JPH08123754A - Data conversion system for remote procedure call processing - Google Patents

Abstract

PURPOSE: To improve the efficiency of remote procedure call processing to be executed between plural host computers having the same data expression system. CONSTITUTION: A requested host 201 is registered in an extended data conversion corresponding host table 104 and converted into a network standard form by local data encoding processing 111 in the case of the same data expression format or by encoding processing 110 in the case of a different data expression form to call remote procedure. On the other hand, a requesting host 101 is registered in an extended data conversion corresponding host table 203 and decoded from the network standard form by local data decoding processing 209 in the case of the same data expression format or decoding processing 208 in the case of a different data expression format to execute the remote procedure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data conversion system in remote procedure call processing between host computers having different data representation formats.

[0002]

2. Description of the Related Art Conventionally, in remote procedure call processing between host computers, the arguments transmitted are
The requesting host converts the local data format into a network standard data format that all host computers can interpret before sending. Therefore, the request destination host that receives the argument converts the argument from the network standard data format to the local data format.

As an example of performing such data conversion processing, there is SUN RPC which is remote procedure calling processing of SUN MICROSYSTEMS. This S
The specification of UNRPC is given in RFC1057.

In this SUN RPC, 1992
The first edition was issued on July 30, 2013 by Toppan Co., Ltd.,
W. Publication by Richard Stevens "UNIX
XDR (E, which is specified in RFC 1014, as disclosed in "Network Programming".
XTERNAL DATA PRESENTATIO
N) is used to convert the local data representation format of each host computer into a network standard data representation format for use.

[0005]

In this conventional technique, even between host computers having the same data representation format, the argument to be transmitted in the remote procedure call processing, which is essentially unnecessary, is temporarily converted into the network standard data format. However, there is a problem that it is necessary to perform a process of converting the network standard data format to the local data format again after the transmission.

An object of the present invention is to improve the efficiency of remote procedure call processing between host computers.

Another object of the present invention is to reduce the overhead required for the data conversion processing by not performing the data conversion processing of the argument to be transmitted / received in the remote procedure call processing between the host computers having the same data representation format. However, it is to improve the efficiency of remote procedure call processing.

[0008]

The data conversion system in the first remote procedure call processing of the present invention is set from an arbitrary computer system connected to a network to another computer system connected to the same network. A data conversion system in a remote procedure call process for calling a remote procedure, wherein the arbitrary computer system, when transmitting a remote procedure execution request to the other computer system, a data representation format of the request and the other If it is determined that the data representation format adopted by the computer system of No. 2 is different, the extended remote procedure request processing for transmitting after converting the data representation format of the request into a predetermined data representation format, and the other computer The system interprets the remote procedure execution request sent from the arbitrary computer system. The running remote procedure, including extended remote procedure acceptance process returns the execution result to the arbitrary computer system.

The second data conversion system in the remote procedure call processing of the present invention is a remote procedure for calling a remote procedure set from another computer system connected to the network to another computer system connected to the same network. A data conversion system in a calling process, wherein when the arbitrary computer system transmits a remote procedure execution request set to the other computer system, the data representation format of the request and the other computer system are If it is determined that the adopted data representation formats are different, the extended remote procedure request processing for transmitting after converting the data representation format of the request into a predetermined data representation format, the remote procedure, and another computer system Interpret the request to execute this remote procedure, execute this remote procedure, and Composed of an extended remote procedure acceptance processing and returns the results.

The data conversion system in the third remote procedure call processing of the present invention calls the remote procedure set in the second computer system connected to the same network from the first computer system connected to the network. A data conversion system in a remote procedure call process, wherein the first computer system transmits / receives an application program for calling a remote procedure set in the second computer system, and transmission / reception for each computer system connected to the network. An extended data conversion compatible host management table that holds information as to whether or not the format of the data to be stored is the same as that of the own computer system, and this extension when transmitting the remote procedure execution request to the second computer system. Refer to the host management table for data conversion and When it is determined that the data expression format adopted by the second computer system is different, the extended remote procedure request processing is performed after converting the data expression format of the request into a predetermined data expression format and then transmitting the request. ,
The second computer system manages the remote procedure and an extended data conversion compatible host management that holds information as to whether or not the format of data transmitted and received for each computer system connected to the network is the same as that of the own computer system. The table and the remote procedure execution request transmitted from the first computer system are received, the extended data conversion compatible host management table is referred to, and the data adopted by the own computer system and the first computer system is received. If it is determined that the expression formats are different, the data expression format of the request is converted into the data expression format adopted by the computer system, the remote procedure is executed according to the request, and the execution result is the first result. It is composed of the extended remote procedure acceptance processing that is returned to the computer system.

The data conversion system in the fourth remote procedure call processing of the present invention is a remote procedure for calling a remote procedure set from another computer system connected to the network to another computer system connected to the same network. A data conversion system in a calling process, wherein the arbitrary computer system has an application program for calling a remote procedure set in the other computer system and a format of data transmitted and received for each computer system connected to the network. Extended data conversion compatible host management table that holds information as to whether or not it is the same as the own computer system, and this extended data conversion compatible host management table when transmitting the remote procedure execution request to the other computer system Please refer to your own computer system and other If it is determined that the data representation format adopted by the mobile device system is different, the extended remote procedure request processing for transmitting after converting the data representation format of the request into a predetermined data representation format, the remote procedure, and the other When the remote system execution request sent from the computer system is received and it is determined that the data representation format adopted by the own computer system and the other computer system is different by referring to the extended data conversion compatible host management table. Is an extended remote procedure for converting the data representation format of the request into the data representation format adopted by the own computer system, executing this remote procedure according to the request, and returning the execution result to the other computer system. It is composed of a reception process.

