JPH0293951A - File allocation control system - Google Patents

Abstract

PURPOSE:To easily schedule a job by retrieving file allocating information in an allocating information table when an inquiry is generated from a console by a user other than a user process executing allocating processing and displaying the retrieved result to an output device. CONSTITUTION:When a user process outputs a file allocation request for files in a storage device to a file allocation processing part, an allocation information processing part registers file allocating information consisting of the file name of a file, the job name of a user program outputting a file allocation request and the terminal identifier of a terminal if the file allocation request is outputted from the terminal in an allocation information table. The allocating information processing part retrieves the allocating information table and outputs the file allocating information to an optional output device. Thus, job scheduling can be easily executed by referring the file allocating information in the allocating information table.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a file allocation management method in a computer system in which jobs of a plurality of user processes allocate a plurality of files completely stored on a storage device.

(Prior Art) Conventionally, in file allocation management methods for file allocation processing, only the identifier for identifying whether it is read allocation processing or write allocation processing and the number of processes that are allocating files are managed. was.

(Problem to be Solved by the Invention) In the conventional file allocation management method described above, when a user process of a user other than the user process that performed the allocation process attempts to allocate a specific file that has already been allocated, Since the file was already allocated, a user attempting to allocate a particular file was placed in a resource waiting state. At this time, in the conventional file allocation method, the relationship between file resources and job names is not made clear. It has the disadvantage that it is not possible to make decisions such as forcibly terminating the user processes being used, and it is not easy to schedule jobs.

The present invention aims to solve the above-mentioned drawbacks, and aims to provide a file allocation management method that can easily perform job scheduling by referring to file resources and file allocation information such as job names. .

(Means for Solving the Problem) The above problem is solved, as shown in FIG. When a specific job of a user process accesses a specific file on the storage device, file allocation processing and file allocation processing are performed for the specific file, and the file name and file allocation request of the specific file are a file allocation unit that transmits file allocation information consisting of a job name issuing a file allocation request and a terminal identifier for identifying the terminal when a file allocation request is made from the terminal;
an allocation information table for storing the file allocation information; and a register for registering the file allocation information in the allocation information table during the file allocation process, and for deleting the file allocation information from the information table during the file allocation release process; , an allocation information processing unit that searches the file allocation information in the allocation information table and displays the result on an output device when an inquiry is received via a console from a user other than the user who performed the allocation process. It can be solved.

(Operation) When a user process issues a file allocation request for a file on the storage device to the file allocation processing unit, the allocation information processing unit issues the file name of the file and the file allocation request to the allocation information table. Register file allocation information consisting of the job name of the user process currently running, and the terminal identifier of the terminal if a file allocation request is issued from the terminal.

On the other hand, when the user process issues a file allocation release request for a file on the storage device to the file allocation processing unit, the allocation processing unit deletes the file allocation information from the allocation information table.

When the operator inquires about file allocation information from the console, the allocation information processing section searches the allocation information table and outputs the file allocation information to an arbitrary output device.

As described above, according to the present invention, job scheduling can be easily performed by referring to the file allocation information on the allocation information table.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing this embodiment. In the figure, 1 is an allocation information processing unit, 2 is an allocation information table, and 3 is an allocation information processing unit.
4 is a file allocation processing unit, 4 is a user process, 5 is a console output device, 6 is an output device, 7 is a disk device constituting the storage device of the present invention, and 8 is a file on the disk device.

FIG. 2 will be explained below. When a certain user issues a request to access the file 8 on the disk device 7 via a terminal, the user process 41 defined corresponding to the terminal issues a file allocation request to the file damage processing unit 3, and the file At the same time that the allocation unit 31 performs file allocation, the allocation information registration unit 12 of the allocation information processing unit 1
The allocation information registration unit 12 passes the file allocation information of the job name, the file name of the file 8 on the disk device 7, and the terminal identifier of the terminal to the allocation information table 2.
The name of the job issuing the file allocation request is registered in the job name table 21 in the job name table 21, and the terminal identifier is registered in the terminal identifier table 22.

Further, when the user process 41 is the first to allocate the file 8, the user process 41 registers the file name in the file name table 23.

Here, when a user other than the above-mentioned user issues a request to access the file 8 on the disk device 7 via the terminal, the user process 42 defined corresponding to the terminal sends the file allocation request to the file allocation processing unit 3. Then, the file allocation unit 31 attempts to perform file allocation processing. However, since the file 8 has already been allocated by the preceding user process 41, the file resource waiting state is entered, and the processing of the user process 42 is forced to wait. At this time, the operator of the user who issued the access request for file 8 can input the file name of file 8 from console 5 and inquire about file allocation information. Then, the allocation information search and display unit 11 searches the allocation information table 2 based on the file name, and as a result of the search, the user process 4 is searched from the job name table 21.
1 job name, terminal identifiers are obtained from the terminal identifier table 22, and output together with the file name onto the line printer 61 or magnetic tape 62.

