JPH04320557A - Network application library - Google Patents

Abstract

PURPOSE:To provide a network application library capable of easily and quickly exchanging data between plural systems respectively having different code systems. CONSTITUTION:In the case of transmitting/receiving data between a calculation system 1 for expressing data by the 1st code system and a file server 2 for expressing data by the 2nd code system, the code conversion of the data is executed. The computer system 1 is provided with a transmitting/receiving data forming function 12-1, a data transmitting function 12-2, a data receiving function 12-3, and a code converting function 13-1 and the function 12-1 can start up the function 13-1. An application program 11 in the system 1 automatically executes the code conversion of data by using the respective functions at the time of transmitting/receiving data.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network application library for facilitating data exchange between a plurality of systems each having a different code system.

0002

[Background Art] In recent years, data has been frequently exchanged between multiple systems, but each system does not necessarily use the same code system, and two systems use different code systems. When data is exchanged, at least one system must perform code conversion. For example, if the first system uses a coding system called UC code, and the second system uses a coding system called EUC code, then from the first system to the second system. When sending and receiving data, code conversion from UC code to EUC code must be performed, and conversely, when sending and receiving data from the second system to the first system, EUC code must be converted.
Code conversion from code to UC code must be performed.

[0003] However, in conventional systems, when exchanging data, the user calls up a program to convert the data code system and performs the conversion process one by one, which forces the user to perform complicated operations each time data is exchanged. was. Additionally, the user may create an application program that automatically converts the code system when exchanging data, but the system does not have a library prepared for creating such an application program. Application programs have become extremely complex (“Xerox Sys
``The X'' published by ``The X
NS for UNIX V. 3 Programmi
ng Guide).

0004

[Problem to be Solved by the Invention] In this way, in conventional systems, when data is to be exchanged with another system with a different encoding system, the user has to convert the encoding system one by one. Complicated operations must be performed each time data is exchanged, and this hinders prompt data exchange. In addition, if the user creates an application program that automatically converts the coding system when exchanging data, it may be extremely difficult to create an application program because the system does not have a library prepared for the creation of such an application program. had to create complex application programs.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a network application library that allows data to be easily and quickly exchanged between a plurality of systems each having a different code system.

[0006]

[Means for Solving the Problems] In the present invention, mutual conversion between a first code system and a second code system is performed by a conversion means, and the first instruction means is a system having the first code system. When transmitting transmission data from the first encoding system to a system having a second encoding system, an instruction to convert the transmission data from the first encoding system to the second encoding system is given to the conversion means, and the second instruction means When receiving data from a system having a second code system is received by a system having a first code system, an instruction is given to the converting means to convert the received data from the second code system to the first code system. That's what I do.

[0007]

[Operation] According to the present invention, in response to an instruction by the first instruction means, transmission data from a system having a first code system to a system having a second code system is transmitted from a system having a first code system to a system having a second code system. 2, and in response to an instruction by the second indicating means, received data from the system having the second encoding system to the system having the first encoding system is converted from the second encoding system to the second encoding system. 1 code system. Therefore, the user on the first system side does not need to be involved in code system conversion processing when exchanging data with the second system.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a functional block diagram showing a schematic configuration of a computer system to which an embodiment of the network application library according to the present invention is applied. This computer system 1 exchanges data with a file server 2. be able to. In the figure, computer system 1
includes an application program 11, a network application library 12, and a code conversion library 13.

The network application library 12 includes a sending/receiving data creation function 12-1, a data sending function 12-2, and a data receiving function 12-3, and these functions can be activated from the application program 11. can.

The code conversion library 13 includes a code conversion function 13-1, and this function can be activated from the transmission/reception data creation function 12-1.

The computer system 1 represents and handles data using the first code system. Further, the file server 2 handles data by expressing it in the second code system. Therefore, when transmitting and receiving data between the computer system 1 and the file server 2, it is necessary to convert the code of the data. When the computer system 1 receives data from the file server 2, the second encoding system must be converted to the first encoding system. FIG. 2 shows the processing procedure performed by the computer system 1 when transmitting data from the computer system 1 to the file server 2.