The data conversion system in the fifth remote procedure call processing of the present invention calls the remote procedure set in the second computer system connected to the same network from the first computer system connected to the network. A data conversion system in a remote procedure call process, wherein the first computer system includes an application program for calling a remote procedure set in the second computer system, and each computer system connected to the network, It is composed of a computer system name and an extended data conversion compatible host management table that holds a flag that is turned on if the expression format of the data to be sent / received is the same as the own computer system, and is turned off if it is different,
Furthermore, the remote procedure call request is received from the application program and the remote procedure call result is returned to the application program, and the remote procedure call request is received from the remote procedure call acceptance process. , A request destination host determining process for determining whether or not the second computer system in which the remote procedure exists is registered in the extended data conversion compatible host management table, and the second host is determined by the request destination host determining process. When it is determined that the computer system is not registered in the extended data conversion compatible host management table, information indicating whether the data representation format of the second computer system is the same as the data representation format of the own computer system. If you request the acquisition and receive the information, To add the entry for the second computer system to the extended data conversion compatible host management table, and further set the flag of the entry according to the information, and the request destination host determination processing. When it is determined that the second computer system is registered in the extended data conversion compatible host management table and the flag of the entry of the second computer system is ON in the table, the remote computer When requesting a procedure call without conversion, and when information about the data representation format of the second computer system is received, the procedure is returned without conversion to the extended data conversion initialization process, and the remote procedure When the execution result is received, remote procedure call acceptance processing without conversion The second computer system is registered in the extended data conversion compatible host management table by the local data encoding / decoding processing to be returned and the request destination host determination processing, and the entry of the second computer system is made in the table. Is determined to be off, the remote procedure call request is converted into a network standard data format, and the second computer system data representation format received from the extended data conversion initialization processing is received. The information acquisition request regarding the second computer system is converted into the network standard data format, and when the information regarding the data representation format of the second computer system is received, the network standard data format is converted into the local data format and the extended data conversion initial Returned to the computerization process, and the remote When the execution result of the procedure is received, the data encoding / decoding processing of converting from the network standard data format to the local data format and returning to the remote procedure call acceptance processing, and the local data encoding / decoding processing or the data encoding / decoding The request for acquisition of information regarding the data representation format of the second computer system received from the process or the request for calling the remote procedure is transmitted to the second computer system, and the first request received from the second computer system is transmitted. Information regarding the data representation format of the computer system 2 is returned to the data encoding / decoding processing,
Further, the execution result of the remote procedure received from the second computer system is sent to the local data encoding / decoding process when the flag of the entry of the second computer system in the extended data conversion compatible host management table is ON. , And an extended remote procedure request process including another host call process for returning to the data encoding / decoding process when off, the second computer system is provided for each computer system connected to the network. An extended data conversion compatible host management table that holds a flag that is turned on if the computer system name and the format of the data to be sent / received are the same as the computer system, and off if they are different, and the computer that requested the remote procedure. This is a host management table that supports extended data conversion for the system In addition, it is determined whether the data representation format of the computer system is the same as that of the computer system. If they are the same, the flag of the entry is turned on, and if it is different, it is turned off. Extended data conversion initialization remote The remote procedure including a procedure, and the first procedure
A request to obtain information about the data representation format of the second computer system or a request to call the remote procedure from the other host call processing of the computer system, and information about the data representation format of the second computer system, Alternatively, another host call acceptance process for returning the execution result of the remote procedure to the other host call process, and an acquisition request for information regarding the data representation format of the second computer system from the other host call acceptance process, or the remote procedure By a request source host determination process that determines whether the first computer system that has made the request is registered in the extended data conversion compatible host management table, and the request source host determination process. The first computer system is the extended data If it is registered in the data conversion compatible host management table and it is determined that the flag of the entry of the first computer system is ON in the table, the call of the remote procedure is directly requested without conversion. At the same time, when the execution result of the remote procedure is received, the first computer system executes the local data decoding / encoding process that returns the conversion result to the request source host determination process without conversion, and the first computer system by the request source host determination process. If it is registered in the extended data conversion compatible host management table and it is determined that the flag of the entry of the first computer system in the table is OFF, the remote procedure call request is made in the network standard data format. From the requesting host When a request for acquiring the information about the data representation format of the second computer system received from the fixed process is converted from the network standard data format to the local data format, and the information about the data representation format of the second computer system is received. The local data format is converted to the network standard data format and returned to the other host call acceptance processing. Further, when the execution result of the remote procedure is received, the local data format is converted to the network standard data format and the The remote procedure is executed according to the data decoding / encoding processing to be returned to the other host call acceptance processing and the remote procedure calling request received from the local data decoding / encoding processing, and the execution result is the local data decoding / encoding. When the remote procedure call request is received from the data decoding / encoding processing, the remote procedure is executed according to the request, and the execution result is returned to the data decoding / encoding processing. When an acquisition request for information regarding the data representation format of the second computer system is received from the data decoding / encoding processing, the extended data conversion initialization remote procedure is executed in accordance with the request, and the execution result is data decoded. -It consists of extended remote procedure acceptance processing including procedure call processing that is returned to encoding processing.

The data conversion system in the sixth remote procedure call processing of the present invention is a remote procedure for calling a remote procedure set from another computer system connected to the network to another computer system connected to the same network. A data conversion system in a calling process, wherein the arbitrary computer system is an application program for calling a remote procedure set in the other computer system, and a computer system name and transmission / reception for each computer system connected to the network. ON when the data representation format is the same as the local computer system,
If it is different, it is comprised of an extended data conversion compatible host management table that holds a flag that is turned off, and further accepts a request to call the remote procedure from the application program and returns the execution result of the remote procedure to the application program. Remote procedure call acceptance processing, and whether or not the remote procedure call request is received from the remote procedure call acceptance processing and whether the other computer system in which the remote procedure exists is registered in the extended data conversion compatible host management table. If it is determined by the request destination host determination processing that determines whether or not the other computer system is not registered in the extended data conversion compatible host management table by the request destination host determination processing, the other computer system The data representation format of System is requested to acquire information that is the same as the data representation format of the system, and when the information is received, an entry for the other computer system is added to the extended data conversion compatible host management table, and The other computer system is registered in the extended data conversion compatible host management table by the extended data conversion initialization processing for setting the flag of the entry according to the information and the request destination host determination processing, and in the table, When it is determined that the flag of the entry of the other computer system is ON, the remote procedure call is directly requested without conversion, and when the information about the data representation format of the other computer system is received. Is returned to the extended data conversion initialization process without conversion, and the remote procedure When the execution result is received, the other computer system performs the extended data conversion compatible host management table by the local data encoding / decoding process of directly returning to the remote procedure call acceptance process without conversion and the request destination host determination process. If the flag of the entry of the other computer system in the table is determined to be off, the remote procedure call request is converted into a network standard data format, and the extended data is added. Converting the acquisition request of the information about the data representation format of the other computer system received from the conversion initialization process into the network standard data format, and when receiving the information about the data representation format of the other computer system, the network standard Data format to local Data format and return to the extended data conversion initialization process, and when the execution result of the remote procedure is received, it is converted from the network standard data format to the local data format and returned to the remote procedure call acceptance process. A data encoding / decoding process that performs the above-mentioned processing, a request to acquire information regarding the data representation format of the other computer system received from the local data encoding / decoding process or the data encoding / decoding process, or a request to call the remote procedure. Of the remote procedure received from the other computer system, the information about the data representation format of the other computer system received from the other computer system is returned to the data encoding / decoding process, and the remote procedure is received from the other computer system. Fruit The result is returned to the local data encoding / decoding processing when the flag of the entry of the other computer system in the extended data conversion compatible host management table is on, and returned to the data encoding / decoding processing when it is off. An extended remote procedure request process including a host call process, a remote procedure, and an entry for a computer system included in this remote procedure and requesting this remote procedure are added to this extended data conversion compatible host management table. An extended data conversion initialization remote procedure for determining whether the data representation format of the computer system is the same as that of the computer system, and if the same, turns on the flag of the entry, and if different, turns off the extended data conversion initialization remote procedure Representation form of the own computer system from the other host call processing of this computer system A request to acquire information about the remote procedure, or a request to call the remote procedure, and information about the data representation format of the computer system, or another host call acceptance processing that returns the execution result of the remote procedure to the other host call processing, From this other host call acceptance process, a request to acquire information regarding the data representation format of the own computer system or a request to call the remote procedure is received, and the other computer system that made the request is stored in the extended data conversion compatible host management table. The request source host determination process of determining whether or not the host computer is registered in the extended data conversion compatible host management table by the request source host determination process, and the other computer system in the table Computer system entry When it is determined that the lag is on, the remote procedure call is requested without conversion without conversion, and when the execution result of the remote procedure is received without conversion, the request source host judgment processing is performed without conversion. The other computer system is registered in the extended data conversion compatible host management table by the return local data decoding / encoding process and the request source host determination process, and the entry flag of the other computer system in the table. Is determined to be off, the remote procedure call request is converted from the network standard data format to the local data format, and the information about the data representation format of the own computer system received from the request source host determination processing is further received. Request to retrieve locally from network standard data format When the information about the data representation format of the local computer system is received, it is converted from the local data format to the network standard data format and returned to the other host call acceptance processing, and further the remote procedure When the execution result is received, the data decoding / encoding processing of converting the local data format to the network standard data format and returning to the other host call acceptance processing, and the remote procedure of the remote procedure received from the local data decoding / encoding processing The remote procedure is executed according to the call request, the execution result is returned to the local data decoding / encoding processing, and when the remote procedure calling request is received from the data decoding / encoding processing, the remote procedure is followed. When the remote procedure is executed, the execution result is returned to the data decoding / encoding processing, and a request for acquisition of information regarding the data representation format of the own computer system is received from the data decoding / encoding processing, in accordance with the request, An extended remote procedure acceptance process including a procedure call process for executing an extended data conversion initialization remote procedure and returning the execution result to the data decoding / encoding process.

[0014]

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

Referring to FIG. 1, the data conversion system in the remote procedure call processing according to the first embodiment of the present invention comprises an extended data conversion compatible host 101 and an extended data conversion compatible host 201.

The extended data conversion compatible host 101 accepts an application program 102 for making a remote procedure call and a remote procedure call 100 from the application program 102, and an extended remote procedure request process for requesting a remote host to execute a remote procedure. 103 and an extended data conversion compatible host management table 104.

Extended data conversion compatible host management table 1
Reference numeral 04 has an entry for each host computer that is the target of the remote procedure call, and each entry has a different data representation if the host name, the relevant host, and the local host have the same data representation. In this case, the flag that is turned off is held.

