JPH0638246B2 - Logging method for program debugging - Google Patents

Description

[Detailed Description of the Invention] [Outline] In a computer having a function of performing various communication services in cooperation with a switchboard, logging information for confirming a communication interface of an application program is collected during debugging and stored in a file. With regard to the system, the purpose is to provide a simple means for logging interface information, and in a computer that has a communication control unit that performs communication control in cooperation with an exchange and has a data file function, call it from an application program. Then, while requesting the communication control unit to execute the necessary communication function,
A communication interface unit is provided that has a function of editing interface information associated with a call from the application program as logging information and requesting the communication control unit to store the logging information in a file. Is called to execute the communication function execution request to the communication control unit, and to control the logging information edit processing and file storage request related to the interface information associated with the call.

[Industrial application field]

The present invention relates to a method of collecting logging information for confirming a communication interface of an application program and storing it in a file in a computer having a function of performing various communication services in cooperation with an exchange.

[Conventional technology]

Recently, a system has been developed which realizes a multi-functional telephone such as a telephone transfer service and transmission / reception of computer data by linking a switchboard (PBX) and a computer.

FIG. 3 shows an example of the configuration of a computer of such a conventional system.

In the figure, 1 is an exchange.

2 is a communication line.

3 is a computer.

Reference numeral 4 is an application program having a communication request.

A communication interface unit 5 is called by the application program 4 and executes an actual communication request process, and is composed of a plurality of subroutines for each type of communication function.

A program-controlled communication control unit 6 executes communication control instructed in accordance with a request from the communication interface unit 5.

Reference numeral 7 is a line control unit.

For example, the application program 4 is written using the COBOL language, and the CALL interface calls an arbitrary subroutine of the communication interface unit 5 to perform communication processing.

An example of each subroutine in the communication interface unit 5 is shown below.

Subroutine name Function XONOOPN Declaration of point (area) use of communication interface, setting of point name, password name, etc.

XONOCLS Declares the end of the points of the communication interface used.

Establishes a path between the XONONCON communication device and the communication control unit.

Release the path between the XONODCN communication device and the communication control unit.

Abnormal termination of the path between the XONODBT communication device and the communication control unit.

XONOREQ Activates the function of the communication control unit for communication equipment. This function includes the call control function, the input / output information update function of the end node (partner terminal), and the terminal input / output control function.

XONORCV Receives notifications and instructions from communication devices.

XONOCAN Canceling the receive request being executed.

The application program 4 sequentially calls an appropriate one of the above-mentioned subroutines to obtain a point name,
Necessary control data such as a telephone number is passed as a parameter together with the password name, and the communication control unit 6 is controlled.

FIG. 4 shows the flow of basic operations when debugging the application program 4. To explain using a specific example, first, the application program 4 calls a subroutine "XONOOPN" to declare the use of points of the communication interface unit 5, and then calls a subroutine "XONOCON" to communicate with a communication device (line control unit 7). Set a path with the communication control unit 6, and then use the subroutine "XONOREQ" and subroutine "XONORCV" to establish the path with the end node (partner terminal) and perform the necessary data transfer control. After completion, the subroutine "XONODCN" is called to release the path between the communication device and the communication control unit 6, and finally the subroutine "XONOCLS" declares the end of use of the points of the communication interface unit 5.
When these processes are finished, the display of the execution result or the form printing is performed by the DISPLAY command and the process is finished.

[Problems to be Solved by the Invention]

When debugging an application program, it is necessary to check the interface with each sub-routine in the communication interface section, for example, to confirm whether each control data of the parameter was correctly passed by calling the sub-routine. Is a method in which the creator of the application program inserts a DISPLAY command at a position where a subroutine is called in the application program during debugging, and displays or prints parameter information and processing result information on a display for confirmation. Was there.

However, to see the interface information on the display for all calls from the application program to the subroutines in the communication interface section,
D to the required location of the application program
It was necessary to insert the ISPLAY instruction and delete it after the debug was completed. In particular, it was necessary to prepare a file storage function to store all the information of each interface as logging information in a file such as a disk, which was actually difficult. . Further, in some communication protocols, when data is transmitted via a line, control information such as a flag is added, blank data is deleted to reduce unnecessary line occupation time, or a protocol such as a character code that is not allowed to be used. Data processing such as forcibly and automatically replacing specified data such as space characters with meaningless data for the user is performed. In such a case, the incorrect data that caused the communication error occurs. When trying to search for in the transmitted data, there was significant difficulty because the data had changed.

It is an object of the present invention to provide a simple means for logging interface information when a subroutine of a communication interface section is called when debugging an application program.

