JP2746770B2 - File processing method of optical disk verification system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the manufacture of an optical disk such as a CD-ROM used as a recording medium for packaged software, and it is required that an array of data to be written on the optical disk, a file structure, an application program, etc., be as designed. More particularly, the present invention relates to a file processing method of an application verification system for an optical disk that manages a file in relation to a simulation unit of an operation of an actual optical disk drive device.

[0002]

2. Description of the Related Art Conventionally, in a file processing system of this kind of application verification system, file management is performed such that a file is arranged in the same manner as a physical recording format of an optical disk, and a data read command from a system using an optical disk is used. The physical address data of the contained optical disk is converted into the address of the disk drive device of the simulation system by a simple four arithmetic operations so that the address can be accessed. Therefore, in the editing stage where the data amount of the file may change, an appropriate amount of recording area is secured before writing the file, and then the file is registered.

[0003]

In such a system, the user needs time and effort to secure an area for writing a file, and an empty area is generated everywhere in order to secure an extra area. There is a problem that the capacity, that is, the memory resource is wasted.

Further, when deleting a file or replacing data in accordance with a change in the design of an application, in the case of deleting a file, an empty area is created in the middle of a file arrangement image on an optical disk. As a result, the file located at the address after the deleted file is moved to the front and rearranged. Also, in the case of data replacement, when the amount of data is larger than the original file and it is not possible to write in the original area, the files located at addresses subsequent to that file must be sequentially shifted backward and rearranged. No. Therefore, the conventional method has a problem in that the amount of data handled by the optical disk is enormous, so that a very laborious and time-consuming operation is required.

Therefore, an object of the present invention is not to directly arrange the physical arrangement of an optical disc when recording a file, but to perform virtual arrangement to secure an area, delete a file, replace data, and the like. Minimizes time-consuming tasks such as creating free space and relocating files by editing files, making it easier for users to handle files, and shortening the application development period. An object of the present invention is to provide an optical disk application verification system that can perform the above.

[0006]

SUMMARY OF THE INVENTION Therefore, in order to achieve the above-mentioned object, the present invention provides an optical disk utilizing system which reads and uses application data recorded on an optical disk, and which is originally connected to the optical disk utilizing system. A simulation system that performs processing as an optical disk drive simulator that simulates the operation of the optical disk drive, and that manages data to be written to the optical disk as a continuous file, instead of the optical disk drive used. A disk drive device having a disk-shaped recording medium for recording data to be written to the optical disk connected thereto; By having an address conversion table for converting the address of the disk to the address of the optical disk drive, the optical disk utilization system can access the optical disk drive with the same command as the actual optical disk drive and verify the application. Is made possible.

[0007]

According to the present invention, the optical disk utilizing system accesses the disk drive of the simulation system with the same instruction system as the optical disk drive of the actual machine, thereby verifying the application before actually producing the optical disk. It is possible.

Further, it is possible to minimize the generation of free space and the relocation of files due to editing operations such as securing an area, deleting files, and replacing data when writing continuous files, and processing the files. It is.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a general configuration of an application verification system for an optical disk to which the method of the present invention is applied. One is a simulation system 1 in which a user inputs and edits data to be written on an optical disk, or controls a disk drive device connected to the system during application verification to simulate the operation of an optical disk. The optical disk drive includes an optical disk drive system 2 for executing an application and confirming whether the application operates as designed.

Here, an address conversion table 12 which is a feature of the present invention is placed in a work memory 11 in the simulation system 1 like a memory area M1 in FIG. In addition, a file management table for managing files to be registered in the disk drive device 8 is placed as in the memory area M2. Furthermore, when the management information for one file in each table is shown, the file management table M1
As shown in FIG. 3 (a), an optical disk sector address and sector length having exactly the same physical address information as an optical disk to be manufactured, and a pointer to file management information in the disk drive device of the file system. It has a certain file management table memory address.

On the other hand, the file management table M2 is shown in FIG.
As shown in FIG. 7, the file has a registered file name, an attribute indicating the type of data, a disk drive sector address having address information recorded in the disk drive device 8, and a sector length.

Now, the interrelationship between the address conversion table M1, the file management table M2, the file arrangement of the optical disk to be manufactured from now on, and the file arrangement of the disk drive will be described with reference to FIGS.

First, when the file F1 is to be registered, it is assumed that the system manages the file to be written from the beginning of the free area in the disk drive device. Then, the sector length BL1 in the disk drive of the system is calculated from the data amount of the file F1, the data is recorded in the disk drive, and B1, BL1 and the file name F1 are stored in the file management table.