The extended data remote procedure request processing 103
Remote procedure call 100 from application program 102
Remote procedure call acceptance processing 107
A request destination host determination process 108, an extended data conversion initialization process 109, a data encoding / decoding process 110 for converting data in the local data format of the application program 102 to a network standard data format or vice versa, and an application program A local data encoding / decoding processing 111 for transferring the data in the local data format 102 without conversion and an other host calling processing 112 for requesting a remote procedure from the request destination host using the encoded data.

The request destination host determination processing 108 refers to the extended data conversion compatible host management table 104, and if the destination host is not registered, the extended data conversion initialization processing 109.
When the partner host is registered and the corresponding flag is on, the local data encoding / decoding processing 111 is called, and when it is off, the data encoding / decoding processing 110 is called.

The extended data conversion initialization processing 109 requests the remote host of the remote procedure request to execute the extended data conversion initialization remote procedure.

In the extended data conversion initialization processing 109, when the extended data conversion remote procedure that has been requested to be executed is not provided in the requested host, the requested host is an extended data conversion non-compliant host, so the expanded data conversion is not performed. The flag in the entry of the conversion compatible host management table 104 is set to OFF. Further, the extended data conversion initialization process 109
When the return value from the extended data conversion remote procedure 118 is "local data format mismatch", OFF is set, and when the return value is "local data format match", ON is set in the flag in the entry.

The extended remote procedure acceptance processing 202 accepts a remote procedure call request from the request source host 101 and calls the request source host determination processing 207, another host call acceptance processing 206, a request source host determination processing 207, and a network standard. A data decoding / encoding process 208 for converting an argument of the data format to the local data format or vice versa, a local data decoding / encoding process 209 for transferring the argument of the local data format without conversion, and an argument on which the decoding process is performed. Remote procedure requested in 20
4 is included in the procedure call process 210.

The request source host determination processing 207 refers to the extended data conversion compatible host management table 203, calls the local data decoding processing 209 if the flag on the entry corresponding to the request source host is on, and if the flag is off, decodes the data. The process 208 is called.

The remote procedure 204 is an extended data conversion initialization remote procedure 211, and remote procedures 212-214.
It has.

Extended data conversion initialization remote procedure 211
Adds an entry for the request source host to the extended data conversion compatible host management table 203, and turns on the flag of the entry if the data expression format of the argument passed from the request source host is the same as the own host format. Is set, and "local data format match" is returned to the request source host as a return value. If they are not the same, the flag is turned off and "local data format mismatch" is returned.

It is assumed that the remote procedure requested by the requesting host exists in the requesting host.

FIG. 1 shows a data conversion system in a remote procedure call process according to the first embodiment of the present invention.
~ It demonstrates with reference to FIG.

In the first embodiment, the request source host is the extended data conversion compatible host 101, the request destination host is the extended data conversion compatible host 201, and the request source host and the request destination host have the same local data format. Will be described.

First, the extended data conversion compatible host management table 104 of the request source host 101 and the request destination host 20
A case where mutual host computers are not registered in the extended data conversion compatible host management table 203 of No. 1 will be described.

Application program 10 of request source host 101
2, the remote procedure 212 in the request destination host 201
When the remote procedure call 100 is executed (step 300), the remote procedure call acceptance process 107 in the extended remote procedure request process 103 accepts the remote procedure call 100.

The request destination host determining process 108 determines whether or not the request destination host 201 targeted for the remote procedure call 100 accepted by the remote procedure call accepting process 107 is registered in the extended data conversion compatible host management table 104. (Step 301).

In the request-destination host determination processing 108, the request-destination host 201 makes the extended data conversion compatible host management table 1
If it is determined that it is not registered in 04, the extended data conversion initialization process 109 is executed.

The extended data conversion initialization processing 109 is performed by the extended data conversion initialization remote procedure 21 of the request destination host 201.
In order to execute 1, the execution request is data encoded.
It is converted into a network standard data format by the decoding process 110 to be an argument, and is passed to the request destination host 201 via the other host calling process 112 to request execution of the extended data conversion initialization remote procedure 211 (step 310).

At the request destination host 201, the request source host 1
The execution request of the extended data conversion initialization remote procedure 211 from 01 is accepted by the other host call acceptance processing 206 in the extended remote procedure acceptance processing 202 (step 400). It is determined whether or not it is registered in the extended data conversion compatible host management table 203 (step 401).

In the request source host determination processing 207, the request source host 101 executes the extended data conversion compatible host management table 2
Request source host 1
Extended data conversion initialization remote procedure 21 passed from 01
The argument of the execution request of 1 is passed to the data decoding / encoding processing 208.

Data decoding / encoding processing 208
Converts the execution request from the network standard data format to the original local data format (step 420).

From the result of the conversion processing by the data decoding / encoding processing 208, the procedure calling processing 210 recognizes that the request from the request source host 101 is an execution request for the extended data conversion initialization remote procedure 211, and The extended data conversion initialization remote procedure 211 is executed (step 440).

Extended data conversion initialization remote procedure 211
Adds an entry for the request source host 101 to the extended data conversion compatible host management table 203, and further, whether the data expression format of the argument passed from the request source host 101 and the data expression format of the own host match. If it is determined to be "local data format match", "ON" is registered in the flag 702 of the entry of the request source host 101 in the extended data conversion compatible host management table 203 (step 452).

Extended data conversion initialization remote procedure 211
Is the data decoding / encoding process 2 based on the determination result (“local data format match”) in step 451.
It is converted to the network standard data format by 08 and returned to the request source host 101 via the other host call acceptance processing 206 (step 453).

The other host calling process 112 of the request source host 101 receives the determination result (“local data format match”) returned from the request destination host 201, and passes it to the data encoding / decoding process 110.

Data encoding / decoding processing 110
Converts the determination result passed from the other host calling process 112 from the network standard data format to the original local data format, and then executes the extended data conversion initialization process 109.
Return to.

In the extended data conversion initialization processing 109, an entry for the request destination host 201 is added to the extended data conversion compatible host management table 104, and the judgment result returned from the request destination host 201 ("local data format match")
In accordance with the extended data conversion compatible host management table 104
On is registered in the flag 702 of the corresponding entry of the request-destination host 201 (step 311).

Next, by the above processing, the extended data conversion compatible host management table 10 of the request source host 101
4 and the extended data conversion compatible host management table 203 of the request destination host 201, after the mutual host computers are registered, a process of executing the remote procedure call 100 from the application program 102 to the remote procedure 212 in the request destination host 201 will be described. To do.

In step 301, the request destination host determining process 108 determines whether or not the request destination host 201 targeted for the remote procedure call 100 is registered in the extended data conversion compatible host management table 104. Extended data conversion compatible host management table 10
4 is registered in the request destination host 20 in the extended data conversion compatible host management table 104.
By referring to the flag 702 of the entry of No. 1 and turning on, the argument of the execution request to the remote procedure 212 is processed by the local data encoding / decoding process 1
Pass to 11.

The local data encoding / decoding processing 111 passes the argument of the execution request to the remote procedure 212 to the other host calling processing 112 without conversion (step 320).

The other host calling process 112 passes the argument of the execution request for the remote procedure 212 in the local data format passed from the local data encoding / decoding process 111 to the request destination host 201 (step 321).

At the request destination host 201, the request source host 1
When the argument of the execution request of the remote procedure 212 from 01 is received by the other host call acceptance processing 206 in the extended remote procedure acceptance processing 202 (step 4
00), the request source host determination process 207 is performed by the request source host 101 in the extended data conversion compatible host management table 203.
It is determined whether or not it is registered in (step 40
1).

In the request source host determination processing 207, the request source host 101 executes the extended data conversion compatible host management table 2
If it is determined that the request source host 10
The local data decoding / encoding process 20 executes the argument of the execution request of the remote procedure 212 passed from
Pass to 9.

The local data decoding / encoding process 209 passes the argument of the execution request of the remote procedure 212 passed from the request source host 101 to the procedure calling process 210 without conversion (step 410).

