 23 constantly acquires a plurality of events asynchronously generated in the communication line interface section 8 in the operating system 21 and holds each state, and each control task 29.
~ 33 each time the operating
Each event state held in the system 21 is referred to, and if there is an event, the communication line corresponding to them is controlled.

The FAX line control task 18 performs processing corresponding to the event held in the operating system 21 and that the event driven control program 22 has specific command / response data in the shared memory 24. Is detected and the corresponding operation is performed to perform inter-program communication.

FIG. 3 shows a list of task priorities of the respective control programs shown in FIG.

The operating system 21 which manages the operation of each control program schedules each task on the basis of the preemptive priority, and allocates the CPU resource to the task having the highest priority among the tasks in the ready state.

Of the polling type control program 23, F
The AX line control task 30, the procedure control task 31, the image control task 32, and the NCU control task 33 have the highest task priority and can operate with priority.

The event-driven control program 22 is lower in task priority than the control tasks 30 to 33 of the polling-type control program 23 to be preferentially operated. Can be run if it does not work.

Among the polling control programs 23, the program operation switching task 29 has the lowest task priority as compared with other control tasks, and the other control tasks 30 to 33 of the polling control program to be operated preferentially,
It can be executed when the event-driven control program 22 does not operate.

FIG. 4 is a flow chart showing a processing procedure when each control program of FIG. 2 is subjected to the scheduling operation based on the task priority of FIG.

A description will be given of a program operation example in which two kinds of control methods, that is, the event-driven control program 22 and the polling-type control program 23, under the control based on the task priority of one operating system 21 are different.

In step 101, after the program starting process is performed, the operation of each control task is executed based on the task priority shown in FIG.

In the next step 102, before the program operation switching task 29 having the lowest task priority is executed and the polling-type control program 23 sequentially operates, the event-driven control program 22 having the medium task priority is executed. The control task with the activation factor is executed first.

That is, the event-driven control program 22
If there is a task with an activation factor in the list, a task with a high task priority is selected from the control tasks with an activation factor (step 103), and the control task of any of steps 104 to 107 is executed. After step 102
Return to In the event-driven control program 22, when the control task having the activation factor operates all by repeating steps 102 to 107 and it is determined in step 102 that there is no activation factor, that is, when the CPU idle time can be secured. Then, the operation is switched to the operation of the polling control program 23 (steps 108 to 112).

The polling control program 23 is executed in the order shown in steps 108 to 112 by the sequential processing. When the control task of steps 109 to 112 having the highest task priority is executed, each of the event driven control programs is executed. Control task cannot be executed.

After the processing of step 112 is executed, when the process returns to step 102, the polling type control program 23
If the activation factor of the event-driven control program 22 has occurred during execution, the operation is switched to the operation of the event-driven control program 22 shown in steps 102 to 107,
If no activation factor has occurred, steps 108 to 11
The polling control program 23 shown in 2 continues to operate.

FIG. 5 is a flowchart showing an example of processing in which each control task is scheduled under the control of the operating system 21.

A case will be described in which the event-driven control program 22 operates for a long time, and when the CPU idle time cannot be secured, the polling-type control program 23 operates preferentially at regular intervals.

When the operation is switched from the event driven control program 22 to the polling control program 23 and the program operation switching task 29 is executed (step 201), the FAX line control task 30 is executed.
A timer for restarting after 100 mSec has elapsed is set, and thereafter, the polling control program 23 in steps 203 to 205 is sequentially operated.

After the processing of step 205 is executed, if the event-driven control program 22 is being executed for a long time based on the occurrence of the activation factor (step 206),
When the timer set in step 202 times out, the processing of the event-driven control program 22 having a medium task priority is interrupted, and the FAX line control task 30 having a high task priority is switched to and set. The timer timeout is recognized (step 207). In step 207, the timer setting of 100 mSec is performed again, and thereafter, the polling control program 23 having the highest task priority (steps 208 to 210) is operated, so that the priority control operation of the polling control program 23 in every 100 mSec cycle is performed. I guarantee.

After step 210 is executed, each control task of the event-driven control program 22 suspended in step 206 is executed, and the polling-type control program 23 is switched to (step 212). If the timer set in step 207 has not timed out before step 213 operates after step 212 is executed, the set 100 mSec timer is released, and the timer is reset to set the next 100 mSec cycle. The priority operation of the polling control program 23 is guaranteed (step 213).

FIG. 6 is a block diagram of an example of inter-program communication using a shared memory.

A case will be described in which the event-driven control program 22 and the polling-type control program 23 use part of the memory space as a shared memory 24 which both programs can refer to and write to for inter-program communication.

