JPH11110349A - Network system for computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for always manually inputting a command to an application by grasping the control and state of a software among the plural computers of different architecture made into network. SOLUTION: This system has a work station(WS) 1 as a computer to be operated by the other computer, personal computer(PC) 10 as a computer for operating the WS 1 and local area network (LAN) 100 for the network connection of the WS 1 and the PC 10 so as to enable communication. In such a system, a communication request is monitored at all the time. As the functional property of the WS 1, a function means is operated by the request of a monitoring means. A code file is reloaded into predetermined code corresponding to the states of the monitoring means and means for communication. A command file stores an inputted command. An output information storage file stores outputted information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to communication and control means between computers having different architectures connected by a network.

[0002]

2. Description of the Related Art Conventionally, it has been difficult to connect computers having different architectures such as a hardware configuration and a combination of basic software via a network and use software on another computer. For example, when using application software (hereinafter, referred to as an application) on a WS in an environment where a workstation (hereinafter, referred to as a WS) and a personal computer (hereinafter, referred to as a PC) are networked by a LAN,
The PC communicates with the WS using a terminal emulator, which is software for simulating the movement of the WS, and directly inputs a command to an application on the WS. Also, WS
The status display from the above application was also confirmed on the PC through the terminal emulator.

As examples of sharing a plurality of resources connected by a network, there are JP-A-2-257732 and JP-A-4-333944.

FIG. 12 is a configuration diagram for explaining the configuration of Japanese Patent Application Laid-Open No. 2-257732. Terminal control device 1202
Are a workstation management unit 1205 that communicates with the personal computer 1203, a communication management unit 1206 that communicates with the host computer 1201, and a file transmission and reception management unit 1207 that stores files to be transmitted and received.
This is a "file transfer function using a temporary storage buffer", and does not describe the control / status grasp for each task on the host side.

FIG. 13 is a configuration diagram for explaining the configuration of Japanese Patent Application Laid-Open No. 4-333944. TC1301 and WS13
51, the input / output control between the TC 1301 and the WS 13
51, each of which has an input / output buffer, receives a status notification from a partner as a frame as needed via a local network, accumulates the frame in the input / output buffer,
This is a "method using queue control as a means of utilizing shared resources", characterized in that received frames are processed in FO (first in first out).
There is no description of the control of the application on the side and the understanding of the state during operation. Further, the frame (job) control method is based on queue management using both frames, and there is no description using a shared memory.

[0006]

In the prior art, when using an application which is an asset on a WS from a PC in an environment where a WS and a PC having different architectures are networked, the behavior of the WS is simulated. A terminal emulator, which is software, is used on a PC to communicate with the WS, and the user must always manually input commands to the application. Further, information from the application needs to be monitored in real time from a terminal emulator on a PC.

The reason for this is that if the operation status output by the application is left as a file and is to be checked later, the analysis will need to be performed manually to extract necessary information, which is very troublesome.

An object of the present invention is to provide a computer communication system capable of controlling software and grasping the state between a plurality of computers having different networked architectures.

[0009]

A computer network system according to the present invention comprises a first computer operated by another computer and a second computer having a different architecture from the first computer operating the first computer. A monitoring means for constantly monitoring a communication request, a function means being a functional asset of the first computer, in a computer network system comprising: a network means for communicatively connecting the first computer and the second computer; A communication means for operating the function means in response to a request from the monitoring means, a code file rewritten to a predetermined code according to the state of the monitoring means and the communication means, a command file for storing the inputted command, and an output Output information storage file that stores the With the door the first computer.

[0010] Also, a first timing acquisition means for acquiring a timing for determining a monitoring cycle of a code file, a first code determination means for determining a communication request by referring to the code file after the timing acquisition, and a first code acquisition means. First communication shell activation means for activating the communication means when the determination means determines that there is a communication request; and communication means stored in the code file after the first communication shell activation means activates the communication shell. The monitoring means has a first code writing means for writing the activation completion code of the first.