The procedure calling process 210 recognizes from the argument passed from the local data decoding / encoding process 209 that the request from the request source host 101 is an execution request for the remote procedure 212, and executes the remote procedure 212. Execute (step 44)
0).

The execution result of the remote procedure 212 is the result of the local data decoding / encoding process 209 and the other host call acceptance process 206, and the request source host 101
(Step 441).

The other host calling process 112 of the request source host 101 receives the execution result of the remote procedure 212 returned from the request destination host 201, and passes it to the local data encoding / decoding process 111.

The local data encoding / decoding process 111 passes the execution result of the remote procedure 212 passed from the other host calling process 112 to the remote procedure call accepting process 107 without conversion.

Remote procedure call acceptance processing 107
Returns the execution result of the remote procedure 212 passed from the local data encoding / decoding processing 111 to the application program 102 (step 322).

With the above, the processing of the data conversion system in the remote procedure call processing according to the first embodiment of the present invention is completed.

Whether the data conversion system in the remote procedure call processing according to the first embodiment of the present invention adopts the same data representation format as that of its own host for each host computer which is the target of the remote procedure call An extended data conversion compatible host management table having information indicating
The format of data that is sent and received only when it is determined that a different data format is adopted by referring to the table each time remote procedure call processing is executed between the host computer requesting remote procedure call processing and the requested host computer If the same data format is used, the efficiency of remote procedure call processing can be improved by not converting the data format when sending and receiving data between hosts. ing.

Referring to FIG. 1, the data conversion system in the remote procedure call processing according to the second embodiment of the present invention comprises an extended data conversion compatible host 101 and an extended data conversion compatible host 201.

The extended data conversion compatible host 101 accepts an application program 102 for making a remote procedure call and a remote procedure call 100 from this application program 102, and an extended remote procedure request process for requesting a remote host to execute a remote procedure. 103 and an extended data conversion compatible host management table 104.

Extended data conversion compatible host management table 1
Reference numeral 04 has an entry for each host computer that is the target of the remote procedure call, and each entry has a different data representation if the host name, the relevant host, and the local host have the same data representation. In this case, the flag that is turned off is held.

The extended data remote procedure request processing 103
Remote procedure call 100 from application program 102
Remote procedure call acceptance processing 107
A request destination host determination process 108, an extended data conversion initialization process 109, a data encoding / decoding process 110 for converting data in the local data format of the application program 102 to a network standard data format or vice versa, and an application program A local data encoding / decoding processing 111 for transferring the data in the local data format 102 without conversion and an other host calling processing 112 for requesting a remote procedure from the request destination host using the encoded data.

The request destination host determining process 108 refers to the extended data conversion compatible host management table 104, and if the destination host is not registered, the extended data conversion initialization process 109.
When the partner host is registered and the corresponding flag is on, the local data encoding / decoding processing 111 is called, and when it is off, the data encoding / decoding processing 110 is called.

The extended data conversion initialization processing 109 requests the remote host of the remote procedure request to execute the extended data conversion initialization remote procedure.

In the extended data conversion initialization processing 109, when the extended data conversion remote procedure requested to be executed is not provided in the requested host, the requested host is an unsupported extended data conversion data The flag in the entry of the conversion compatible host management table 104 is set to OFF. Further, the extended data conversion initialization process 109
When the return value from the extended data conversion remote procedure 118 is "local data format mismatch", OFF is set, and when the return value is "local data format match", ON is set in the flag in the entry.

The extended remote procedure acceptance processing 202 accepts a remote procedure call request from the request source host 101 and calls the request source host determination processing 207, another host call acceptance processing 206, a request source host determination processing 207, and a network standard. A data decoding / encoding process 208 for converting an argument of the data format to the local data format or vice versa, a local data decoding / encoding process 209 for transferring the argument of the local data format without conversion, and an argument on which the decoding process is performed. Remote procedure requested in 20
4 is included in the procedure call process 210.

The request source host determination process 207 refers to the extended data conversion compatible host management table 203, calls the local data decoding process 209 if the flag on the entry corresponding to the request source host is on, and if it is off, data decode The process 208 is called.

The remote procedure 204 is an extended data conversion initialization remote procedure 211 and remote procedures 212-214.
It has.

Extended data conversion initialization remote procedure 211
Adds an entry for the request source host to the extended data conversion compatible host management table 203, and turns on the flag of the entry if the data expression format of the argument passed from the request source host is the same as the own host format. Is set, and "local data format match" is returned to the request source host as a return value. If they are not the same, the flag is turned off and "local data format mismatch" is returned.

It is assumed that the remote procedure requested by the requesting host exists at the requesting host.

FIG. 1 shows the data conversion system in the remote procedure call processing according to the second embodiment of the present invention.
~ It demonstrates with reference to FIG.

In the second embodiment, the request source host is the extended data conversion compatible host 101, the request destination host is the extended data conversion compatible host 201, and the request source host and the request destination host have different local data formats. Will be described.

First, the extended data conversion compatible host management table 104 of the request source host 101 and the request destination host 20
A case where mutual host computers are not registered in the extended data conversion compatible host management table 203 of No. 1 will be described.

Application program 10 of request source host 101
2, the remote procedure 212 in the request destination host 201
When the remote procedure call 100 is executed (step 300), the remote procedure call acceptance process 107 in the extended remote procedure request process 103 accepts the remote procedure call 100.

The request destination host determination processing 108 determines whether or not the request destination host 201 targeted for the remote procedure call 100 accepted by the remote procedure call acceptance processing 107 is registered in the extended data conversion compatible host management table 104. (Step 301).

In the request-destination host determination processing 108, the request-destination host 201 makes the extended data conversion compatible host management table 1
If it is determined that it is not registered in 04, the extended data conversion initialization process 109 is executed.

The extended data conversion initialization process 109 is performed by the extended data conversion initialization remote procedure 21 of the request destination host 201.
In order to execute 1, the execution request is data encoded.
It is converted into a network standard data format by the decoding process 110 to be an argument, and is passed to the request destination host 201 via the other host calling process 112 to request execution of the extended data conversion initialization remote procedure 211 (step 310).

In the request destination host 201, the request source host 1
The execution request of the extended data conversion initialization remote procedure 211 from 01 is accepted by the other host call acceptance processing 206 in the extended remote procedure acceptance processing 202 (step 400). It is determined whether or not it is registered in the extended data conversion compatible host management table 203 (step 401).

In the request source host determination processing 207, the request source host 101 executes the extended data conversion compatible host management table 2
Request source host 1
Extended data conversion initialization remote procedure 21 passed from 01
The argument of the execution request of 1 is passed to the data decoding / encoding processing 208.

Data decoding / encoding processing 208
Converts the execution request from the network standard data format to the original local data format (step 420).

From the result of the conversion processing by the data decoding / encoding processing 208, the procedure calling processing 210 recognizes that the request from the request source host 101 is an execution request for the extended data conversion initialization remote procedure 211, and The extended data conversion initialization remote procedure 211 is executed (step 440).

Extended data conversion initialization remote procedure 211
Adds an entry for the request source host 101 to the extended data conversion compatible host management table 203, and further, whether the data expression format of the argument passed from the request source host 101 and the data expression format of the own host match. (Step 451) and if it is determined that “local data format does not match”, OFF is registered in the flag 702 of the entry of the request source host 101 in the extended data conversion compatible host management table 203 (step 452).

Extended data conversion initialization remote procedure 211
Converts the determination result (“local data format mismatch”) in step 451 into the network standard data format by the data decoding / encoding processing 208, and returns it to the request source host 101 via the other host call acceptance processing 206 ( Step 453).

The other host calling process 112 of the request source host 101 receives the determination result (“local data format mismatch”) returned from the request destination host 201, and passes it to the data encoding / decoding process 110.

Data encoding / decoding processing 110
Converts the determination result passed from the other host calling process 112 from the network standard data format to the original local data format, and then executes the extended data conversion initialization process 109.
Return to.

The extended data conversion initialization process 109 adds an entry for the request destination host 201 to the extended data conversion compatible host management table 104, and the judgment result returned from the request destination host 201 ("local data format mismatch") According to the flag 7 of the entry of the request destination host 201 in the extended data conversion compatible host management table 104
Off is registered in 02 (step 311).