First, here, the inter-network data transmission program 11 is used as the application program 11.
-1 is created by the user. This inter-network data transmission program 11-1 has a predetermined transmission data creation function senddata (
) and the sending function send( ) are built in. The transmission data creation function senddata() corresponds to the transmission and reception data creation function 12-1 in the application library 12, and starts this transmission and reception data creation function 12-1. In addition, the send data creation function senddata ( )
contains a code conversion function AtoB ( ) for transmission data, and this transmission data code conversion function AtoB
() corresponds to the code conversion function 13-1 in the code conversion library 13, and this code conversion function 13-1
This activates the conversion function from the first code system to the second code system. On the other hand, the sending function send
() corresponds to the data transmission function 12-2 in the application library 12, and this data transmission function 1
2-2.

Suppose now that transmission data A expressed in the first code system is created in the computer system 1, and the inter-network data transmission program 11-1 is started to transmit this transmission data A to the file server 2. Then, the inter-network data transmission program 11-1
incorporates the transmission data A into the transmission data creation function senddata( ), thereby forming the transmission data creation function senddata (A). This transmission data creation function senddata (A) is from the inter-network data transmission program 11-1 to the transmission/reception data creation function 1 in the application library 12.
Start 2-1. Subsequently, the send data creation function senddata (A) calls the send data code conversion function AtoB (A), and this send data code conversion function AtoB (A) is the code conversion function 13-1 in the code conversion library 13. Start. Note that this transmission data code conversion function AtoB (
A) includes transmission data A.

The code conversion function AtoB (A) for transmission data in the code conversion function 13-1 is the conversion function A to B (A).
The transmission data A included in toB (A) is converted from the first code system to the second code system, thereby forming the transmission data B expressed in the second code system. This transmission data B is delivered from the code conversion function 13-1 to the inter-network data transmission program 11-1 via the transmission/reception data creation function 12-1.

[0016] Inter-network data transmission program 11
When -1 receives transmission data B, it incorporates this transmission data B into the transmission function send ( ), thereby creating the transmission function send (B). This sending function se
nd (B) activates the data transmission function 12-2. This sending function send (B) sends the sending data B incorporated in the sending function send (B) to the file server 2 according to a predetermined communication procedure.

In this way, the send data creation function send
data ( ) contains the code conversion function At for transmission data.
oB ( ) is included, and the sending/receiving data creation function 12-1 is a sending data creation function senddata (
), the transmission data code conversion function AtoB ( ) of the code conversion function 13-1 is activated, thereby specifying conversion from the first code system to the second code system. Therefore, the sending data creation function sendd
By simply calling ata( ), transmission data A in the first encoding system can be converted to transmission data B in the second encoding system. And the sending function send( )
By calling , the transmission data B of the second code system can be transmitted from the computer system 1 to the file server 2. Therefore, the inter-network data transmission program 11- as an application program
1 can be realized with a simple configuration by incorporating the send data creation function senddata() and the sending function send().

Next, referring to FIG. 3, the file server 2
The processing procedure performed when the computer system 1 receives data from the computer will be described.

[0019] Here, application program 11
It is assumed that the inter-network data reception program 11-2 has been created by the user. This inter-network data reception program 11-2 has a predetermined reception data creation function recievedata (
) and a receive function receive( ). Receive data creation function recievedata
() calls the transmission/reception data creation function 12-1 in the application library 12. In addition, the reception data creation function recievedata(
) includes a received data code conversion function BtoA ( ), and this received data code conversion function Bto
A () corresponds to the code conversion function 13-1 in the code conversion library 13, and this code conversion function 13
-1 starts the conversion function from the second code system to the first code system. On the other hand, the reception function re
cieve() calls the data receiving function 12-3 in the application library 12.

