JPH0462640A - Data processor - Google Patents

Abstract

PURPOSE:To easily attain the desired exclusive control by using the information on the propriety for simultaneous execution of plural programs set optionally to execute the exclusive control. CONSTITUTION:The exclusive table memory 4 is the memory to store the exclusive table. The information on the propriety for simultaneous execution of a processing program related to an executing request and a processing program under execution is registered into an exclusive table memory when an executing request is received for a certain processing program belonging to a certain group in a state where the processing programs included in a processing program file group 2 are divided into groups. In regard of the exclusive tables, the execution is inhibited for the entry processing related to an executing request since the propriety information shows 'impossible' at a position where the groups A and B cross each other if the executing request is executed with operation of a terminal equipment Tn for the entry processing belonging to the group B for updating files in the midst of a state where the input processing is executed by a terminal equipment T1 for the sale slips belonging to the group A for input of data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing device such as an office computer that can simultaneously execute a plurality of processing programs.

[Summary of the Invention] In the data processing device as described above, the present invention is directed to determining whether simultaneous execution of arbitrarily set processing programs is possible without relying on an exclusive control program that corresponds one-to-one with the processing system. By prohibiting simultaneous execution of processing programs that are in an exclusive control relationship based on information about the program, even a user with no knowledge of programming can easily perform the desired exclusive control.

[Prior Art] Conventionally, in a data processing apparatus equipped with a processing system that can execute multiple processing programs simultaneously, simultaneous execution of a file processing program and a print processing program for printing file contents is prohibited. When programs that have an exclusive control relationship that should be controlled coexist in a processing system, a function is provided to prohibit simultaneous execution of these programs that have an exclusive control relationship.

In this case, the prohibited function was realized by an exclusive control program that was created taking into consideration the exclusive control relationship between the processing programs in the processing system.

[Problems to be Solved by the Invention] However, creating an exclusive control program requires a great deal of effort and time.

Furthermore, exclusive control programs are not versatile, so when adding a new application processing program to a processing system, it is necessary to modify the exclusive control program, but this modification requires advanced program knowledge. Therefore, for -i users, there were cases in which it became virtually impossible to add application processing programs.

This is due to the fact that exclusive control must be performed by an exclusive control program that corresponds one-to-one with the processing system.

However, if exclusive control is achieved by arbitrarily setting information regarding whether or not each processing program can be executed simultaneously, instead of relying on an exclusive control program that corresponds one-to-one with the processing system, the above problem can be solved. It is clear that it can be solved.

An object of the present invention is to enable exclusive control based on information regarding whether or not simultaneous execution is possible between arbitrarily set processing programs.

[Means to solve the problem] The means of this invention are as follows.

The present invention is a data processing device capable of simultaneously executing a plurality of processing programs, and the setting means a (see the functional block diagram in FIG. 1, hereinafter) includes information regarding whether simultaneous execution is possible between the processing programs. Set arbitrarily.

The storage means stores the current execution state of the processing program.

The determining means C determines when execution of the processing program is requested.
Based on the setting means a and the storage means A, it is determined whether or not the processing program related to the execution request and the processing program currently being executed can be executed simultaneously.

The prohibiting means d prohibits simultaneous execution of the processing program related to the execution request and the currently executing processing program when the determining means C determines that simultaneous execution is not possible.

[Work] The operation of the means of this invention is as follows.

Now, in the setting means a, in correspondence with the program name of the file processing program, the program name of the print processing program for printing the file contents is stored as a processing program whose simultaneous execution with the file processing program should be prohibited. It is assumed that the execution flag is set in the storage means and corresponds to the program name of the file processing program and indicates that the program is currently being executed.

In this state, when a request is made to execute the print processing blocks, the determining means C determines whether simultaneous execution is possible, for example, as follows.

That is, it is searched whether or not a processing program that is prohibited from being executed simultaneously with the print processing program related to the execution request is set in the setting means a.

As a result, since the file processing program is set as a processing program whose simultaneous execution is prohibited, the execution flag corresponding to the file processing program is read from the storage means. In this case, the running flag is set, indicating that the file processing program is currently being executed, so the print processing program related to the execution request and the file processing program currently being executed cannot be executed simultaneously. Discern.

In this way, when it is determined that simultaneous execution is not possible, the prohibiting means d prohibits the execution of the print processing program related to the execution request, and continues the execution of the file processing program currently being executed. Alternatively, if the priority of the print processing program related to the execution request is high, the execution of the file processing program currently being executed is interrupted and the print processing program related to the execution request is executed, and the print processing program related to the execution request is executed. Prohibits simultaneous execution of the processing program and the currently running file processing program.

Therefore, exclusive control can be performed based on information regarding the possibility of simultaneous execution between arbitrarily set processing programs.