Next, by the above processing, the extended data conversion compatible host management table 10 of the request source host 101
4 and the extended data conversion compatible host management table 203 of the request destination host 201, after the mutual host computers are registered, a process of executing the remote procedure call 100 from the application program 102 to the remote procedure 212 in the request destination host 201 will be described. To do.

In step 301, the request destination host determining process 108 determines whether or not the request destination host 201 targeted for the remote procedure call 100 is registered in the extended data conversion compatible host management table 104. Extended data conversion compatible host management table 10
4 is registered in the request destination host 20 in the extended data conversion compatible host management table 104.
By referring to the flag 702 of the entry of No. 1 and turning off, the argument of the execution request to the remote procedure 212 is passed to the data encoding / decoding processing 110.

Data encoding / decoding processing 110
Converts the argument of the execution request for the remote procedure 212 in the local data format into the network standard data format (step 302).

The other host calling process 112 passes the argument of the execution request for the remote procedure 212 converted into the network standard data format by the data encoding / decoding process 110 to the request destination host 201 (step 321).

At the request destination host 201, the request source host 1
When the argument of the execution request of the remote procedure 212 from 01 is received by the other host call acceptance processing 206 in the extended remote procedure acceptance processing 202 (step 4
00), the request source host determination process 207 is performed by the request source host 101 in the extended data conversion compatible host management table 203.
It is determined whether or not it is registered in (step 40
1).

In the request source host judgment processing 207, the request source host 101 executes the extended data conversion compatible host management table 2
If it is determined that the request source host 10
The argument of the execution request of the remote procedure 212 passed from 1 is passed to the data decoding / encoding processing 208.

Data decoding / encoding processing 208
Is the remote procedure 212 passed from the requesting host 101.
The execution request argument is converted from the network standard data format to the original local data format (step 420).

In the procedure calling process 210, based on the result of the conversion process by the data decoding / encoding process 208, the request from the requesting host 101 is the remote procedure 21.
The remote procedure 212 is recognized and the remote procedure 212 is executed (step 440).

The execution result of the remote procedure 212 is converted into the network standard data format by the data decoding / encoding processing 208 and returned to the request source host 101 via the other host call acceptance processing 206 (step 441).

The other host calling process 112 of the request source host 101 receives the execution result of the remote procedure 212 returned from the request destination host 201,
It is passed to the decoding process 110.

Data encoding / decoding processing 110
Converts the execution result of the remote procedure 212 passed from the other host call processing 112 from the network standard data format to the original local data format, and then passes it to the remote procedure call acceptance processing 107.

Remote procedure call acceptance processing 107
The application program 102 using the execution result of the remote procedure 212 passed from the data encoding / decoding processing 110.
(Step 322).

With the above, the processing of the data conversion system in the remote procedure call processing according to the second embodiment of the present invention is completed.

Whether or not the data conversion system in the remote procedure call processing according to the second embodiment of the present invention adopts the same data representation format as that of its own host for each host computer that is the target of the remote procedure call An extended data conversion compatible host management table having information indicating
The format of data that is sent and received only when it is determined that a different data format is adopted by referring to the table each time remote procedure call processing is executed between the host computer requesting remote procedure call processing and the requested host computer Is converted, the efficiency of the remote procedure call process can be improved.

Referring to FIG. 1, the data conversion system in the remote procedure call processing according to the third embodiment of the present invention comprises an extended data conversion compatible host 101 and an extended data conversion incompatible host 250.

The extended data conversion compatible host 101 accepts an application program 102 for calling a remote procedure and a remote procedure call 100 from the application program 102, and an extended remote procedure request process for requesting the request destination host to execute the remote procedure. 103, an extended remote procedure acceptance process 106 that receives a remote procedure execution request from another host and calls the remote procedure, a remote procedure 105 called from the extended remote procedure acceptance process, and an extended data conversion compatible host management table 104. I have it.

Extended data conversion compatible host management table 1
Reference numeral 04 has an entry for each host computer that is the target of the remote procedure call, and each entry is on if the host name and the relevant host and the local host have the same data representation, and has a different data representation. In this case, the flag that is turned off is held.

Extended data remote procedure request processing 103
Remote procedure call 100 from application program 102
Remote procedure call acceptance processing 107
A request destination host determination process 108, an extended data conversion initialization process 109, a data encoding / decoding process 110 for converting data in the local data format of the application program 102 to a network standard data format or vice versa, and an application program A local data encoding / decoding process 111 for transferring the data in the local data format 102 without conversion as it is, and another host calling process 112 for requesting a remote procedure from the request destination host using the encoded data.

The request destination host determination processing 108 refers to the extended data conversion compatible host management table 104, and if the destination host is not registered, the extended data conversion initialization processing 109.
When the partner host is registered and the corresponding flag is on, the local data encoding / decoding processing 111 is called, and when it is off, the data encoding / decoding processing 110 is called.

The extended data conversion initialization process 109 requests the remote host of the remote procedure request to execute the extended data conversion initialization remote procedure.

In the extended data conversion initialization processing 109, if the extended data conversion remote procedure requested to be executed is not provided in the requested host, the requested host is an extended data conversion non-compliant host, so The flag in the entry of the conversion compatible host management table 104 is set to OFF. Further, the extended data conversion initialization process 109
When the return value from the extended data conversion remote procedure 118 is "local data format mismatch", OFF is set, and when the return value is "local data format match", ON is set in the flag in the entry.

The extended data conversion incompatible host 250 receives a remote procedure request execution requested by another host and calls a corresponding remote procedure, and a remote procedure receiving process 251 and a remote procedure receiving process 251 call a remote procedure 252. Is equipped with.

The remote procedure acceptance processing 251 uses another host call acceptance processing 255 that accepts a remote procedure execution request from the request source host, and the arguments passed from the other host call acceptance processing 255 in the network standard data format or its On the contrary, it is composed of a data decoding / encoding process 256 for conversion, and a procedure calling process 257 for executing the requested remote procedure using the argument converted by the data decoding / encoding process 256.

It is assumed that the remote procedure requested by the requesting host exists in the requesting host.

A data conversion system in the remote procedure call processing according to the third embodiment of the present invention will be described with reference to FIGS. 1, 2 and 5.

In the third embodiment, the case where the request source host is the extended data conversion compatible host 101 and the request destination host is the extended data conversion incompatible host 250 will be described.

First, the request destination host 250 is added to the extended data conversion compatible host management table 104 of the request source host 101.
The case where is not registered will be described.

Application program 10 of request source host 101
2, the remote procedure 258 in the request destination host 250
When the remote procedure call 100 is executed (step 300), the remote procedure call acceptance process 107 in the extended remote procedure request process 103 accepts the remote procedure call 100.

The request destination host determination processing 108 determines whether or not the request destination host 250 targeted for the remote procedure call 100 accepted by the remote procedure call acceptance processing 107 is registered in the extended data conversion compatible host management table 104. (Step 301).

In the request-destination host determination processing 108, the request-destination host 250 makes the extended data conversion compatible host management table 1
If it is determined that it is not registered in 04, the extended data conversion initialization process 109 is executed.

The extended data conversion initialization process 109 executes the extended data conversion initialization remote procedure in the remote procedure 252 of the request destination host 250 by the data encoding / decoding process 110 to execute the execution request in the network standard data format. Is converted to an argument and passed to the request destination host 250 via the other host calling process 112 to request execution of the extended data conversion initialization remote procedure (step 310).

At the request destination host 250, the request source host 1
The extended data conversion initialization remote procedure execution request from 01 is accepted by the remote host call acceptance processing 255 in the remote procedure acceptance processing 251 (step 600),
The argument of the extended data conversion initialization remote procedure execution request passed from the request source host 101 is passed to the data decoding / encoding process 256.

Data decoding / encoding processing 256
Converts the execution request from the network standard data format to the original local data format (step 601).

From the result of the conversion processing by the data decoding / encoding processing 256, the procedure calling processing 257 recognizes that the request from the requesting host 101 is an execution request for the extended data conversion initialization remote procedure. By determining that the extended data conversion initialization remote procedure does not exist in the procedure 252 (step 6
02), the error information (“extended data conversion initialization remote procedure is not registered”) is converted into the network standard data format by the data decoding / encoding process 256, and the requesting host is processed through the other host call acceptance process 255. It is returned to 101 (step 610).

