JPH0612310A - File simultaneous editing device - Google Patents

Abstract

PURPOSE:To make plural alterations at the same time while maintaining the consistency of information for a file to be edited, and to maintain the consistency of information between the object file to be edited and a relative partial area not to be edited at the time of editing operation. CONSTITUTION:One editing device 4a when starting editing the partial area 2a of a 1st file to be edited inquires the possibility of editing of one exclusive control table controller 5a. The exclusive control table controller 5a checks whether or not the editing operation can be done by referring to an exclusive control table 8 and updates the exclusive control table 8 when the editing operation can be performed so as to indicate that exclusive control is carried out. Then the relative partial area of the partial area 2a of the 1st file to be edited is checked by referring to a relative information table and when the area is found, the exclusive control table 8 is updated by regarding it as an object of the exclusive control. Then the editing operation is performed and at its end, the exclusive control table 8 is put back to its original state and the exclusive control is reset.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous editing system which enables a plurality of changes to be made on an edited file at the same time while performing exclusive control on a partial area of the edited file on a computer. .

[0002]

2. Description of the Related Art Generally, in editing work, it is necessary to avoid making a plurality of changes at the same time in order to maintain the consistency of information in a file to be edited. For this reason, it is necessary to avoid making simultaneous changes to the same edited file by performing exclusive management, and to maintain the consistency of the information in the edited file.

Exclusive management in editing work is realized by implementing a file lock. A file lock is an edited file that cannot be changed at the same time, and it is confirmed that there is no editing device that is currently editing the edited file by checking the presence or absence of a change mark (lock if present), If so, give up or postpone the change, and if not, the editing device that initiates the change marks it as being changed so that no other changes can be made (locked). Then, when the change is completed, the mark of the editing work is erased.

Conventionally, in order to meet such a demand,
An exclusive management method as shown in FIG. 11 has been proposed. FIG. 11 is a block diagram of the apparatus shown in the September 1991 issue of Super Ascii (publishing company ASCII), in which 1 is an edited file and 4a is a first edited file. And an editing device 4b is a second editing device for changing the edited file 1. 1
Reference numeral 0 is an exclusive management device for exclusive management of the edited file 1.

Next, a description will be given with reference to FIG. 11 and a flowchart of FIG. 12 showing the operation of the conventional exclusive management device 10. First, the first editing device 4a requests the exclusive management device 10 to lock the file to be edited 1 when starting the editing work. The exclusive management device 10 has information regarding whether or not the edited file 1 is file-locked, and when the file-to-be-edited 1 is file-locked, the device other than the editing device 4a that has requested the file lock. The exclusive management device 10 that has received the request executes the file lock information confirmation step 37 shown in FIG. In this file lock information confirmation step 37, the file to be edited 1 is already subject to the file lock and the exclusive management device 1
Check if it is registered to 0. If the file to be edited 1 is file locked, the file lock request step 40 shown in FIG. 12 notifies the first editing device 4a that the file lock request to the file to be edited 1 has failed. File lock information confirmation step 3
As a result of No. 7, when the edit file 1 is not fill-locked, the file lock information registration step 38 shown in FIG. 12 is executed. In the file lock information registration step 38, the file to be edited 1 is registered in the exclusion management device 10 so that the file is locked by the first editing device 4a. Next, at the file lock success notification step 39 of FIG. 12, the edited file 1 is sent to the first editing device 4a.
A successful file lock request to. The first editing device 4 that succeeds in file locking in this way
a changes the edited file 1.

Next, in this state, consider a case where the second editing apparatus 4b issues a file lock request to the exclusive management apparatus 10 in order to start editing work on the edited file 1. The exclusive management device 10 checks the file lock information of the edited file 1 as described above, and confirms that the edited file 1 is already file locked by the second editing device 4
tell b. If the second editing device 4b forcibly tries to change the edited file 1, the change is rejected. In this way, the edited file 1 is not changed by the second editing device 4b until the file lock by the first editing device 4a is released.

Then, the first editing device 4a issues a file lock release request to the exclusive management device 10 after the change is completed. Upon receipt of this, the exclusive management device 10 deletes the information that the edited file 1 is locked by the first editing device 4a. A file lock request issued to the edited file 1 by the second editing apparatus 4b after this is accepted, and the edited file 1 can be changed by the second editing apparatus 4b.

[0008]

Since the conventional editing method is based on the above-described editing method, the unit of exclusive management is each edited file. For this reason, when one editing device locks an edited file to update it, the other editing device cannot update the edited file, and at the same time, can perform multiple update processes on the edited file. There is a problem that work efficiency is reduced because it is not present.

If one editing device does not lock the file to be edited and updates the edited file, the other editing device permits the modification. As a result, changes made by one editing device and changes made by another editing device are made independently,
Since there is a problem such as loss of information consistency in the edited file, considering the efficiency, it is necessary to lock the appropriate unit and the related information area of the same unit, but these cannot be done. There was a problem.

The present invention has been made to solve the above problems, and an object thereof is to enable a plurality of updates to an edited file at the same time while maintaining the consistency of information. .

[0011]

A simultaneous editing apparatus according to the present invention includes an exclusive management table having exclusive management information for a partial area of an edited file and a part of the edited file in the exclusive management table in response to a request from the editing apparatus. An exclusive management table control device for inquiring the editability of an area and further updating the contents thereof, and an edit device for controlling the editable range of a file to be edited based on the inquiry result are provided.

Further, when the related information of the partial area of the file to be edited is held on the same or different file, the related information table for holding this information is provided.