Now, suppose that the inter-network data receiving program 11-2 is started in order for the computer system 1 to receive the received data B of the second code system from the file server 2. starts the data reception function 12-3 by the reception function receive( ). Data reception function 12-
3 receives the reception data B of the second code system from the file server 2 according to a predetermined communication procedure using the reception function receive( ). Then, the data reception function 12-3 receives the reception data B using the reception function receive(
), which allows the receive function receive(
B) Create. This receive function receive(B)
starts the data reception function 12-3.

[0021] Inter-network data reception program 11
-2 obtains received data B from the reception function receive(B), incorporates this received data B into the reception data creation function recievedata( ), and thereby creates the reception data creation function recievedata(B).
form. This received data creation function receive
data(B) starts the transmission/reception data creation function 12-1 from the inter-network data reception program 11-2. This received data creation function recievedat
a(B) is the received data code conversion function BtoA (
B) Call the code conversion function Bt for this received data.
oA (B) activates the code conversion function 13-1. Note that this received data code conversion function BtoA (B
) contains received data B.

The received data code conversion function BtoA (B) in the code conversion function 13-1 is the conversion function Bto
The received data B included in A (B) is converted from the second code system to the first code system, thereby forming received data A expressed in the first code system. This received data A is delivered from the code conversion function 13-1 to the inter-network data reception program 11-2 via the transmission/reception data creation function 12-1.

[0023] Inter-network data reception program 11
-2 receives received data A, for example, receives received data A.
is stored in a memory (not shown) within the computer system.

In this way, the reception data creation function reci
evedata() includes a received data code conversion function BtoA(), and the transmission/reception data creation function 12-1 calls the received data code conversion function BtoA() of the code conversion function 13-1. Specifies conversion from the second coding system to the first coding system. Further, by calling the reception function receive( ), the computer system 1 can receive the reception data B from the file server 2. Therefore, the inter-network data reception program 11-2 uses the reception data creation function recievedata ( ).
By incorporating the reception function receive( ), the configuration can be simplified.

As described above, in this embodiment, the transmitting/receiving data creation function 12-1, the data transmitting function 12-2, the data receiving function 12-3, and the code converting function 13-1 are provided as a library, and the code converting function 13-1 Since these functions are activated by the sending/receiving data creation function 12-1, an application program for using these functions can have a simple configuration. Furthermore, if data is sent and received according to this application program, the code system of the data is automatically converted, so the user is freed from the process of converting the code system.

[0026]

As explained above, according to the present invention, there is provided a conversion means for mutually converting between a first code system and a second code system, and a conversion means for mutually converting transmission data from the first code system to the second code system. a first instruction means for giving an instruction to the conversion means to convert the received data from the second code system to the first code system; and a second instruction means for giving the conversion means an instruction to convert the received data from the second code system to the first code system. The present invention provides a network application library with means for easily and quickly exchanging data between multiple systems each having a different code system.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing a schematic configuration of a computer system to which an embodiment of a network application library according to the present invention is applied.

FIG. 2 is a diagram showing a processing procedure when transmitting data from the computer system shown in FIG. 1.

FIG. 3 is a diagram showing a processing procedure when data is received by the computer system shown in FIG. 1.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1...Computer system, 2...File server, 11...Application program, 12...Network application library, 12-1...Data creation function for transmission and reception, 12-2...Data transmission function, 12-3...Data reception function, 13...Code Conversion library, 13-1...Code conversion function.

Claims (1)

[Claims] 1. In a network application library used when exchanging data between a plurality of systems each having different code systems, conversion means for mutually converting between a first code system and a second code system; a first instruction means for giving an instruction to the conversion means to convert from the first code system to the second code system with respect to transmission data from the first code system to the second code system; and second instruction means for giving an instruction to the converting means to convert the received data from the second code system to the first code system with respect to the received data from the second code system to the first code system. A network application library featuring: