JPH05334152A - Rapid access method for variable length message file - Google Patents

Abstract

PURPOSE:To reduce the size of a message file and to attain rapid access by automatically forming a variable length message file, a rapid message control file for retrieval, or the like and rapidly extracting a message while referring to those formed files at the time of outputting the message. CONSTITUTION:This rapid access method is provided with a variable length message file 2 for storing a variable length message and a fixed length rapid message control file 3 for storing control data for retrieving the variable length message stored in the file 2 and constituted so that the variable length message is stored in the file 2 corresponding to the input of the variable length message and control data (e.g. message size and an offset from the head) for retrieving the variable length message are stored in the file 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high speed access method for accessing a variable length message file at high speed.

[0002]

2. Description of the Related Art Conventionally, an operator inputs a command from a keyboard, and an application that receives the command starts the command. At this time, when an error occurs in the command, the command requests the display of a message.
In response to the request to display this message, the message corresponding to the number notified from the fixed length message file is extracted at high speed and displayed on the screen, for example, the message file cannot be found.

[0003]

As described above, conventionally, in order to access a message file at high speed and retrieve the message, the messages are sequentially stored in a fixed-length message file, and the corresponding message is retrieved at high speed by number. However, even if it is a small message, this part cannot be used effectively because it has a fixed length, and the file size becomes large, so the program size is limited because the program size is taken into consideration when developing. There was a problem.

The present invention solves these problems by
For the purpose of automatically creating variable-length message files and high-speed message control files for retrieval, referring to these at the time of output to extract messages at a high speed, reducing the size of the message file, and enabling high-speed access. There is.

[0005]

[Means for Solving the Problems] Means for solving the problems will be described with reference to FIG. In FIG. 1, a message file creation command 1 is for automatically creating a variable length message file 2, a high speed message control file 3 and the like.

The variable length message file 2 is a file for storing message data (message number and variable length message). The high-speed message control file 3 is a fixed-length file that stores control data for searching the variable-length message stored in the variable-length message file 2.

The message data high-speed extraction unit 10 refers to the high-speed message control file 3 and extracts a variable-length message from the variable-length message file 2 at high speed.

[0008]

According to the present invention, as shown in FIG. 1, the control data for storing the variable length message in the variable length message file 2 by the message file creation command 1 and searching the variable data ( For example, the size of the variable length message and the offset from the beginning) are stored in the high speed message control file 3.

Also, a plurality of variable length message files 2
In response to the merge instruction of, the message file creation command 1 refers to the high speed message control file 3 to retrieve the control data, and based on these control data, retrieves the message number from the variable length message file 2 and compares them. , When there is a match, select one (for example, one with a new update time) based on the information in the control data, and delete the others (control data and message data are deleted). Deleted) and then merge.

Further, in response to a message retrieval request, the message data high-speed retrieval unit 10 retrieves control data from the position of the corresponding fixed-length number in the high-speed message control file 3, and based on this control data, the variable The variable length message at the corresponding position is extracted from the beginning of the long message file 2 and output.

Therefore, the variable-length message file 2 and the high-speed message control file 3 are automatically created, and the variable-length message is extracted at high speed by referring to them at the time of output, thereby eliminating the waste of the message file and reducing the size. It becomes possible to take out a variable length message at high speed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the construction and operation of an embodiment of the present invention will be sequentially described in detail with reference to FIGS.

FIG. 1 shows a block diagram of an embodiment of the present invention.
FIG. 1A shows a block diagram when a file is created. This corresponds to the operator inputting a message number, variable length message, or specifying a plurality of variable length message files 2 to be merged.
FIG. 4 is a configuration diagram for automatically creating or merging the variable length message file 2, the high speed message control file 3, and the message include file 4, and is a process corresponding to the operation of a developer of a normal maker. ..

In FIG. 1 (a), the message file creation command 1 stores message data (message number and variable length message) in a variable length message in response to the developer inputting a message number and a variable length message. In addition to packing and storing in file 2, control data of fixed length consisting of the start address, message data size and update time at this time is stored in high speed message control file 3 or multiple variable length message files 2 are merged. It is something to do.

The variable length message file 2 is a file in which message data (message number and variable length message) are packed and stored. For example, as shown in the figure, it is a file that stores message data that the P0001 file cannot be found.

The high-speed message control file 3 is for extracting corresponding message data from the variable-length message file 2 at high speed, and is a file in which fixed-length control data is packed and stored. Here, the fixed-length control data is, for example, as shown in FIG. 2B: -the size of the message data (the number of bytes) -the offset from the beginning of the variable-length message file 2-the update time of updating the message data And so on. Since this control data has a fixed length, it can be stored in the high-speed message control file 3 from the beginning, and the control data can be quickly retrieved from the position corresponding to the order (number) from the beginning at the time of retrieval.

The message include file 4 is a collection of message numbers, sequentially assigned numbers, variable length messages, and others, which are convenient for compiling. At the time of compilation, the message include file 4 and the source of each command are compiled together into an object, and a load module is generated together with other objects.