The other host calling process 112 of the request source host 101 receives the error information (“remote procedure is not registered”) returned from the request destination host 201, and passes it to the data encoding / decoding process 110.

Data encoding / decoding processing 110
Converts the determination result passed from the other host calling process 112 from the network standard data format to the original local data format, and then executes the extended data conversion initialization process 109.
Return to.

The extended data conversion initialization process 109 adds an entry for the request destination host 250 to the extended data conversion compatible host management table 104, and returns the error information ("extended data conversion initialization remote" returned from the request destination host 250. The procedure is not registered ”), and the request destination host 250 in the extended data conversion compatible host management table 104
OFF is registered in the flag 702 of the entry (step 311).

Next, by the above-mentioned processing, the extended data conversion compatible host management table 10 of the request source host 101
4 is registered in the request destination host 250, the remote procedure 258 in the request destination host 250 from the application program 102 is performed.
The process of executing the remote procedure call 100 to the will be described.

In step 301, the request destination host judgment processing 108 judges whether or not the request destination host 250 targeted for the remote procedure call 100 is registered in the extended data conversion compatible host management table 104. Extended data conversion compatible host management table 10
4 is registered, the request destination host 25 in the extended data conversion compatible host management table 104 is further determined.
By referring to the flag 702 of the entry of 0 and being off, the argument of the execution request for the remote procedure 258 is passed to the data encoding / decoding processing 110.

Data encoding / decoding processing 110
Converts the argument of the execution request for the remote procedure 258 into a network standard data format (step 302).

The other host calling process 112 passes the argument of the execution request for the remote procedure 258 converted into the network standard data format by the data encoding / decoding process 110 to the request destination host 250 (step 321).

At the request destination host 250, the request source host 1
When the argument of the execution request of the remote procedure 258 from 01 is received by the other host call acceptance processing 255 in the extended remote procedure acceptance processing 251, (step 6
00), and passes the argument to the data decoding / encoding processing 256.

Data decoding / encoding processing 256
Is the remote procedure 258 passed from the requesting host 101.
The execution request argument is converted from the network standard data format to the original local data format (step 601).

As a result of the conversion processing by the data decoding / encoding processing 256, the procedure calling processing 257 determines that the request from the request source host 101 is a remote procedure 258.
The remote procedure 2
58 is executed (step 620).

The execution result of the remote procedure 258 is converted into the network standard data format by the data decoding / encoding processing 256, and the other host call acceptance processing 2
It is returned to the request source host 101 via 55 (step 621).

The other host calling process 112 of the request source host 101 receives the execution result of the remote procedure 258 returned from the request destination host 250,
It is passed to the decoding process 110.

Data encoding / decoding processing 110
Converts the execution result of the remote procedure 258 passed from the other host call processing 112 from the network standard data format to the original local data format, and then passes the result to the remote procedure call acceptance processing 107.

Remote procedure call acceptance processing 107
Uses the execution result of the remote procedure 258 passed from the data encoding / decoding processing 110 as the application program 102.
(Step 322).

With the above, the processing of the data conversion system in the remote procedure call processing according to the third embodiment of the present invention is completed.

The data conversion system in the remote procedure call processing according to the third embodiment of the present invention has an extension having information indicating whether or not the same data representation format as that of its own host, which is a feature of the present invention, is adopted. When not only a host computer that has a data conversion compatible host management table and executes remote procedure call processing, but also a conventional host computer that does not hold the table or a host computer that uses another data representation format is added to the network Also in the above, there is an effect that the remote procedure call process can be carried out without adding a special rule.

Referring to FIG. 1, the data conversion system in the remote procedure call processing according to the fourth embodiment of the present invention comprises an extended data conversion compatible host 201 and an extended data conversion incompatible host 250.

The extended data conversion-incompatible host 250 uses the application program 253 for calling the remote procedure call 260.
And a remote procedure request processing 254 that receives a remote procedure call 260 from the application program 253 and requests the request destination host to execute the remote procedure.

The remote procedure request process 254 receives the remote procedure call acceptance process 261 that accepts the remote procedure call 260 from the application program 253 and the argument passed from the remote procedure call acceptance process 261 in the network standard data format or vice versa. Data decoding / encoding process 2
62 and another host call process 26 for requesting the request destination host to execute a remote procedure with the argument encoded by the data decoding / encoding process 262.
It consists of 3.

The extended remote procedure acceptance processing 202 accepts a remote procedure call request from the request source host 250 and calls the request source host determination processing 207, the other host call acceptance processing 206, the request source host determination processing 207, and the network standard. Data decoding / encoding process 208 for converting the argument of the data format to the local data format of the application program or vice versa
And a local data decoding / encoding process 209 for transferring the arguments in the local data format without conversion, and a procedure calling process 210 for executing the remote procedure 204 requested by the argument for which the decoding process is performed.

The request source host judgment processing 207 refers to the extended data conversion compatible host management table 203, calls the local data decoding processing 209 if the flag on the entry corresponding to the request source host is on, and if the flag is off, decodes the data. The process 208 is called.

The remote procedure 204 is the remote procedure 212-.
It is equipped with 214.

It is assumed that the remote procedure requested by the requesting host exists in the requesting host.

A data conversion system in the remote procedure call processing according to the fourth embodiment of the present invention will be described with reference to FIGS. 1, 3 and 4.

In the fourth embodiment, the case where the request source host is the extended data conversion incompatible host 250 and the request destination host is the extended data conversion compatible host 201 will be described.

Application program 25 of request source host 250
3, the remote procedure 212 in the request destination host 201
When the remote procedure call 260 is executed (step 500), the remote procedure call acceptance processing 261 in the extended remote procedure request processing 254 accepts the remote procedure call 260 and executes the remote procedure 212 of the request destination host 201. Then, the execution request is converted into a network standard data format by the data encoding / decoding processing 262 (step 501) to be an argument, which is passed to the request destination host 201 via the other host calling processing 263 to request execution of the remote procedure 212. (Step 502).

At the request destination host 201, the request source host 2
A request to execute the remote procedure 212 from the remote procedure accepting request 50 is accepted by the other host call accepting process 206 in the extended remote procedure accepting process 202 (step 400). It is determined whether it is registered in the management table 203 (step 401).

In the request source host judgment processing 207, the request source host 250 executes the extended data conversion compatible host management table 2
Request source host 2
The argument of the execution request of the remote procedure 212 passed from 50 is passed to the data decoding / encoding processing 208.

Data Decoding / Encoding Processing 208
Converts the execution request from the network standard data format to the original local data format (step 420).

In the procedure call process 210, as a result of the conversion process by the data decoding / encoding process 208, the request from the request source host 250 is the remote procedure 212.
(Step 42)
1) execute the remote procedure 212 (step 44)
0).

The execution result of the remote procedure 212 is converted into the network standard data format by the data decoding / encoding processing 208, and another host call acceptance processing 2
It is returned to the request source host 250 via 06 (step 441).

The other host calling process 263 of the request source host 250 receives the execution result of the remote procedure 212 returned from the request destination host 201,
The result is passed to the decoding process 262.

Data encoding / decoding processing 262
Converts the execution result of the remote procedure 212 passed from the other host call processing 263 from the network standard data format to the original local data format, and then passes it to the remote procedure call acceptance processing 261.

Remote procedure call acceptance processing 261
Uses the execution result of the remote procedure 212 passed from the data encoding / decoding processing 262 as an application program 253.
(Step 503).

With the above, the processing of the data conversion system in the remote procedure call processing according to the fourth embodiment of the present invention is completed.

The data conversion system in the remote procedure call processing according to the fourth embodiment of the present invention has an extension having information indicating whether or not the same data representation format as that of the own host, which is a feature of the present invention, is adopted. When not only a host computer that has a data conversion compatible host management table and executes remote procedure call processing, but also a conventional host computer that does not hold the table or a host computer that uses another data representation format is added to the network Also in the above, there is an effect that the remote procedure call process can be carried out without adding a special rule.

[0155]

As described above, the data conversion system in the remote procedure call process of the present invention performs the data conversion process of the argument to be transmitted and received in the remote procedure call process between the host computers having the same data representation format. Since there is no such data, the overhead required for the data conversion processing can be reduced and the efficiency of the remote procedure call processing can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing first to fourth embodiments of the present invention.

FIG. 2 is a flow chart showing processing of an extended data conversion compatible host 101 in the first, second and third embodiments of the present invention.

FIG. 3 is a flow chart showing processing of an extended data conversion compatible host 201 in the first, second and fourth embodiments of the present invention.

FIG. 4 is a flow chart showing processing of an extended data conversion compatible host 201 in a fourth embodiment of the present invention.

FIG. 5 is a flow chart showing processing of an extended data conversion non-compliant host 250 in the third embodiment of the present invention.

FIG. 6 is a diagram showing the contents of an extended data conversion compatible host management table 104 and an extended data conversion compatible host management table 203 in the first to fourth embodiments of the present invention.

[Explanation of symbols]

 100 Remote Procedure Call 101 Extended Data Conversion Support Host 102 Application Program 103 Extended Remote Procedure Request Processing 104 Extended Data Conversion Support Host Management Table 105 Remote Procedure 106 Extended Remote Procedure Reception Processing 107 Remote Procedure Call Reception Processing 108 Request Destination Host Judgment Processing 109 Expansion Data conversion initialization processing 110 Data encoding / decoding processing 111 Local data encoding / decoding processing 112 Other host call processing 113 Other host call acceptance processing 114 Request source host determination processing 115 Data decoding / encoding processing 116 Local data decoding / encoding processing 117 Procedure Call processing 118 Extended data conversion initialization Remote procedure 119 Remote procedure 1 120 Remote procedure 2 121 Remote hand Continuation 3 201 Extended data conversion compatible host 202 Extended remote procedure acceptance processing 203 Extended data conversion compatible host management table 204 Remote procedure 205 Extended remote procedure request processing 206 Other host call acceptance processing 207 Request source host determination processing 208 Data decoding / encoding processing 209 Local data decoding / encoding processing 210 Procedure call processing 211 Extended data conversion initialization remote procedure 212 Remote procedure 1 213 Remote procedure 2 214 Remote procedure 3 250 Extended data conversion incompatible host 251 Remote procedure acceptance processing 252 Remote procedure 253 Application program 254 Remote Procedure request processing 255 Other host call acceptance processing 256 Data decoding / encoding processing 257 Procedure call processing 258 Remote procedure Operation 1 259 Remote procedure 2 260 Remote procedure 3 261 Remote procedure call acceptance processing 262 Data decoding / encoding processing 263 Other host call processing

Claims (6)