The shared memory 24 includes an event-driven control program command / response area 41 for the event-driven control program 22 to issue specific command / response data to the polling-type control program 23, and a polling-type control program. 23 is composed of two faces of a polling type control program command / response area 42 for issuing specific command / response data to the event driven type control program 22.

The event driven control program 22 sends a specific command to the polling control program 23.
When issuing response data, the FAX logic control task 28 confirms that the previously issued command / response data is delivered to the event-driven control program command / response area 41, and then the command / response data to be issued. Write. After that, the FAX line control task 30 activated by the sequential processing is executed by the event-driven control program command / response area 4
When the existence of command / response data is confirmed by referring to 1, the event-driven program command / response area 41 is cleared to 00H in order to acquire the data and let the control program on the other side recognize that the data has been acquired. Inter-program communication is performed according to the procedure described above.

The polling type control program 23 sends a specific command to the event driven type control program 22.
When issuing the response data, the fax line control task 30 confirms that the previously issued command / response data has been delivered to the polling type control program command / response area 42, and then determines the command / response data to be issued. Write. After that, the FAX logic control task 28, which operates with a periodic start for a certain time,
When the presence of command / response data is confirmed by referring to the polling type control program command / response area 42, the polling type program command / response is performed in order to acquire those data and make the counterpart control program recognize that the data has been acquired. Inter-program communication is performed in the procedure of clearing all 00H in the area 42.

[0054]

As described above, according to the present invention, the hardware control of the communication terminal device composed of a single microcomputer system can be controlled by the event processing under the control of one operating system. When using the polling processing control means and the polling processing control means, the polling processing control means is repeatedly operated in a sequential process during the idle time of the processing in which the event processing control means does not operate, and when the external factor occurs, it operates until the factor occurs. Since the polling processing control means in the inside is switched to operate the event processing control means to perform the processing corresponding to the external factor, conventionally, each operates under a separate microcomputer and another operating system. The event processing control means and the polling processing control means that were There is no need to change the program that corresponds to the.

In particular, the polling processing control means guarantees that it operates at regular intervals, and by performing inter-program communication between the event processing control means and the polling processing control means, both means can operate in cooperation.

Therefore, when unifying the event-driven and polling-type control programs, which have been used in the communication terminal device before, into one, the program control method has high portability and can reduce development man-hours.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a communication terminal device that implements the method of the present invention.

FIG. 2 is a program configuration diagram for controlling the operation of a communication terminal device that implements the method of the present invention.

FIG. 3 is an explanatory diagram showing a list of task priorities of respective control programs for controlling the operation of the communication terminal device embodying the present invention.

FIG. 4 is a flowchart showing a program switching processing procedure of each control program for controlling the operation of the communication terminal device embodying the present invention.

FIG. 5 is a flowchart showing a processing procedure of polling processing control means that operates at regular time intervals by the operation of each control program that controls the operation of the communication terminal device embodying the present invention.

FIG. 6 is a configuration diagram of a shared memory used for inter-program communication of each control program for controlling the operation of the communication terminal device embodying the present invention.

[Explanation of symbols]

1 External Terminal Device 2 Communication Terminal Device 3 Facsimile 4 Transmission Line 5 Communication Line 6 External Terminal Interface Unit 7 Central Processing Unit 8 Communication Line Interface Unit 9 Storage Unit 21 Operating System 22 Event Driven Control Program (Event Processing Control Means) 23 Polling control program (polling processing control means) 24 Shared memory 25 Terminal line physical control task 26 Terminal line logical control task 27 Device operation management task 28 FAX logical control task 29 Program operation switching task 30 FAX line control task 31 Procedure control task 32 Image control task 33 NCU control task 41 Event-driven control program command / response area 42 Polling control program command / response area

Claims (3)

[Claims] 1. In a program control method in a communication terminal device composed of a single microcomputer system, an event processing control means for activating a corresponding processing when an external factor occurs, and a status of a line. And a polling process control unit that detects an activation factor by repeatedly monitoring the event process, and the polling process control unit repeats the operation by the sequential process when there is a processing idle time when the event process control unit does not operate. The processing according to the status of the line is performed, and when an external factor occurs, the polling processing control means that is operating is switched to the event processing control means to operate, and the event processing is performed under the control of one operating system. The control means and the polling process control means are operated. A program control method in a communication terminal device. 2. The program control method for a communication terminal device according to claim 1, wherein the polling processing control means is prioritized at regular time intervals when the event processing control means operates for a long time and processing idle time cannot be secured. And a program control method in a communication terminal device. 3. The program control method for a communication terminal device according to claim 1, wherein the event processing control means and the polling processing control means are provided between a pair of means through a shared memory in which a part of the memory space can be referenced and written by both means. A program control method in a communication terminal device, characterized in that communication is performed.