JPS63133232A - System for generating task discrimination name - Google Patents

Abstract

PURPOSE:To eliminate the double allocation of task identification names which are produced when an electronic computer system is stopped and restored, by producing the task identification names based on the date and the time point set when a request is received for the production of the task identification names. CONSTITUTION:A task discrimination name production means 1 produces the task discrimination names based on the discrimination name of the task of a requester for the production of discrimination names acquired by an requester discrimination name acquiring means 2 as well as the date and the time point for the request of production of the task discrimination names which are acquired by a discrimination name production request acquiring means 3. Thus it is possible to avoid the double allocation of the task discrimination names even though a task and its discrimination name are newly produced by an electronic computer system when this system is stopped and restarted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for generating a task identifier, and particularly to a method for generating a task identifier in a computer system.

C. Prior Art Conventionally, in this type of task identification name generation method, a parent task (hereinafter referred to as task) generates child tasks (hereinafter referred to as tasks) and requests a task identification name generation means to generate an identification name for each task. The task identifier is generated based on the number of times the task (referred to as the identifier generation requesting task) generates a task (this number is equal to the number of times the task identifier generation requesting task requests the task identifier generation means to generate a task identifier). was being generated.

For example, when the identification name of the task that made the identification name generation request is A, the task that was first generated by the task that made the identification name generation request, and for which the task identification name generation means was first requested to generate a task identification name. The task identification name is A1.The task identification name of the task for which task identification name generation was requested second is A.
The task identification name was generated in the form of 2.

[Problem that the invention seeks to solve]

In the conventional task identification name generation method described above, if the computer system stops during the task generation process by the task that requested identification name generation, the number of task identification name generation requests is reset. The task that was previously generated by the task that requested identification name generation is suspended (by saving it to an external storage device and loading it when restarted, etc.), and then the same task that requested generation of identification name is restarted in the restarted computer system. When a new task is generated and a request is made to the task identification name generating means to generate a task identification name, there is a drawback that double assignment of the task identification name occurs.

To explain using the above example, three tasks AI, A2, and A3 are generated by task A that requested identification name generation (At
, A2, and A3 are generated by the task identifier generation means.) When the computer system stops, the task identifier of the first task generated by task A that requested the generation of an identifier after restarting is A1. Therefore, if the task A1 generated before the stop is suspended, the task identification name A1 will be assigned twice to two tasks with different contents.

In view of the above-mentioned points, an object of the present invention is to prevent a computer system from running when the computer system is stopped and restarted (assuming that tasks generated before the computer system is stopped are suspended). To provide a task identification name generation method that does not cause double assignment of a task identification name even when a new task and its task identification name are generated.

[Means for solving problems]

The task identification name generation method of the present invention includes a requester identification name/obtaining unit that obtains the identification name of the task that has requested identification name generation;
an identification name generation request acquisition means for acquiring the date and time when generation of a task identification name was requested; and an identification name of the task that requested the identification name generation, which was obtained by the requesting identification name acquisition means, and the identification name generation. and task identification name generation means for generating a task identification name based on the date and time at which generation of the task identification name was requested, which was obtained by the request time acquisition means.

[Effect]

In the task identification name generation method of the present invention, the request source identification name acquisition means acquires the identification name of the task that has requested identification name generation, and the identification name generation request time acquisition means includes the date and time when generation of the task identification name is requested. The task identification name generation means obtains the time, and the task identification name generation means generates the identification name obtained by the request source identification name acquisition means.The generation of the identification name of the requesting task and the task identification name obtained by the identification name generation request time acquisition means is requested. A task identifier is generated based on the date and time.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the task identification name generation method of the present invention. The task identification name generation method of this embodiment is based on the identification name of the identification name generation request source task (not shown) obtained by the request source identification name acquisition means 2 and the identification name obtained by the identification name generation request time acquisition means 3. Task identification name generation means 1 that generates a task identification name based on the date and time when generation of a task identification name is requested; and requestor identification name acquisition means 2 that obtains the identification name of the task that has requested identification name generation.
and an identification name generation request time acquisition means 3 for obtaining the date and time when generation of a task identification name was requested.

Referring to FIG. 2, the process of the task identification name generation method of this embodiment includes the task identification name generation request receiving step 11.
, an identification name generation request source task identification name acquisition step 12 , a task identification name generation request time acquisition step 13 , a task identification name generation step 14 , and a task identification name return step 15 .

Next, the operation of the task identification name generation method of this embodiment configured as described above will be explained.

When generating a task identification name for a task generated by a task that has requested identification name generation, first, a task identification name generation request from the task that has requested identification generation is accepted by the task identification name generation means 1 ( Step 11).

Based on the generation request accepted in step 11, the requester identification name acquisition means 2 receives instructions from the task identification name generation means 1.
In step 12, the identification name of the task that made the identification name generation request is acquired (step 12).

Further, based on the instruction from the task identifier generation means 1 based on the generation request accepted in step 11, the date and time when the generation of the task identifier was requested is recorded in the identifier generation request time acquisition means 3 by the operating system (Fig. (not shown) (step 13).

The identification name of the task that requested the generation of an identification name obtained in step 12 and the date and time at which generation of the task identification name was requested obtained in step 13 are the task identification name generation means 1
and a task identification name is generated based on these (for example, by arranging them in order) (step 14).
).

The task identification name generated in step 14 is returned to the task that requested identification name generation by the task identification name generation means 1 (
Step 15) is used later when a task needs to be identified.

Even if the computer system is stopped and restarted during the task identification name generation process described above, the element based on the date and time obtained by the identification name generation request time acquisition means 3 remains in the task identification name. Therefore, the same task identifier is never assigned to different tasks.

〔Effect of the invention〕

As explained above, the present invention provides information based on the date and time when generation of the task identifier is requested (by incorporating elements unrelated to the operation of the computer system into the task identifier to be generated). A new task and its task identification name are generated in the computer system when the computer system is stopped and restarted (tasks generated before the computer system was stopped are put on hold). This has the effect that double assignment of task identification names does not occur even if the task identifier is assigned.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a flowchart showing the processing of the task identification name generation method of this embodiment. In the figure, 1... task identification name generation means, 2... request source identification name acquisition means, 3... identification name generation request time acquisition means.

Claims (1)

[Scope of Claims] Requester identification name acquisition means for acquiring the identification name of the task that has requested identification name generation; and identification name generation request time acquisition means for acquiring the date and time when generation of the task identification name is requested; A task based on the identification name of the identification name generation requesting task obtained by the requesting identification name obtaining means and the date and time at which generation of a task identification name was requested obtained by the identification name generation request time obtaining means. 1. A task identification name generation method, comprising: task identification name generation means for generating an identification name.