FIG. 1B shows a block diagram when a message is fetched. This is because the operator operates the keyboard 6 on the display 5 to issue commands to the application 7
When the command 8 is input, the command 8 is tried to be started (executed), and when the file is not found, the variable length message file 2
3 is a configuration diagram when the message data is extracted with reference to the high-speed message control file 3 (these are actually compiled into load modules, but schematically shown here) and displayed on the display 5. ..

In FIG. 1B, the display 5
Is for displaying various menus and data and performing processing while talking. The keyboard 6 is used to input various data and commands.

The application (application program) 7 is an application program that performs various processes in response to commands input from the keyboard 6.
Command 8 is a command activated on the application.

The message output unit 9 instructs the message data high-speed extraction unit 10 to take out the message data in response to the message data output request from the command 8.

The message data high-speed extraction section 10 extracts corresponding message data from the variable-length message file 2 at high speed based on the control data extracted from the high-speed message control file 3.

The DOS 11 is an operating system and controls the entire system. Next, FIG.
The variable length message file 2, the high speed message control file 3, and the message include file 4 will be described with reference to FIG.

FIG. 2A shows an example of the format of a variable length message file. This is a variable length message: ・ P0001 file cannot be found.

-The format of the P0002 file is incorrect. -Delete the P0003 file. It is packed and stored. For example, P00 in the figure
When extracting the 03 message data, O from the beginning
The range to be taken out is determined by F (offset) and LL (size) of the message data. The OF (offset) and LL (size) are set in the fixed-length control data of the high-speed message control file 3 in FIG.

FIG. 2B shows a format example of the high speed message control file. This is the control data for extracting the message data from the variable length message file 2. LL: Message data size (number of bytes) OF: Offset from the beginning of variable length message file 2 TIME: Update message data The fixed-length data such as the updated time is stored in the high-speed message control file 3. Since the length is fixed, the control data at the corresponding position can be extracted at high speed from the beginning in response to the notification of the order (number). Then, based on the extracted control data, it is possible to quickly extract message data of size (length) LL from the beginning of the variable-length message file 2 starting from the position of the offset OF.

FIG. 2C shows a format example of the message include file. This is a compilation of message data in a format that is easy to compile. Next, the operation of the configuration of FIG. 1A will be described in detail with reference to FIG.

In FIG. 3, at (1), the developer gives an instruction to create a variable length message. For this, the developer issues, for example, a CRTMSG command (creation) -message number P0002-variable length message. Upon receiving this, the message file creation command 1 in FIG. 1A creates the following file from the message number and the variable length message.

Variable-length message file-High-speed message control file-Message include file Here, detailed description will be given in the order of ,,, in (a) of FIG.

In FIG. 1A, the developer inputs a message number and a variable length message, and instructs the file creation. Sets the size of the message data, the offset from the beginning of the variable length message file 2, and the update time to the fixed length control data to be stored in the high speed message control file 3 of FIG. 2B. The high-speed message control file 3 is packed and stored.

Is a message number (for example, P000)
2) and the variable length message (for example, “file format is wrong”) are packed and stored as shown in the variable length message file 2 of FIG.

The message data is added to the message include file 4. As a result, the message file creation command 1 is faster in response to the developer instructing the file creation by inputting the message number (eg P0002) and variable length message (eg “file format is wrong”) The message control file 3, the variable length message file 2, and the message include file 4 are shown in FIG.
It is automatically created as shown in (a) and (c).

Next, in FIG. 3, at (2), the developer instructs to merge a plurality of variable length message files 2. It issues multiple variable length message files that the developer can merge, eg CRTMSG command (merge). Upon receiving this, the message file creation command 1 of FIG. 1A compares the message numbers of the variable length message file 2 and creates the following merged files. In the case of the same message number, a new one from the TIME of the high speed message control file 3 is used.

Variable-length message file-High-speed message control file-Message include file Here, detailed description will be given in the order of ,,, in (a) of FIG.

In FIG. 1A, the developer designates a plurality of variable length message files 2 to be merged and instructs the merge. Retrieves the corresponding control data from the respective high speed message control files 3 of FIG.

On the basis of the control data taken out in step 1, the message number is extracted from the variable length message file 2 and compared. If there is a match, the new update time in the control data is left here. , Delete others (delete both message data and control data) and merge the rest together.

Similarly, the corresponding one is deleted from the message include file 4 and the remaining ones are merged together. As described above, the message file creation command 1 corresponds to the high speed message control file 3, the variable length message file 2, and the message include file 4 in response to the developer designating a plurality of variable length message files 2 and instructing the merge. For example, among the duplicate message numbers, the one having a new update time is automatically retained and the other ones are deleted, and merged together. As a result, the developer individually creates the variable-length message file 2, the high-speed message control file 3, and the message include file 4, and at the stage of compiling, merges and deletes duplicate message numbers. Then, the variable length message file 2, the high speed message control file 3 and the message include file 4 which are integrated can be automatically created.