A second timing means for acquiring a timing for determining a code file monitoring period in the communication means, and a second means for reading a code by referring to the code file after the timing acquisition and branching according to the content of the code. Code determination means and second code determination means 3
When a command which is a character is input to the first function means activated as a child process in the determination of 02, a command output means for outputting a character to be input to a command file, and a code indicating the end after the command is output to a code file. End command writing means;
Empty code writing means for writing a code meaning empty in the code file if the determination by the code determination means is abnormal termination, termination means for terminating the communication means itself after writing the code, and second code determination means If the determination is that the functional unit is being executed, the communication unit has a CDC changing unit that refers to a file stored as output information of the functional unit and writes the status code of the corresponding functional unit into the code file.

In addition, the first code determining means includes code updating / changing means for updating / changing the code file when it is determined that there is no activation request.

If the second code determination means determines that the functional means has been activated after the CDC changing means has operated, the communication means has communication start means for writing a code indicating that the activation of the functional means has been completed into a code file.

[0014] Further, it has a recording medium in which monitoring means, function means, communication means, code files, command files and storage files are recorded.

It becomes possible to control application software, which is a property of WS, and to collect output information on a PC.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1 showing an embodiment of the present invention, a computer network system according to the present invention comprises:
WS as a computer operated by another computer
1 and a PC 10 as a computer for operating the WS 1
And a local area network (hereinafter, referred to as LAN) 100 that connects the WS 1 and the PC 10 so that they can communicate with each other. WS1 is composed of a CPU and a main memory 3 for performing data processing, and a hard disk device (hereinafter referred to as H) which is a magnetic storage device for storing data and programs used in the data processing unit 1a.
D) and the LAN 1 controlled by the data processing unit 1a.
And an interface 1b for controlling data input / output to / from the outside by means of an interface 1b.

The HD 2 includes a first background shell 4 which is a program for constantly monitoring a communication request, and a WS 1
A first application 6 which is a functional asset of the first, a first communication shell 5 for operating the first application 6 in response to a request from the first background shell 4, and a first
A condition code file (hereinafter, referred to as CDC) 7 that is rewritten to a condition code predetermined according to the state of the background shell 4 and the first communication shell 5, and an input command storage file for storing input commands (Hereinafter referred to as CMD) 8
And an output information storage file (hereinafter referred to as RES) 9 for storing the output information. When the WS 1 starts up, the data processing unit 1a reads the first background shell 4 from the HD 2 and starts up.

The PC 10 comprises a CPU and a main memory, and includes a data processing section 1a for performing data processing, and a data processing section 1a.
The interface 10b is controlled by the LAN 100a and controls data input / output with the outside through the LAN 100. The data processing unit 10a has a second application for performing communication. The second application 12 has a communication driver 13 for performing communication via the CDC 7.

First background shell 4 of WS1
Is a first timing acquisition unit 201 that acquires a timing that determines a monitoring cycle of the CDC 7, a first code determination unit 202 that determines a communication request by referring to the CDC 7 after the timing acquisition, and a first code determination unit 202. If it is determined that there is a communication request, the first communication shell activation means 203 that activates the first communication shell 5 and the CDC 7 after the communication shell activation means 203 activates the first communication shell 5. Communication shell start completion code "02" 40
2 for writing the second code. The first communication shell 5 of the WS 1 includes: a second timing acquisition unit 301 that acquires a timing for determining a monitoring cycle of the CDC 7 in the first communication shell 5;
A second code determination unit 302 that reads a code with reference to the CDC 7 after the timing is acquired and branches based on the content of the code, and a first application 6 on the WS 1 that is determined as a child process by the second code determination unit 302 PC1 to input a character command to
The command output means 303 for outputting the character to be input to the CMD 8 on the 0 side, the end command writing means 304 for writing the code to the CDC 7 on the PC 10 side after the command is output, and the second code determination means 302 determining that the abnormal state is forcibly terminated. In this case, the free code writing means 390 for writing a code indicating free space in the CDC 7, the shell ending means 400 for ending the communication shell 5 itself after writing the code, and the second code determining means 30 executing application software If it is medium, the corresponding DC code of the WS application state is written to the CDC 7 by referring to the log file storing the character which is the output information of the application which is the child process.
It has a changing means 320.

Next, an embodiment of the present invention will be described with reference to FIGS. In the first background shell 4, at step S20
In 1, the first timing acquisition unit 201 acquires a timing for increasing the monitoring cycle of the CDC 7 in the shell. After acquiring the monitoring cycle timing, step S20
In step 2, the first code determination unit 202 refers to the CDC 7 on the shared memory, and when the code is "00" 400, determines that there is no communication request, branches to not satisfied, and again returns to the monitoring cycle of step S201. The first timing acquisition unit 201 is executed. If the code is "01" 401 in the first code determination means in step S202, it is determined that a communication request has been made, and the communication shell activation means 203 in step S203 causes the first communication The shell 5 is activated, and the shell activation completion code writing means 204 writes the communication shell activation completion code “02” 402 to the CDC 7 in step S204. In the first communication shell 5, step S 301 is a step in which the second timing acquisition means 301 uses the CD in the first communication shell 5.
The timing for determining the monitoring cycle of C7 is acquired.
After obtaining the monitoring cycle timing, in step 302, the second code determination unit 302 refers to the CDC 7 on the shared memory, reads the code, and branches based on the content of the code.

A description will be given of a case where the second code determination means 302 determines that the input code is a code for inputting a character command to an application on the WS started as a child process. Prepare the character you want to input on the PC 10 side,
Write to the file CMD8 on the shared memory. Thereafter, the PC 10 writes the code “10” 410 into the CDC 7, and the communication shell 5 recognizes that the CDC 7 is “10” 410 in the branch of step S 302, branches to step S 310, and executes the command output unit 3.
Reference numeral 10 outputs the contents of CMD8 to the application which is a child process. Then, in step S311, the end command writing unit 311 writes the code "11" 411 indicating the end of the command input to the CDC 7. With this operation, character input is performed to the application that is a child process.

A case where the second code determining means 302 determines that the character information from the first application 6 on the WS 1 as a child process is a code to be sent to the PC 10 will be described.

A log file for storing a character, which is output information of the first application 6 as a child process, is defined on the shared memory. In the first communication shell 5, the CDC changing means 320 of step S320 , The character group output from the first application 6 is recognized, the character group to be notified to the PC 10 is set in the file RES9, and the code “2” of the WS1 application character output is set in the CDC 7.
“0” 420 is written, the PC 10 scans the CDC 7, recognizes that it is “20” 420, and captures the contents of RES 9.

The case where the second code determination means 302 determines that the code is the forced termination code of the first application 6 which is a child process will be described. The PC 10 writes the forced termination code “99” 499 to the CDC 7, and in the first communication shell 5, in step S 302, writes the second code determination unit 3
02 or CDC7, the process branches to step 390, and in step S390, the empty code
The code "00" 400 meaning empty is written in C7, and the shell termination means 391 terminates the first communication shell 5 itself in step S391, thereby terminating the first application 6, which is a child process.

A description will be given of a case where the second code determination means 302 determines that the notification code is a notification code of the operating state of the first application 6 which is a child process. In the first communication shell 5, the second code determination means 302 in step S302 determines that the content of the CDC 7 is "10" 410,
If it is determined that the value is other than “20” 420 and “99” 499, the process branches to the CDC changing unit 320 in step S320. The CDC changing unit 320 refers to the log file storing the character which is the output information of the first application 6 which is the child process, and recognizes the character code to be notified to the PC 10 side. Of application 6 of "12" to "19" 4
12 is written into the CDC 7, and the PC recognizes the CD 12 by referring to the CDC 7.

Referring to FIG. 5 showing a second embodiment of the present invention, the communication system of the present invention includes an exchange 520 having a test program 522 and a monitor 521, and an exchange 520.
510, WS510 and WS5 that can communicate with
And a PC 500 capable of communicating with the exchange 520 via the PC 10. The PC 500 includes a storage medium 503, and the storage medium 503 includes a WS communication driver 501 for communicating with the WS 510.

The WS 510 includes a PC communication driver 511 for communicating with the PC 500, a console process 512 for an exchange which is an application and communicates with the exchange 520, and an HD 630 which is a memory space. On the HD 360 of the WS 510, the CDC 61
1, CMD 612, and RES 613. Vs PC
As shown in FIG. 6, the communication driver 511 includes a second background shell 601 which is a program for constantly monitoring a communication request, and a second background shell 601.
And a storage medium 513 for data input and backup for operating the console process 512 in response to the request.

The second background shell 601 and the second communication shell 602 and the WS communication driver 50
1 is a WS that has become a shared memory due to networking
611, CMD612, RES on HD630
Communication is performed via 613.

By starting a console process 512 as a child process of the second communication shell 602, a command is input to the exchange 520 side and the exchange 52
The output from 0 is output to a log file 614 on the HD 630, the log file 614 is analyzed by the communication shell 602, and the state is notified via the CDC 611.

Next, the operation of the second embodiment of the present invention will be described in detail with reference to FIGS. 7, 8, 9, 10, 16, 17 and 18.

The second background shell 601 of the WS 510 includes a third timing acquisition unit 701 for acquiring a timing for determining a monitoring cycle of the CDC 611, and a third code for determining a communication request by referring to the CDC 611 after acquiring the timing. Determining means 702, second communication shell starting means 703 for starting the second communication shell 602 when the third code determining means 702 determines that there is a communication request, and second communication shell When the activation means 703 activates the second communication shell 602 and writes the communication shell completion code to the CDC 611, the second code writing means 702 and the third code determination means 702 determine that there is no activation request. And a code updating / changing means 705 for updating / changing. The second communication shell 602 is a CDC in the second communication shell 602.
The fourth timing for obtaining the timing for determining the monitoring cycle of 611 is obtained by the obtaining means 801 and the fourth code for reading the code by referring to the CDC 611 on the shared memory after obtaining the monitoring cycle timing and branching according to the content of the code. A communication start unit 810 that outputs a batch command to a console process, which is a child process, and writes an exchange monitor activation completion code to the CD 611, when the determination unit 802 determines that the exchange code monitor is activated, If the fourth code determination unit 802 determines that a general command has been input, a general command input unit 820 that outputs the contents of the CMD 612 and a general command input unit 8
A command input unit 821 for writing a code indicating that the command input has been completed after the end of the process 20;
If the determination in step 2 is forcible termination, a free code writing unit 830 that writes a code indicating free in the CDC 611
If the determination by the communication shell ending means 831 that terminates the second communication shell 602 itself and the determination by the fourth code determination means 802 are execution of a special command, the contents of the CMD 612 are transmitted to the console process as a child process. Special command output means 840 for outputting, and special command output means 8
A special command executing code writing unit 841 for writing a code that is executing a special command after the completion of 40, and a special command executing unit 850 for executing a special when the fourth code determining unit 802 determines that the special command is being executed.
A conversation response input unit 860 for performing a conversation response input process when the fourth code determination unit 802 determines that the input is a conference response input; and a conversation response input code writing a conversation response input code after the conversation response input unit 860 ends. Means 8
61.

The special command executing means 850 determines whether there is a conversation response request or not.
2, character presence / absence determining means 920 for determining the presence / absence of a character indicating the end of the test when the conversation response request determination means 902 determines that the response is not a conversation response, and a code indicating the result GOOD if the result is GOOD upon completion of the test And a NG code for writing a code that is a result NG when the test is completed and the result is NG.
Code writing means 922, error occurrence code writing means 923 for writing a code indicating an abnormal occurrence when the test ends abnormally, and timing acquisition means transition means 990 for shifting to the fourth timing acquisition means 801 after the end of the writing. A message character collection unit 910 for extracting output information from the test program from the log file when the conversation response request determination unit 902 determines that it is in a conversation response state, and further collecting a message character group to the user; Character collection means 91
Message character output means 911 for writing a code which is a conversation response request after completion of 0. The processing of the second background shell 601 is always performed from the start of the WS 510. In step S701, a timing for determining the monitoring cycle of the CDC 611 is acquired by the third timing acquisition 701. After acquiring the monitoring cycle timing, in step S702, the third code determination unit 702 refers to the CDC 611 on the shared memory, and when the code is other than “02” 1002, determines that there is no activation request, and determines that the code has not been established. The process branches to update and update the CDC 611 confirmed by the code update / change unit 705 in step S705.
Then, the third timing acquisition unit of step S701 acquires the timing that is the monitoring cycle again. In step S702, in the case of “02” 1002, it is determined that an activation request has been made, and the second communication shell activation means 703 in step S703 activates the second communication shell 602 which is a child process. After startup, the startup completion code writing unit 704 writes the communication shell startup completion code “03” 1003 to the CD 611 in step S704. Thus, the second communication shell 602 is activated, and communication is enabled.