At this time, the user or the system sets the write start address A1 on the optical disk, calculates the sector length AL1 on the optical disk from the data amount of the file and the physical sector length of the optical disk, and stores it in the file management table M2. The pointer to the management information of the file F1 (memory address of the file management table) is stored in the address conversion table M1.

Next, when an attempt is made to register F2, the file F1 is first obtained in the same manner as at first, the address B2 and the sector length BL2 of the disk drive are obtained, and the file management table M is obtained.
2 and then the physical address A on the optical disc
2. The sector length AL2 is obtained and stored in the address conversion table M1.

When files are sequentially registered in the same manner, the address conversion table M1 and the file management table M2 are shown in FIG. 4, the file arrangement state of the virtual optical disk is shown in FIG. 5, and the file arrangement state of the disk drive 8 is shown in FIG. As shown in FIG.

Here, the operation of each block will be described as follows, taking the data transfer of the file F1 as an example when verifying the application in the optical disk utilization system.

(1) Before the system using the optical disk executes the program, the physical address A1 of the optical disk and the sector length AL1 of the address conversion table M1 are predetermined in the work memory 13 of the processing device 4 of the system using the optical disk. The data is transferred to and stored in the optical disk address storage table 14 located in the area set.

(2) The optical disk utilization system uses the file address information A in the optical disk address storage table.
1 to create a data access command to the optical disk drive, and from the system interface 10 to the system interface 9 of the simulation system.
Then, the command is transferred by the same protocol as that of the actual optical disk drive.

(3) The simulation system extracts address information of the optical disk from the parameters of the disk access instruction received from the system interface 9, further searches the optical disk sector address items of the address conversion table M1 sequentially from the beginning, and executes the instruction. Is searched for an address that matches the address value A1 of.

(4) T1 is used from the file management table memory address item of the matched address conversion table, and this time, using the disk address B1 and sector length BL1 of the file management table designated by T1, An access instruction to the disk drive in which data is recorded is created, and the instruction is transferred to the disk drive via the disk drive interface 7.

(5) Upon receiving the command, the disk drive 8 reads the target data from the recording medium and sends the data to the optical disk utilization system via the disk drive interface 7 and the system interface 9.

(6) The optical disk utilization system reads data sent to the system interface 10 and stores it in the work memory 13.

The above is the operation of the optical disk utilizing system when reading the file F1. In this way, the optical disk utilization system can access files using exactly the same command as the actual optical disk drive, so that application verification can be performed without producing expensive and time-consuming optical disks. Becomes

Next, updating (re-registration) and deletion at the time of editing a file will be described. First, it is assumed that the file registration state is the same as that shown in FIGS. Here, conventionally, when the file F2 is deleted, the file F2 is conventionally deleted by invalidating information about the file F2 from the file management table, and the area of F2 in the disk drive becomes a free area in this state. Therefore, the files F3 and F4 after the file F2 must be sequentially moved to the area of the file F2. In the method of the present invention, each item A2, AL2, T of the file F2 is used as shown in FIG.
By deleting 2, there is no need to move the file as in the prior art. In FIG. 7B, however, it is necessary to calculate the address A, an item of the address conversion table, which is expressed by the following equation.

[0026]

(Equation 1)

The meaning of this equation is that the file F2 means that the data corresponding to the sector length AL2 has been lost, so that the files F3 and F4 arranged thereafter are arranged after the file F1. AL for
That is, two are subtracted from the addresses A3 and A4. This calculation is tens of thousands to hundreds of thousands of times faster in accessing the work memory than in accessing the disk drive in a normal system, so it is incomparable compared to the method of moving files in the disk drive The file deletion process can be performed at a higher speed.

Next, when the file F2 is updated and becomes larger than the original data amount and cannot fit in the original position of the disk drive, first, as shown in FIG. Obtain the address and record the updated data from there. Then, the address B2 'and the sector length BL2' are stored in the file management table, and the address conversion table performs the following calculation to update the file.

First, since the data amount of the file F2 has increased, its sector length AL2 'is obtained and stored in the item of the sector length of the file F2. Along with this, the addresses of the files F3 and F4 arranged after the file F2 are shifted rearward, and the addresses are obtained according to the following formula so as to be arranged properly after the file F2.

[0030]

(Equation 2)

In the above equation, the terms AL2 'and -AL2 represent the amount of data increase due to the update of the file F2, and this increase is added to the original addresses A3 and A4 of the files F3 and F4 after the file F2. Address A3 '
And A4 '.