[Means for Solving the Problems]

The present invention focuses on the fact that many communication control units are provided with a file storage function, and by providing the communication interface unit with a function of editing logging information and requesting a file storage to the communication control unit, The logging information can be stored in a file for all calls from the program to the subroutine in the communication interface section.

FIG. 1 is a principle block diagram of the present invention.

In the figure, 1 is an exchange.

2 is a communication line.

3 is a computer.

Reference numeral 4 is an application program including communication processing.

A communication interface unit 5 is called by the application program 4 and executes communication processing.

Reference numeral 5a is a subroutine that realizes the function of the communication interface unit 5 (the application program 4 serves as a main routine), issues a request to start the communication control function for executing the procedure necessary for communication processing, and logs information. Edit and make a file storage request.

5b is parameter information, which is logged when communication processing is executed.

A communication control unit 6 operates in response to a request from the communication interface unit 5 and has a communication control function and a data file storage function.

A line control unit 7 establishes and releases a line with a partner terminal via the exchange 1 based on an instruction from the communication control unit 6.

A disk file device 8 is used by the communication control unit 6 to store logging information.

Reference numeral 9 is a logging information display output routine, and when a logging display command is input, the disk file device 8
The logging information stored in is read and displayed or printed out.

10 is a display capable of displaying logging information.

Reference numeral 11 is a printer capable of printing out the logging information.

[Action]

In the configuration of the present invention shown in FIG. 1, when the application program 4 calls the subroutine 5a of the communication interface unit 5 (CALL), the subroutine 5a uses the parameter information 5b such as the designated telephone number and the communication control unit. 6 function is activated and necessary communication processing is performed. After that, the subroutine 5a is called, the parameter information 5b is edited as logging information, and the communication control unit 6 is requested to store it in the disk file device 8.

After the processing of the application program 4 is completed, if the logging display command is input and the logging information display output routine 9 is started, the logging information stored in the disk file device 8 is always displayed on the display 10 or the printer 11 is displayed. Can be output from the form.

〔Example〕

 FIG. 2 is a flow chart showing the operation of the embodiment of the present invention.

In the figure, COBOL application is COBOL
1 represents the application program 4 of FIG. 1 written in a language, and the COBOL subroutine is the same as the first program.
It corresponds to the subroutine 5a in the figure.

The call format of the CALL interface in the COBOL application is CALL "subroutine name" USING parameter name. Here, the "subroutine name" is specified as exemplified in the section of the prior art. The parameter name is for designating a parameter block of control data defined for each subroutine. For example, in the case of the subroutine XONOREQ,
Point names, password names, communication device identification names, end node IDs, call IDs, etc. are set in the parameter block. Multiple parameter blocks can be specified. Information on the execution result is also set in the parameter block.

In FIG. 2, when a COBOL application calls a subroutine, the called COBOL subroutine makes a communication function execution request according to the contents of the specified parameter, and passes control to the communication control unit. The communication control unit executes the requested communication function, performs communication processing, and then returns control to the COBOL subroutine.
Here, the COBOL sub-routine edits the logging information, and issues the next logging request to the communication control unit.

The communication control unit executes the logging process in response to the logging request and writes the logging information to the disk file device.

When this logging process ends, the communication control unit returns control to the COBOL subroutine, and the COBOL subroutine returns to C
The control is returned to the OBOL application and the processing of the COBOL application is continued.

〔The invention's effect〕

According to the present invention, the creator of the application program can log the interface information without changing the logic such as inserting a special instruction in the program for debugging, and the blank data can be transmitted during the data transmission. Even if data processing such as deletion of
Since data before processing can be logged, it is easy to search for erroneous data when a communication error occurs, and the burden of debugging work and the debugging time can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a flow chart of the operation of the embodiment of the present invention, FIG. 3 is a block diagram of the conventional example, and FIG. 4 is a flow chart of the conventional example operation. In FIG. 1, 1: Exchange 2: Communication line 3: Computer 4: Application program 5: Communication interface part 6: Communication control part 7: Line control part 8: Disk file device 9: Logging information display output routine 10: Display 11: Printer

Claims (1)

[Claims] 1. A computer, which has a communication control unit having a data file function for performing communication control in cooperation with an exchange, is called from an application program and requests the communication control unit to execute a necessary communication function. And edit the interface information associated with the call from the application program as logging information,
A communication interface unit having a function of requesting the logging information to the communication control unit and storing it in a file is provided, and the application program calls the communication interface unit at the time of communication processing, requests the communication control unit to execute the communication function, and calls the communication function. A logging method for program debugging, characterized by controlling logging information editing processing related to interface information and file storage request.