Next, the operation of the second communication shell 602 will be described. The second communication shell 602 performs step S80.
1 and the fourth timing acquisition means 801 is the communication shell 6
02, a timing for determining the monitoring cycle of the CDC 611 is obtained, and after obtaining the monitoring cycle timing, the fourth code determination unit 802 reads the code by referring to the CDC 611 on the shared memory in step S802, and reads the code based on the content of the code. Perform a branch.

After the second communication shell 602 has been activated, the PC 500 activates the monitor 521 on the exchange 520 so that the PC 500 activates the exchange monitor activation code "04" 1.
004 is written to CMD612. In the second communication shell 602, in step S 802, in the branch of the fourth code determination unit 802, the CDC 611 sets “04” 100
In step S810, the process branches to the communication start means 810, outputs a batch command for starting the exchange to the console process 512, which is a child process, and outputs the exchange monitor start completion code "05" 1005 to D.
Write to CD611. With this operation, the monitor 521 on the exchange 520 is activated, and thereafter, a command can be input to the exchange 520.

A description will be given of a case where a character command is input to an application on the WS 510 started as a child process. A character to be input is prepared on the PC 500 side, and is written to the file CMD 612 on the shared memory.
1010 is written to the CDC 611, and the communication shell 60 is written.
In step S802, the fourth code determination means 80 in step S802
2 recognizes that the CDC 611 is "10" 1010, branches to the general command input means 820 in step S820, and sends the CMD6 to the child process application.
12 is output. After that, the command input ending means 811 in step S821 writes the code "50" indicating the end of the command input. With this operation, a character is input to the console process 512, which is a child process, and a command is input to the monitor 521 on the exchange 520.

Next, forced termination of the console process 512, which is a child process, from the PC 500 will be described. The forced termination code "0" is sent from the PC 500 to the CD 611.
98 "1098 and the second communication shell 602
The fourth code determination means 802 recognizes the CDC 611, and the empty code writing means 830 in step S830
And the code “01” meaning empty in the CDC 611
1001 is written, and the communication shell termination unit 831 terminates the communication shell 602 itself in step S831, thereby terminating the console process 512 as a child process.

A case where a special command for the console process 512 on the child process WS 510 is executed will be described. The activation of the test program 522 on the exchange 520 is positioned as a special command, so that the test can be performed and the test results can be collected. When the test program 522 is started on the exchange 520, a character of a start command is prepared on the PC 500 side, and written in the file CMD612 on the shared memory.
Side writes the code “30” 1030 in the CDC 611, and the second communication shell 602 executes step S 802.
In the branch of the fourth code determination means 802, the CDC
Recognizing that “611” is “30” 1030, the process branches to the special command output unit 840 in step S840, and the CMD61 is sent to the console process 512 as a child process.
2 is output. Thereafter, the special command executing code writing means 841 of step S841 writes the code “60” 1060 that is executing the special command. With this operation, a character is input to the console process 512, which is a child process, and the test program 522 is started on the monitor 521 on the exchange 520. Thereafter, in step S802, in the branch of the fourth code determination unit 802, the CDC 611 sets “60” 106
Recognizing that it is 0, the process branches to the special command executing means 850 in step S850.

A case where a special command for the console process 512 on the WS 510 as a child process is executed will be described. The case of sending to the PC 500 will be described. In step S902, in the branch of the conversation response request presence / absence determining unit 902, the log file is referred to to determine whether there is a conversation response request. The presence / absence determination is made, and if the result is GOOD at the end of the test, the GOOD code writing means 9 in step S921
Branches to 21 and results in GOOD code "61" 10
61 is transferred to the timing acquisition means transition means 990 of the writing step S990. If the result is NG at the end of the test, the NG code writing means 922 in step S922
Then, the code “62” 1062, which is the result NG, is written, and the processing moves to the timing acquisition means transition means 990 in step S990. If the test ends abnormally, the process branches to the error occurrence code writing means 923 in step S623, writes the code "64" 1064 indicating the occurrence of an error, and shifts to the timing acquisition means shifting means 990 in step S990. If the test has not been completed, the process proceeds from the character presence / absence determination unit 920 in step S920 to the timing acquisition unit transition unit 990 in step S990.