As a result, when the data amount of the file being registered increases due to editing as in the prior art and the data cannot be completely written to the original position, the file arranged thereafter is moved backward to update the updated file. According to the method of the present invention, processing is performed in a time period equivalent to writing an update file and calculating address information of an address conversion table, without the need for time-consuming and time-consuming work of creating a recordable area and then recording. It becomes possible.

However, in the case of this method, the original position of the update file is an empty area, but if the processing is performed as a target of the recording area of the file to be registered subsequently, the waste can be minimized. . This empty area does not mean that nothing is recorded, but data before the update of the file F2 is recorded, so that the user can perform an undo process of updating the file (in this case, canceling the process of updating). It is also possible.

Finally, the process of replacing the file arrangement will be described with reference to FIG. Here, if the files F2 and F3 are exchanged, the file arrangement state of the virtual optical disk is as shown in FIG. 9B. In this case, the files F2 and F3 can be exchanged only by exchanging the items T2 and T3 of the file management table memory address of the address conversion table.

However, since the data amounts of the files F2 and F3 are usually different, it is necessary to recalculate the address A and the sector length AL of the file between the files F2 and F3. The calculation is expressed by the following equation.

[0036]

(Equation 3)

The equation (3) indicates that the file F
3, the start address A3 'of the file F2 is the sum of the address A2 and the sector length AL3 of the file F3. Equations (4) and (5) are then used for files F2 and F3.
Sector lengths AL2 and AL3 are AL3 'and AL, respectively.
2 ′.

As described above, the replacement of files in the present invention can be performed by a very simple and short process of only recalculating the address conversion table, and the process of physically replacing data as in the prior art is not required. No need at all.

[0039]

As described above, according to the present invention, the optical disk utilizing system accesses the disk drive of the simulation system by using the same instruction system as the optical disk drive of the actual machine, so that the optical disk can be produced before the optical disk is actually manufactured. It is possible to verify the application.

In addition, the generation of free space and the relocation of files due to editing operations such as area reservation, file deletion, and data replacement during continuous file writing are minimized, and files are processed.
It provides an environment where users can easily handle files, and reduces the time required for application development.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a general configuration of an optical disk application verification system according to an embodiment to which a method of the present invention is applied.

FIG. 2 is a diagram showing a map of a work memory in a simulation system that simulates an optical disk drive.

FIG. 3A shows a data structure of an optical disc;
FIG. 2B is a diagram showing a data configuration of a file management table having address information of files in the disk drive device and the like.

FIG. 4 is a diagram illustrating a file processing method according to the present embodiment using specific data for the contents of an address conversion table and a file management table.

FIG. 5 is a diagram showing an arrangement state of files on a virtual optical disk based on the data of FIG. 4;

FIG. 6 is a diagram showing a file arrangement state of a disk drive device in the simulation system based on the data of FIG. 4;

FIG. 7 is an explanatory diagram relating to file processing of the present invention.

FIG. 8 is a map diagram for explaining an address write state according to the present invention.

FIG. 9 is a diagram for explaining a file arrangement replacement process according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Simulation system 2 Optical disk utilization system 3 Simulation system processing unit 4 Optical disk utilization system processing unit 5 Input / output device which designates operation to the system in order for a user to input a file or edit a file 6 Input / output device for user verification of application 7 Interface with processing device 8 Disk drive device 9 for recording file 9, 10 System interface for exchanging data between simulation system and optical disk utilization system 11, 13 Each system 12 shows a work memory 12 address conversion table 14 an optical disk address storage table,
M2, M3 ... address conversion table, file management table, remaining work memory of the processing device F file and file name A optical disk address AL optical disk sector length T file management table memory address B disk drive sector address BL disk drive device sector length

Claims (1)

(57) [Claims] 1. An optical disk for reading and processing application data recorded on an optical disk in order to determine whether data to be recorded on the optical disk is accurate prior to manufacturing an optical disk used as a recording medium of package software. A system and a process as an optical disk drive simulator that simulates the operation of the optical disk drive instead of the optical disk drive originally used to be connected to the optical disk utilization system, and manages data to be written on the optical disk as a continuous file. And a disk drive device having a readable and writable rotary recording medium connected to the simulation system for recording data to be written on the optical disk. Registering data to be recorded on the optical disk as a file in the simulation system by having an address conversion table for converting an address on the optical disk into an address on the disk drive device in a work memory area of the simulation system. In doing so, the physical address information of the optical disk is stored in the address conversion table, the file is managed using the address information, and the system using the optical disk uses the same simulation system as the actual optical disk drive device with the same instruction. A file processing method for an optical disk verification system, characterized in that an application is accessed to verify an application.