On the other hand, user process 4 that performed the allocation process for file 8
1, the file allocation release unit 32 releases the allocation of the file 8, and at the same time sends the job name and the file name of the file 8 on the disk device 7 to the allocation information deletion unit 13 of the allocation information processing unit 1. , 1 Allocation information deletion unit 1 that passes file allocation information with the terminal identifier of the terminal
3, job name table 21 of assignment information table 2
The job name of the user process 41 and the terminal identifier from the terminal identifier table 22 are respectively deleted. Further, if there is no job to which the file 8 is allocated other than the user process 41, the file name is deleted from the file name table 23.

FIG. 3 shows the allocation information processing section 1 and the allocation information table 2.
2 is a schematic flowchart showing the processing of FIG. FIG. 3 will be explained below.

First, it is determined whether the request to the allocation information processing unit 1 is an allocation information display request from the console 5 (Sl)
, and if it is an allocation information display request, search the allocation information table 2 using the input file name as a key and obtain the file allocation information of the job name and terminal identifier (Sit), optional. Output on the output device (S1
2). The above processing is performed by the allocation information search and display unit 11 of the allocation information processing unit 1.

If it is not an allocation information display request, it is determined whether it is a file allocation processing request (S2), and if it is a file allocation processing request, the job name issuing the file allocation request is It is registered in the name table 21 (S21).

It also determines whether this user process is a file allocation request from a terminal (S22), and if it is a file allocation request from a terminal, registers the terminal identifier in the terminal identifier table 22 (S23). Current Fa,
The allocation information processing unit determines whether or not this is the first allocation to the file (S24), and if it is the first allocation, the allocation information processing unit registers the file name in the file\file name table 23 (S25). This is performed by the allocation information registration unit 12 of No. 1.

In determining whether it is a file allocation processing request (S2), if it is not a file allocation processing request, it is determined whether it is a file allocation processing request (S3). The job name issuing the allocation release request is deleted from the job name table 21 (S31). Also, it is determined whether this user process is a file allocation release request from a terminal (S32), and if it is a file allocation release request from a terminal, the terminal identifier is stored in the terminal identifier table 2.
2 (S33), and furthermore, it is determined whether this is the last allocation release process for the current file (S34).
), and if this is the final allocation release process, delete the file name from the file name table 23 (S35).
The allocation information deletion unit 13 of the allocation information processing unit 1 performs zero or more processes.

Note that in this embodiment, the terminal identifier of the terminal is registered/deleted as file allocation information, but if the user process 4 requests file allocation from a source other than the terminal, registration of the terminal identifier is not necessary. .

(Effects of the Invention) As explained above, in the file allocation management method of the present invention, when a user is in a state of waiting for a file resource during file allocation processing, the file can be allocated immediately by making an inquiry from the console. You can know the job name and the terminal identifier of the terminal that executed the job. As a result, it becomes possible for the operator to predict the end time of the job and determine whether to forcibly terminate the user process, thereby facilitating job scheduling.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of the present invention, Fig. 2 is a block diagram showing an embodiment of the invention, and Fig. 3 shows an overview of the allocation information processing means and the processing of the allocation information table in this embodiment. It is a flowchart. DESCRIPTION OF SYMBOLS 1... Allocation information processing unit, 2... Allocation information table, 3... File allocation processing unit, 4... User process, 5... Console, 6... Output device, 7.
... Disk device, 8... File, 11... Allocation information search display section, 12... Allocation information registration section, 13
... Allocation information deletion unit, 21... Job name table, 22... Terminal identifier table, 23... File name table, 31... File allocation unit, 32...
File deallocation section.

Claims (1)

[Claims] In a computer system in which jobs of multiple user processes allocate multiple files stored on a storage device, when a specific job of the user process accesses a specific file on the storage device, While performing file allocation processing and file allocation processing for a file, the file name of the specific file, the job name issuing the file allocation request, and the terminal identifier for identifying the terminal when the file allocation request is made from the terminal. an allocation information table that stores the file allocation information; and a file allocation unit that registers the file allocation information in the allocation information table during the file allocation processing, and registers the file allocation information in the allocation information table during the file allocation processing, and the file allocation release processing. At times, the file allocation information is deleted from the information table, and at the same time, when an inquiry is received via the console from a user other than the user process that performed the allocation process, the file allocation information is searched for from the allocation information table and the results are output to the output device. 1. A file allocation management method comprising: an allocation information processing section for displaying information on a file.