JPS6246346A - Common resource controlling and processing system - Google Patents

Abstract

PURPOSE:To considerably reduce the number of processing times segmenting a common resource by permitting an area control mechanism to segment and to control a group area from the common resource in correspondence to the area acquisition request of a request source. CONSTITUTION:When a request source 1 issues a request of area acquisition to acquire an area corresponding to the prescribed number of unit areas, an area control mechanism 3 investigates the number of thinned areas corresponding to an idle space in a group area 4 having been segmented from a common resource 2. If said number is insufficient, the area control mechanism 3 newly segments the group area 4 from the common resource 2, and lends one or plural thinned areas in the group area 4 segmented out of the common resource 2 to the request source by the requested areas. The way that the mechanism 3 lends the thinned areas to the request source 1 and said source returns them to the mechanism employs is first-in first-out method.

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] In a management processing method that cuts out and uses common resources, an area management mechanism cuts out collective areas corresponding to a plurality of units in response to an area acquisition request.

It is disclosed that the group area is subdivided and given to the request source, thereby reducing the number of area management processes.

[Industrial application field]

The present invention relates to a common resource management processing method, and particularly to a common resource management processing method in which an area management mechanism extracts and manages a collective area from a common resource in response to an area acquisition request from a request source.
[Prior Art] Conventionally, one or more request sources acquire an area from a common resource and use it for processing. In the conventional case, each time a request source issues an acquisition request, the area management mechanism cuts out unit areas corresponding to the number of requests from the common resource.

[Problem that the invention seeks to solve]

In the case of the conventional method described above, an area is cut out each time a request source requests area acquisition. For this reason, as the number of request sources increases, the number of times the common resource is cut out increases, which may result in wasted processing time.

[Means for solving problems]

The present invention solves the above-mentioned problems, and FIG. 1 shows a basic configuration diagram of the present invention. In the figure, numeral 1 is a request source, 2 is a common resource, and 3 is an area management mechanism.

4 is one of the collective areas carved out from the common resource,
5 represents one or more subdivision areas that are lent to requesters on the collective area, and 6 represents a position carved out from the common resource.

The area management mechanism 3 performs nine-order management control in response to an area acquisition request from the request source 1.

(i) The number of unit areas (considered to be the same size as the subdivision area) requested by the request source 1 and the number of subdivision areas in the empty area on the collective area 4 that has already been cut out from the common resource 2. Compare.

When the former number is large, a new collective area 4 is cut out from the common resource 2.

(ii) Then, the subdivided area within the empty area and the subdivided area obtained by subdividing the newly cut out collective area 4 are lent to the requester l.

(iii) Even if the subdivision area is returned from request source 1.

Normally, it is not returned to the common resource 2 and is prepared for later reuse.

(iv) Regarding the collective area cut out from the common resource 2, the resource is managed using the starting address of the free area, the final address of the acquired area, the starting address of the released area, and the final address of the released area.

[Effect]

When the request source 1 issues an area acquisition request to acquire an area corresponding to a predetermined number of unit areas, the area management mechanism 3 issues a subdivided area corresponding to the free space in the collective area 4 that has already been carved out from the common resource 2. Find out the number of. If there is a shortage, the area management mechanism 3 newly cuts out a collective area 4 from the common resource 2 and subdivides the subdivided areas within one or more collective areas 4 that have been cut out from the common resource 2. The number of items requested will be lent to the requester.

The manner in which the subdivision area is lent to the request source 1 and the subdivision area is returned from the request source 1 is a so-called first-in-last-out format.

〔Example〕

FIG. 2 shows an embodiment of management by the area management mechanism. Symbols F to 12 in the figure are respectively.

The collective areas 7-1, 9-1, etc. cut out from the common resource 2 are the next block address parts in which the address of the next collective area on the chain is written, 7-2, 9-1, etc. 9-2, etc. are the previous block address parts in which the address of the collective area located before on the chain is written, and 7-3, 9-3, etc. are the empty subdivision areas for each individual collective area. The numbers described as block sizes, such as 7-4 and 9-4, are free areas and represent the range in which subdivision areas are located.

In the case shown in Figure 2, (i) all or part of collective areas 9 and 1) are lent to the requesting party.

(ii) If it is necessary to acquire a group area next time, it indicates that the group area 12 should be extracted and acquired + (iii) When the subdivision area is returned from the request source. are area 1) in order from population area 7. This shows that area 8 should be released and that area 8 is the final group area that can be released.

[Effects of the Invention] As explained above, according to the present invention, the area management mechanism manages the collective area by cutting it out from the common resource in response to an area acquisition request from the request source. The number of processing times is significantly reduced.

[Brief explanation of the drawing]

FIG. 1 shows the basic configuration of the present invention, and FIG. 2 shows an embodiment of management by an area management mechanism. In the figure, 1 represents a request source, 2 represents a common resource, 3 represents an area management mechanism, 4 represents a collective area, and 5 represents a subdivision area lent to the request source.

Claims (1)

[Claims] One or more request sources (1) request area acquisition from a common resource (2), and an area management mechanism (3) acquires an area from the common resource (2). In a data processing device that manages addresses and final addresses, the area management mechanism (3), in response to an area acquisition request from the request source (1), manages a collective area corresponding to a plurality of predetermined units. (4) from the common resource (2), and the area management mechanism (3) divides the group area (4) into subdivided areas (5). In addition to controlling the subdivision area to be given to the request source (1), the subdivision area that is no longer needed is controlled to be reusable, and in response to an area acquisition request that exceeds the size of the subdivision area,
New collective area (4) from the common resource (2) above
A common resource management processing method characterized in that the common resource management processing method is configured to perform control such that the resource is extracted.