[Example] Hereinafter, an example will be described with reference to FIGS. 2 to 9.

FIG. 2 is a block diagram of the data processing device, and C
One device main body H consisting of a PUI, a processing program file group 2, a data file group 3, an exclusive table memory 4, a menu full memory 5, a status counter tape memory 6, a plurality of terminals T1 to Tn, and a plurality of terminals T1 to Tn. printers P1 to Pn are connected via an inline L.

This data processing device processes data input from a terminal device T1, etc. in various ways using the device main body H, and
It is printed in Pn.

The device main body H0'') CPU1 checks the validity of the input data from the terminals T1 to Tn by executing the processing program in the processing program file group 2, and saves valid data to the file in the data file group 3. , update the files in data file group 3 based on this input data, convert the file contents in data file group 3 into a form output pattern, and output the data to printers P1 to P.
performs various processing such as forwarding to n.

At this time, the CPU 1 is capable of simultaneously executing multiple processing programs in the processing program file group 2 by time sharing, that is, multi-processing, but there are some settings in the processing program file group 2 that should prohibit simultaneous execution of each other. Processing programs that are in an exclusive control relationship coexist, and have a function of prohibiting simultaneous execution of these processing programs that are in an exclusive control relationship. This exclusive control is performed in groups by utilizing the exclusive table memory 4, menu table memory 5, and status counter table memory 6.

That is, the exclusive table memory 4 is a memory that stores an exclusive table as shown in FIG. In this exclusive table, if each processing program in processing program file group 2 is divided into groups, and when a request to execute a processing program belonging to a certain group is made while the processing programs belonging to those groups are being executed, , information regarding whether or not the processing program related to the execution request is to be executed at the same time as the processing program currently being executed ("possible" or "impossible" in the figure) is registered. The exclusive table in FIG. 3 shows, for example, that while the terminal T1 is executing the input process of a sales slip belonging to the data input group 'A', the bookkeeping process belonging to the file update group 'B' is executed. When the execution request is made by operating the terminal Tn,
Since the permission information at the intersection of group "A" and group "B" is "not allowed", this indicates that execution of the bookkeeping process related to the execution request is prohibited.This exclusive table memory 4 The exclusive table can be set arbitrarily by the user.

The menu table memory 5 is a memory that stores a menu table as shown in FIG.

In this menu table, corresponding to the menu number,
"Menu name°°" for inputting sales slips, processing program names such as "AOI°',""A","B","C".

etc. group codes are registered. Setting of the menu table in the menu table memory 5 is also performed arbitrarily by the user. It should be noted that a processing program for which no group code is registered, such as ``monthly report print'' in FIG. 4, can be executed simultaneously with any processing program.

The state counter table memory 6 is a memory that stores a state counter table as shown in FIG. This status counter table indicates whether or not each processing program is being executed in units of the above groups, and
It also shows how many processing programs belonging to the same group are being executed simultaneously (this number of concurrently executing programs within the same group is called the state count value). That is, FIG. 5(a) shows the file update group "Bo
Only the state count value of o is "1", and the state count values of the other groups are "0", indicating that only one file update processing program is being executed. , FIG. 5(b) shows that the state count value of the data input group "'A" is 1°°, and the state count value of the file update group "B"° is "'o".
, the state count value of group ゛C°゛ for form printing is 2”
This indicates that one data input processing program and two form printing processing programs are being executed simultaneously.

Note that once the exclusive title is set, there is no need to modify it even if a processing program is added or deleted, and only the menu table needs to be modified.

Next, the exclusive control operation will be explained with reference to FIGS. 6 and 7.

First, the operator sets an exclusive table in the exclusive table memory 4 by operating any of the terminals T1 to Tn (step S1 in FIG. 6). Next, in steps 82 to S5, the menu table is set in the menu table memory 5. That is, the menu name, processing program name, and group code for one process are sequentially registered (steps 82 to S4). If there are still processes left to be registered (step S5), the process returns to step S2 and the above registration operation corresponding to the remaining processes is continued. If there are no processes remaining to be registered, step S6 is performed When the system is started 9, the CPUI displays the contents of the menu table set in the menu table memory 5 (step S7). Then, the operator inputs the menu Nα of the process that he wants to execute now (step S8).

Then, the CPU searches the menu table for the registration status of the group code corresponding to the process of the input menu number (step S9), and determines whether the group code is registered (step 510). As a result, if it is registered, the column on the exclusive table corresponding to the group indicated by the group code, that is, the execution request group, is searched (step 511), and there is a group that has an exclusive control relationship with the execution request group. It is determined whether or not (step 512). As a result, if there is a group in an exclusive control relationship, the state count value at the intersection of that group and the execution request group is read from the state counter table (step 513).
- Determine whether the state count value is “0゛′” (
Step 514). As a result, the state count value is °゛0
If not, it means that a processing program that has an exclusive control relationship with the processing program related to the execution request is being executed, so the execution request is handled as an error in order to prohibit execution of the processing program related to the execution request, The error message is displayed on the display section of the terminal device for which the execution request was made (step 515). The operator then specifies error cancellation in response to the error message (step 816).

Then, cpUl returns to step S7 and displays a menu. Therefore, the operator can input menu Nα to perform another process.

When it is determined in step S12 that there is no group that has an exclusive control relationship with the group related to the execution request, it is further determined whether the number of processing programs currently being executed is less than or equal to a predetermined number (step 517), resulting in 4
If there are more than a predetermined number, even if there is no exclusive control relationship,
If concurrent execution of the processing programs related to the execution request is allowed at this point, the reduction in processing speed based on each processing program currently being executed will exceed the allowable range, so the process advances to step S15 and error processing is performed. On the other hand, if the number is less than the predetermined number, the above problem will not occur, so add 1 to the status count value of the same group as the execution request group.
Then, the processing program related to the execution request is started (step 519), and the process returns to step S7.

By this activation, if there is a processing program currently being executed, that processing program and the processing program related to the execution request will be multi-processed.

Further, when it is determined that the value is 0' in step S14, it means that there is a group that has an exclusive control relationship with the group related to the execution request, or that the group that has the exclusive control relationship is not currently being executed. However, to that extent, simultaneous execution may be permitted, but the process proceeds to step S17 to further verify the above conditions. Further, when it is determined in step S10 that no group code is registered for the processing program related to the execution request, the processing program related to the execution request is not allowed to be executed simultaneously in relation to the paired group. This also means that the above conditions are acceptable, but in order to further verify the above conditions, the process proceeds to step S20.

Next, the post-processing when the series of processing by the processing program being executed is completed will be explained with reference to FIG.

In this post-processing, the menu table is searched for the group coat column for the processing program that has completed a series of processes (step 571), and it is determined whether a group coat is registered (step 572). As a result, if the group coat is registered, the state count value of the corresponding group is subtracted by 1 (step 873).

On the other hand, if the group code is not registered, a nop process will be performed.9 In this way, based on the arbitrarily set exclusive table, menu table, etc., without depending on the exclusive control program,
Exclusive control is performed on a group-by-group basis.The advantages of performing exclusive control on a group-by-group basis are as follows. That is, compared to registering processing programs that are in an exclusive control relationship for each individual processing program, the registration contents are greatly reduced, making the setting of the exclusive table much easier.

[Application modification example] As shown in Fig. 8, the exclusive chifur includes an execution request,
Alternatively, it is also possible to register only groups that have an exclusive control relationship with the group that is currently being executed. Furthermore, the execution state may simply be stored as a state count value for each group, as shown in FIG. Furthermore, the form of simultaneous execution prohibition does not always prohibit the execution of the processing program related to the execution request, but rather
Depending on the priority based on the system flow, etc., the execution of the processing program related to the execution request and the processing program currently being executed may be prohibited, with a lower priority, and the one with a higher priority may be executed. . Note that if you do not limit the number of processing programs that can be processed simultaneously, you can simply check whether they are being executed or not without setting the status count value.
A flag indicated by 0" may be provided.

[Effects of the Invention] According to the present invention, exclusive control can be performed based on information regarding the possibility of simultaneous execution between arbitrarily set processing programs, and even a person without knowledge of programming can easily perform the control. It becomes possible to realize desired exclusive control.

[Brief Description of the Drawings] Figure 1 is a functional block diagram of the present invention, Figure 2 is a block configuration diagram of an embodiment, Figure 3 is a diagram illustrating the contents of an exclusive table, and Figure 4 is the contents of a menu table. A diagram illustrating,
FIG. 5 is a diagram illustrating the contents of the status counter table, FIG. 6 is a flowchart showing exclusive control operation, FIG. 7 is a flowchart showing post-processing when processing by a processing program related to multi-processing is completed, and FIG. This figure shows a modification of the exclusive table, and FIG. 9 shows a modification of the execution state storage method. 1-...CPU, 4...Exclusive table memory, 6...
- Status counter table, T1 to Tn...Terminal. (a) Figure ■)

Claims (1)

[Claims] In a data processing device capable of simultaneously executing a plurality of processing programs, there is provided a setting means for arbitrarily setting information regarding whether simultaneous execution is possible between each processing program, and storing the current execution state of the processing programs. storage means; and determination means for determining whether or not the processing program related to the execution request and the processing program currently being executed can be executed simultaneously based on the setting means and storage means when execution of the processing program is requested; A data processing device comprising: prohibition means for prohibiting simultaneous execution of a processing program related to an execution request and a processing program currently being executed when the determination means determines that simultaneous execution is not possible. .