Next, the operation of the configuration shown in FIG. 1B will be described in detail with reference to FIG. This is an operation explanatory diagram when the user gives a command execution command and, in response to an error occurrence or the like, extracts and displays a variable length message based on the error occurrence number.

In FIG. 4, in S1, the user causes the application 7 to execute a command. In FIG. 1B, the user inputs a command from the keyboard 6,
The application 7 is caused to execute the command ((b) in FIG. 1).

In S2, an error occurs during command execution, the message number is passed, and the message output unit 9 is requested to output the message ((b) in FIG. 1). S3 is
The message output unit 9 requests the message data high-speed extraction unit 3 to take out the message data ((b) of FIG. 1).

S4 is the message data high-speed extraction section 1
0 retrieves the corresponding control data of the high speed message control file 3 ((b) of FIG. 1). In S5, the message data is extracted from the variable length message file 2 ((b) of FIG. 1).

In S6, a message is output (screen display) ((b) in FIG. 1). For example, the display indicates that the format of the P0002 file is incorrect.

As described above, the user inputs and executes a command, and when an error occurs, the control data at the corresponding position from the beginning of the high speed message control file 3 is speeded up based on the message number corresponding to the error occurrence. The message data is taken out, the message data is taken out from the variable length message file 2 at high speed based on the offset and size in the control data, and the taken message data is displayed.

FIG. 5 is an explanatory diagram of the message include file of the present invention. The message include file 4 is arranged as shown in FIG. 2C so as to be easily compiled. As shown in the figure, the message include file 4 is compiled with the source (C language) of each command to generate an object. A load module is created by combining these compiled multiple objects. Then, using this load module, as described in FIG. 4 above,
When the user instructs the application 7 to execute a command, in response to the error occurrence, this instruction is given from the beginning of the message include file of FIG. 2C based on the message number corresponding to the error occurrence. The control data of fixed length is taken out from the position of the message number, and based on this control data, the corresponding message data (eg "P0002 file format is wrong") from variable length message file 2 is displayed on the display 5. , Notify the user of the content of the error in an easy-to-understand manner.

[0045]

As described above, according to the present invention,
Since the variable length message file 2 and the high-speed message control file 3 are automatically created and the message is referred to at the time of output to extract the message at high speed, the message file can be eliminated and the size can be reduced. At the same time, the message data (message number and variable length message) can be extracted and displayed at high speed. With these, (1) By making the variable length message file 2, the size of the message file can be reduced and the access to the message file can be speeded up.

(2) The following effects are produced by creating the message file creation command 1. (2-1) The variable length message file 2 can be automatically created.

(2-2) The high speed message control file 3 can be automatically created. (2-3) The message include file 4 for each command can be automatically created.

(2-4) Variable length message file 2
And the variable length message file 2 can be easily merged.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an example of a file of the present invention.

FIG. 3 is an operation explanatory diagram of a message file creation command of the present invention.

FIG. 4 is an operation explanatory diagram of a message output process of the present invention.

FIG. 5 is an explanatory diagram of a message include file of the present invention.

[Explanation of symbols]

 1: Message file creation command 2: Variable length message file 3: High-speed message control file 4: Message include file 5: Display 6: Keyboard 7: Application (program) 8: Command 9: Message output unit 10: High-speed message data extraction unit 11: DOS

Claims (3)

[Claims] 1. A high-speed access method for accessing a variable-length message file at high speed, wherein a variable-length message file (2) storing a variable-length message and a variable-length message stored in this variable-length message file (2) are searched. And a fixed-length high-speed message control file (3) for storing control data to store the variable-length message corresponding to the input of the variable-length message and storing the variable-length message in the variable-length message file (2). A high-speed access method for a variable-length message file, characterized in that the control data (eg, message size, offset from the beginning) to be stored is stored in the high-speed message control file (3). 2. A high-speed access method for accessing a variable-length message file at high speed, comprising a variable-length message file (2) for storing message data (message number and variable-length message) and a variable-length message file (2). A fixed-length high-speed message control file (3) for storing control data for searching the stored variable-length message is provided, and the high-speed message control file (3) is provided corresponding to a merge instruction of a plurality of variable-length message files (2). The control data is extracted by referring to each of 3), and the message number is extracted from the variable length message file (2) based on the control data and compared. If there is a match, the information in the control data Select any one (for example, one with a new update time) based on Delete an object and (delete control data and message data),
A high-speed access method for variable-length message files, which is configured to be merged. 3. A high-speed access method for accessing a variable-length message file at high speed, wherein a variable-length message file (2) storing a variable-length message and a variable-length message stored in this variable-length message file (1) are searched. And a fixed-length high-speed message control file (3) for storing control data to be stored, and the control data is sent from the fixed-length corresponding sequence position of the high-speed message control file (3) in response to a message retrieval request. Take out, based on this control data,
A high-speed access method for a variable-length message file, characterized in that a variable-length message at a corresponding position is extracted from the head of the variable-length message file (2) and output.