Next, a description will be given of a conversation response process with the test program 522 on the exchange 520. Step S
In the branch of the character presence / absence determination unit 902, the log file is referenced to determine the presence / absence of a conversation response request. If the conversation response state is established, the message character collection unit 910 logs output information from the test program in step S910. It extracts from the file, collects message character groups for the user, and outputs the information to the RES 613. Thereafter, in step S911, a code “65” 1065, which is a conversation response request, is written. Scan the CDC 611 on the PC 500 side,
Recognizing that it is "65" 1065, the content of RES 613 is taken in and displayed on the GUI.

The response from the user is sent from the PC 500,
Write as a character to CMD612, then PC
Conversation response input “30” 103 from 500 to CDC 611
0 is written, and in the branch of the fourth code determination means in step S802, the CDC 611 is referred to, and step S802 is executed.
The process branches to a conversation response input unit 860 and outputs the contents to the console process 512 which is a child process. Thereafter, the code “60” 1060 under execution of the special command is written in the conversation response input code writing means 861 in step S861.

Further, as a modification of the third embodiment of the present invention, a configuration as shown in FIG. 11 will be described. In the figure, the CDC on the WS HD
The CMD / RES is arranged by the number of target exchanges, and a directory is divided instead of assigning a number to each file name, so that a plurality of exchanges can be communicated.

Next, the operation of the embodiment of the present invention will be described in detail with reference to FIGS.

The second background shell 601 includes:
A third timing acquisition unit 701 that acquires timing for determining a monitoring cycle of the CDC 611, and a third timing determination unit 701 that determines a code by referring to the CDC 611 on the shared memory after acquiring the monitoring cycle timing. Code updating / changing means 705 for changing the directory referred to for updating / changing the CDC to be confirmed when the third code determining means 702 determines that there is no activation request; When it is determined by the code determination unit 702 that there is an activation request, the second communication shell activation unit 703 that activates the second communication shell 602 as a child process and activates the child process.
And a second code writing unit 704 for writing a communication shell start completion code in the CDC 611.

Next, the operation of the embodiment of the present invention will be described in detail with reference to FIGS. The processing of the second background shell 601 is always performed from the start of the WS 510. Third in step S701
After the timing acquisition unit 701 acquires the monitoring cycle timing, which is the timing for determining the monitoring cycle of the CDC 611, the third code determination unit 702 is performed in step S702.
Refers to the CDC 611 on the shared memory, and the code is “0”.
2 ”When other than 1002, it is determined that there is no activation request,
In order to update / change the CDC to be confirmed and to confirm, the directory referred to by the code updating / changing unit 705 in step S705 is changed, and step S701 is performed again.
The third timing acquisition means 701, which is the monitoring cycle of the above, is executed. Third code determination means 70 in step S702
In the case of “02” 1002 in 2, it is determined that an activation request has been made, and the second communication shell 602, which is a child process, is activated. In step S 703, the second communication shell activation unit S 703 activates the child After the process starts, in step S704, the second code writing unit 704
611 is a communication shell start completion code “03” 1003
Write. Thus, the second communication shell 602 is activated, and communication is enabled. In the above operation, each file on the HD has the same file name, and is separated from a plurality of exchanges by a directory.

[0046]

As described above, the present invention provides a first computer operated by another computer, a second computer having a different architecture from the first computer operating the first computer, In a computer network system having a network means for communicably connecting the first computer and the second computer, a monitoring means for constantly monitoring a communication request; a function means being a functional asset of the first computer; Communication means for operating the function means in response to the request of the monitoring means, a code file rewritten to a code predetermined by the state of the monitoring means and the communication means, a command file for storing the inputted command, and an output And an output information storage file for storing the obtained information. By having the computer, there is a need not effect to perform always command input to the application manually.

[Brief description of the drawings]

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

FIG. 2 is a flowchart of a first background shell shown in FIG. 1;

FIG. 3 is a flowchart of a first communication shell shown in FIG. 1;

FIG. 4 is an explanatory diagram of a definition of a CDC code stored in the CDC shown in FIG.

FIG. 5 is a block diagram of a second embodiment of the present invention.

FIG. 6 is a configuration diagram of a driver for PC communication shown in FIG. 5;

FIG. 7 is a flowchart of the background shell shown in FIG. 6;

FIG. 8 is a flowchart of a second communication shell shown in FIG. 6;

FIG. 9 is a flowchart of a special command executing means shown in FIG. 8;

FIG. 10 is an explanatory diagram of a definition of a CDC code stored in the CDC shown in FIG.

FIG. 11 is a configuration diagram on a shared memory according to a third embodiment of the present invention.

FIG. 12 is a block diagram of a conventional file transmission / reception remote control device.

FIG. 13 is a block diagram of an input / output control method of a conventional cluster system.

FIG. 14 is a functional block diagram of a first background shell shown in FIG. 1;

FIG. 15 is a functional block diagram of a first communication shell shown in FIG. 1;

FIG. 16 is a functional block diagram of a second background shell shown in FIG. 6;

FIG. 17 is a functional block diagram of a second communication shell shown in FIG. 6;

FIG. 18 is a functional block diagram of a special command executing means shown in FIG. 17;

[Explanation of symbols]

 1,510 WS 2,630 HD 4,601 Background shell 5,602 Communication shell 6,12 Application 7,611 CDC 8,612 CMD 9,613 RES 10,500 PC 13 Communication driver 501 vs. WS communication driver 503 513 Recording medium 511 Communication driver for PC 512 Console process 520 Exchanger 521 Monitor 522 Test program 614 Log file

Claims (6)

[Claims] 1. A first computer operated by another computer; a second computer having an architecture different from that of the first computer operating the first computer; the first computer and the second computer
A network means for communicatively connecting said computers, a monitoring means for constantly monitoring a communication request, a function means being a functional asset of said first computer, and a request from said monitoring means. Communication means for operating the function means, a code file rewritten to a code predetermined by the state of the monitoring means and the communication means, a command file for storing input commands, and output information. A network system for a computer, wherein the first computer has an output information storage file to be stored. 2. A first timing obtaining means for obtaining a timing for determining a monitoring cycle of the code file; a first code determining means for determining a communication request by referring to the code file after obtaining the timing; When the first code determination unit determines that there is a communication request, the first communication shell activation unit that activates the communication unit, and the first communication shell activation unit activates the communication shell. 2. The computer network system according to claim 1, wherein said monitoring means has first code writing means for writing a start completion code of said communication means in said code file later. 3. A second timing means for acquiring a timing for determining a monitoring cycle of the code file in the communication means, and a code is read with reference to the code file after the timing acquisition to branch according to the content of the code. When a command which is a character is input to the first function means activated as a child process, the character to be input is stored in the command file. A command output unit for outputting, an end command writing unit for writing a code indicating the end after the command is output to the code file, and an empty space in the code file when the determination by the second code determination unit is abnormal end. Empty code writing means for writing a meaning code; The termination means for terminating the communication means itself after writing the code, and referring to the stored file which is the output information of the function means when the judgment by the second code judgment means is that the function means is being executed. 3. The computer network system according to claim 1, wherein said communication means has a CDC changing means for writing a status code of said function means into said code file. 4. The computer network system according to claim 2, further comprising a code update changing unit that updates and changes said code file when said first code determining unit determines that there is no activation request. 5. The method according to claim 1, wherein the second step is performed after the CDC changing means operates.
4. The computer according to claim 3, wherein said communication means has a communication start means for writing a code of completion of activation of said function means into a code file when the judgment of said code judgment means is activation of said function means. Network system. 6. The computer network system according to claim 1, further comprising a recording medium that records said monitoring means, said function means, said communication means, said code file, said command file and a storage file.