[Claims] 1. A data conversion system in a remote procedure call process for calling a remote procedure set in another computer system connected to the same network from an arbitrary computer system connected to a network, wherein the arbitrary computer When the system determines that the data representation format of the request and the data representation format adopted by the other computer system are different when transmitting the remote procedure execution request to the other computer system, An extended remote procedure request process for transmitting after converting the data representation format of the request into a predetermined data representation format, wherein the other computer system interprets the remote procedure execution request transmitted from the arbitrary computer system. Then, the remote procedure is executed, and the execution result is returned to the arbitrary computer system. Data conversion system in a remote procedure call process, characterized in that it comprises a procedure acceptance process. 2. A data conversion system in a remote procedure call process for calling a remote procedure set in another computer system connected to the same network from an arbitrary computer system connected to the network, wherein the arbitrary computer When transmitting a remote procedure execution request set to the other computer system, the system determines that the data representation format of the request and the data representation format adopted by the other computer system are different. Interprets the extended remote procedure request processing that is transmitted after converting the data representation format of the request into a predetermined data representation format, the remote procedure, and the execution request of this remote procedure transmitted from another computer system. It has an extended remote procedure acceptance process that executes remote procedures and returns the execution results. Data conversion system in a remote procedure call processing for. 3. A data conversion system in a remote procedure call process for calling a remote procedure set in a second computer system connected to the same network from a first computer system connected to a network, said data conversion system comprising: The first computer system determines whether the application program for calling a remote procedure set in the second computer system and the format of data transmitted / received for each computer system connected to the network are the same as those of the own computer system. And an extended data conversion compatible host management table that holds such information, and refers to this extended data conversion compatible host management table when transmitting the remote procedure execution request to the second computer system If the data representation format adopted by the second computer system is different If the request is refused, an extended remote procedure request process for converting the data expression format of the request into a predetermined data expression format and transmitting the converted data is provided, and the second computer system is connected to the remote procedure and the network. An extended data conversion compatible host management table that holds information as to whether the format of data transmitted and received for each computer system is the same as that of the local computer system; and execution of the remote procedure transmitted from the first computer system. The request is received, the host management table corresponding to the extended data conversion is referred to, and the own computer system and the first
When it is determined that the data representation format adopted by the computer system of No. 1 is different, the data representation format of the request is converted into the data representation format adopted by the own computer system,
A data conversion system in remote procedure call processing, comprising: an extended remote procedure acceptance process for executing the remote procedure according to the request and returning the execution result to the first computer system. 4. A data conversion system in a remote procedure call process for calling a remote procedure set in another computer system connected to the same network from an arbitrary computer system connected to the network, wherein the arbitrary computer The system holds an application program for calling a remote procedure set in the other computer system, and information on whether or not the format of data transmitted / received for each computer system connected to the network is the same as the own computer system. The extended data conversion compatible host management table, and when transmitting the remote procedure execution request to the other computer system, the extended data conversion compatible host management table is referred to so that the own computer system and the other computer system can When it is determined that the data representation formats used are different Receives an extended remote procedure request process which is transmitted after converting the data representation format of the request into a predetermined data representation format, a remote procedure, and a request to execute this remote procedure transmitted from another computer system, and the extension If it is determined that the data representation format adopted by the own computer system and the other computer system is different by referring to the data conversion compatible host management table, the own computer system adopts the requested data representation format. Data in a remote procedure call process, which is provided with an extended remote procedure acceptance process for converting the data into an existing data representation format, executing this remote procedure according to the request, and returning the execution result to the other computer system. Conversion system. 5. A data conversion system in a remote procedure call process for calling a remote procedure set in a second computer system connected to the same network from a first computer system connected to a network, said data conversion system comprising: The first computer system is an application program for calling a remote procedure set in the second computer system, and a computer system name and a representation format of data to be transmitted and received for each computer system connected to the network. And an extended data conversion compatible host management table that holds a flag that is turned on when the remote procedure is the same as that of the remote procedure. A function that returns the execution result to the application program. Procedure call acceptance processing, and whether or not the remote procedure call request is received from the remote procedure call acceptance processing, and whether or not the second computer system in which the remote procedure exists is registered in the extended data conversion compatible host management table. And the second computer if the second computer system is determined not to be registered in the extended data conversion compatible host management table by the request destination host determination process. Requesting acquisition of information as to whether the data representation format of the system is the same as the data representation format of the own computer system, and when the information is received, the entry for the second computer system is converted into the extended data conversion. Add to the corresponding host management table, and add the flag of the entry according to the information. The second computer system is registered in the extended data conversion compatible host management table by the extended data conversion initialization process to determine and the request destination host determination process, and the entry of the second computer system in the table. If it is determined that the flag is ON, the remote procedure call is requested without conversion, and when the information about the data representation format of the second computer system is received, the conversion is performed without conversion. Return to the extended data conversion initialization process,
Further, when the execution result of the remote procedure is received, local data encoding / decoding processing for directly returning to the remote procedure call acceptance processing without conversion is performed, and the second computer system executes the extension data by the request destination host determination processing. If it is registered in the conversion compatible host management table and it is determined in the table that the flag of the entry of the second computer system is OFF, the remote procedure call request is converted to the network standard data format. In addition, the acquisition request for information about the data representation format of the second computer system received from the extended data conversion initialization process is converted into a network standard data format, and the information about the data representation format of the second computer system is converted. If you receive the network When the standard data format is converted to the local data format and returned to the extended data conversion initialization process, and when the execution result of the remote procedure is received, the network standard data format is converted to the local data format and the remote procedure is called. A data encoding / decoding process to be returned to the receiving process, an acquisition request for information regarding the data representation format of the second computer system received from the local data encoding / decoding process or the data encoding / decoding process, or the remote procedure The call request is transmitted to the second computer system, the information about the data representation format of the second computer system received from the second computer system is returned to the data encoding / decoding process, and the second Calculator of The execution result of the remote procedure received from the system to the local data encoding / decoding processing when the flag of the entry of the second computer system in the extended data conversion compatible host management table is ON, and when it is OFF An extended remote procedure request process including another host call process for returning to the data encoding / decoding process; and the second computer system, for each computer system connected to the network, a computer system name and data to be transmitted / received. If the format is the same as the local computer system, it is turned on if it is the same, and if it is different, it is turned off, and an extended data conversion compatible host management table, and an entry for the computer system that requested the remote procedure Add to the conversion compatible host management table, and And a remote procedure including an extended data conversion initialization remote procedure that determines whether the data representation format of the system is the same as that of the computer system, and if the same, turns on the flag of the entry, and turns it off if different. Further, receiving a request for acquisition of information regarding a data representation format of the second computer system or a request for calling the remote procedure from the other host calling process of the first computer system, and the second computer system. Related to the data representation format of the second computer system, or other host call acceptance processing for returning the execution result of the remote procedure to the other host call processing, and information regarding the data representation format of the second computer system from the other host call acceptance processing. Acquisition request,
Alternatively, a request source host determination process of determining whether the first computer system that has received the remote procedure call request and is registered in the extended data conversion compatible host management table, and the request source When it is determined by the host determination processing that the first computer system is registered in the extended data conversion compatible host management table and the entry flag of the first computer system in the table is determined to be ON, A local data decoding / encoding process for directly requesting the call of the remote procedure without conversion, and directly returning the execution result of the remote procedure to the request source host determination process without conversion, By the original host determination processing, the first computer system causes the extended data If it is registered in the exchange compatible host management table and it is determined that the flag of the entry of the first computer system in the table is off, the call request of the remote procedure is made from the network standard data format to the local standard data format. The second computer is converted into a data format, and further converted from a network standard data format to a local data format in an acquisition request of information related to the data representation format of the second computer system received from the request source host determination processing. When the information about the data representation format of the system is received, it is converted from the local data format to the network standard data format and returned to the other host call acceptance processing, and when the execution result of the remote procedure is received, the local data format is received. Format to network standard data A data decoding / encoding process of converting to a format and returning to the other host call acceptance process, and the remote procedure is executed according to the remote procedure call request received from the local data decoding / encoding process, and the execution result is the local In addition to returning to the data decoding / encoding processing, when the remote procedure calling request is received from the data decoding / encoding processing, the remote procedure is executed according to the request and the execution result is sent to the data decoding / encoding processing. When the request is returned and an acquisition request for information regarding the data representation format of the second computer system is received from the data decoding / encoding processing, the extended data conversion initialization remote procedure is executed according to the request, and the execution result is displayed. Data decoding A data conversion system in remote procedure call processing, which is provided with extended remote procedure acceptance processing including procedure call processing for returning to encoding processing. 6. A data conversion system in a remote procedure call process for calling a remote procedure set in another computer system connected to the same network from an arbitrary computer system connected to the network, wherein the arbitrary computer The system is an application program that calls a remote procedure set in the other computer system, and a computer system name and a representation format of data to be transmitted / received for each computer system connected to the network are the same as the own computer system. And an extended data conversion compatible host management table that holds a flag that is turned on and turned off when different, further accepts a request to call the remote procedure from the application program, and outputs the execution result of the remote procedure to the application. Remote procedure to return to the program Request reception processing, and whether or not the remote procedure call request is received from the remote procedure call reception processing and whether or not the other computer system in which the remote procedure exists is registered in the extended data conversion compatible host management table. If it is determined by the request-destination host determination processing to determine whether the other computer system is not registered in the extended data conversion compatible host management table by this request-destination host determination processing, the data of the other computer system In addition to requesting acquisition of information indicating whether the expression format is the same as the data expression format of the own computer system, when the information is received, the entry for the other computer system is added to the extended data conversion compatible host management table. To the extended data that sets the flag of the entry according to the information. The other computer system is registered in the extended data conversion compatible host management table by the conversion initialization process and the request destination host determination process, and the entry flag of the other computer system is ON in the table. If it is determined that the remote procedure call is directly requested without conversion, and if the information about the data representation format of the other computer system is received, the extended data conversion initialization process is performed without conversion. When the remote procedure execution result is received, the local data encoding / decoding processing of directly returning to the remote procedure call acceptance processing without conversion, and the other computer system by the request destination host determination processing Registered in the extended data conversion compatible host management table If it is determined that the entry flag of the other computer system is off in the table, the remote procedure call request is converted into a network standard data format, and the extended data conversion initial The request for acquiring the information about the data representation format of the other computer system received from the computerization process is converted into the network standard data format, and the network standard data format is received when the information about the data representation format of the other computer system is received. To a local data format and return it to the extended data conversion initialization process, and when the execution result of the remote procedure is received, the network standard data format is converted to a local data format for remote procedure call acceptance processing. Data encoding / decoding process to be returned And a request to acquire information regarding the data representation format of the other computer system received from the local data encoding / decoding process or the data encoding / decoding process, or a request to call the remote procedure to the other computer system. At the same time, the information about the data representation format of the other computer system received from the other computer system is returned to the data encoding / decoding process, and the execution result of the remote procedure received from the other computer system is expanded. When the flag of the entry of the other computer system in the data conversion compatible host management table is ON, the other host call processing is returned to the local data encoding / decoding processing, and when it is OFF, the other host calling processing is returned. Extended remote procedure request processing including, remote procedure, and an entry for the computer system included in this remote procedure and requesting this remote procedure is added to this extended data conversion compatible host management table, and the data representation of the computer system is added. It is determined whether the format is the same as that of the own computer system, and if the same, the flag of the entry is turned on, and if it is different, the extended data conversion initialization remote procedure is turned on. While receiving a request for acquisition of information regarding the data representation format of the own computer system or a request for calling the remote procedure from another host call processing, the information regarding the data representation format of the own computer system or the execution result of the remote procedure is sent to the other host Other host call acceptance process that returns to the call process, and other A request for acquisition of information regarding the data representation format of the local computer system or a request for calling the remote procedure is received from the call reception processing, and the other computer system that made the request is registered in the extended data conversion compatible host management table. Request source host determination processing for determining whether or not the other computer system is registered in the extended data conversion compatible host management table by the request source host determination processing, and the other computer system is registered in the table. If it is determined that the flag of the entry is ON, the remote procedure call is directly requested without conversion, and when the execution result of the remote procedure is received, the request source host is directly processed without conversion. Local data decoding / encoding process to be returned to judgment processing It is determined by the request source host determination process that the other computer system is registered in the extended data conversion compatible host management table and that the entry flag of the other computer system is off in the table. In this case, the remote procedure call request is converted from the network standard data format to the local data format, and the information acquisition request regarding the data representation format of the own computer system received from the request source host determination processing is received in the network standard data format. From the local data format to the local data format, and when the information about the data representation format of the computer system is received, it is converted from the local data format to the network standard data format and returned to the other host call acceptance processing, and further the remote procedure. Received the execution result of When the data is decoded, the local data format is converted into the network standard data format and returned to the other host call acceptance processing, and according to the remote procedure call request received from the local data decoding / encoding processing. The remote procedure is executed, the execution result is returned to the local data decoding / encoding processing, and when the remote procedure calling request is received from the data decoding / encoding processing, the remote procedure is executed according to the request. Then, when the execution result is returned to the data decoding / encoding process and a request for acquisition of information regarding the data representation format of the computer system is received from the data decoding / encoding process, the extended data conversion first is performed according to the request. Data conversion system in a remote procedure call process is characterized in that a extended remote procedure reception processing including of remote procedure is executed, the procedure call processing to return the execution result to the data decoding encoding.