[0013]

In the simultaneous editing apparatus for files according to the present invention, when a plurality of update requests are simultaneously issued to a partial area of a file to be edited, the editing apparatus and the exclusive management table control apparatus which receive one of the processing requests select Related information
The exclusive management table is updated including the relevant information when the user sees the table, and access to the partial area of the edited file by the editing device and the exclusive management table control device of the other update processing request is prohibited, When the update process is completed, the contents of the exclusion management table are restored to cancel the exclusion management. In the same manner, the exclusive management table control device can be accessed by other editing devices that have received another update processing request. Such processing is performed at the same time while maintaining information consistency in each partial area of the file to be edited and its related information area by selection, and as a result, a plurality of editing processing of the file to be edited are simultaneously performed.

[0014]

【Example】

Example 1. FIG. 1 is an overall configuration diagram of an embodiment of claim 1 of the simultaneous editing system according to the present invention. In FIG. 1, 1 is an edited file, 2 is a general partial area of the edited file 1, 2a is a partial area of a first edited file, 2b is a partial area of a second edited file, and 4 is an editing device. , 4a is a first editing device for changing the partial area 2a of the first edited file, 5 is an exclusive management table control device, 5a
Is a first exclusive management table control device for inquiring the editability of the partial area 2a of the first edited file by the first editing device 4a or updating the exclusive management table, and 4b is for the second edited file. A second editing device 5b for changing the partial area 2b is a second exclusive management table for inquiring the editability of the partial area 2b of the second edited file by the second editing device 4b or updating the exclusive management table. It is a control device. 8 is referred to by the first exclusive management table control device 5a and the second exclusive management table control device 5b,
Alternatively, it is an exclusive management table having exclusive management information regarding partial areas of all edited files to be updated.

Next, the operation of the simultaneous editing method configured as described above will be described with reference to FIGS. Figure 2
Is a flow chart showing the operation when the exclusive management table control device 5 is inquired by the editing device 4 about the editability of the partial area 2 of the edited file 1. FIGS. 3 to 6 show the following edit operations. FIG. 4 is a diagram showing the contents of the exclusive management table 8, in which FIG. 3 shows the initial state before the editing work is performed on the partial area of the edited file.

When the first editing device 4a starts the editing operation of the partial area 2a of the first edited file, the first exclusive management table control device 5a instructs the first exclusive management table controller 5a to edit the partial area 2a of the first edited file. Inquire about editability of. The first exclusive management table control device 5a which has received the inquiry starts its operation and performs the exclusive management information confirmation step 31 shown in FIG. In the exclusive management information confirmation step 31, it is checked by referring to the exclusive management table 8 whether the editing work can be performed on the partial area 2a of the first edited file. Since the exclusive management table 8 of the edited file 1 is initially in a blank initial state as shown in FIG. 3, it can be understood that the editing operation of the partial area 2a of the first edited file is possible. Next, the exclusive management information updating step 32 shown in FIG. 2 is executed. In this exclusive management information updating step 32, the partial area 2a of the first edited file which is found to be editable in the exclusive management information confirming step 31 is the first editing device 4
The exclusive management table controller 5a rewrites the exclusive management table 8 to indicate that it is exclusively managed by a (exclusively accessed). As a result, the contents of the exclusion management table 8 become as shown in FIG. Next, the exclusive management success notification step 33 shown in FIG. 2 is executed. In the exclusive management success notification step 33, the fact that the partial area 2a of the first edited file can be edited is notified via the first exclusive management table controller 5a. In this way, the first editing device 4a that succeeds in exclusive management of the partial area 2a of the first edited file by the operation of the first exclusion management table control device 5a is the partial area 2a of the first edited file. Update.

Next, while the first editing device 4a is being updated, the second editing device 4a
The editing device 4b of the first partial file 2a of the first edited file.
When the editing work is started, the second exclusive management table control device 5b starts the operation and performs the exclusive management information confirmation step 31 in the same manner as above. In the exclusive management information confirmation step 31, the exclusive management table 8 in the state shown in FIG. 4 is referred to, but it can be seen that the first editing device 4a has already exclusive-controlled the partial area 2a of the first edited file. Therefore, the exclusion management failure notification step 34 shown in FIG. 2 is executed. Exclusive management failure notification step 34
Then, the second editing device 4b is notified that the partial area 2a of the first edited file cannot be edited.
In this way, the second editing device 4 recognizes that the exclusive management of the partial area 2a of the first edited file has failed due to the operation of the second exclusive management table control device 5b.
b cannot update the partial area 2a of the first edited file.

Subsequently, when the second editing device 4b again tries to start the editing work of the partial area 2b of the second edited file, the second exclusive management table control device 5b starts the operation and As described above, the exclusive management information confirmation step 31 is performed. The exclusive management information confirmation step 31 refers to the exclusive management table 8 in the state shown in FIG. 4, and since the partial area 2b of the second edited file is not subjected to exclusive control, the partial area 2b of the second edited file is It turns out that editing work is possible. Next, exclusive management information update step 3
The exclusive management table control device 5b sets the exclusive management table 8 to indicate that the partial area 2b of the second edited file which is found to be editable by executing step 2 is updated by the second editing device 4b. rewrite. As a result, the exclusion management table 8 becomes as shown in FIG. Next, in the exclusion management success notification step 33, the partial area 2b of the second edited file is transmitted via the second exclusion management table control device 5b.
Notify that the can be edited. The second editing device 4b, which succeeds in exclusive management of the partial area 2b of the second edited file by the second exclusive management table control device 5b, updates the partial area 2b of the second edited file.

The first editing device 4a, which has finished changing the partial area 2a of the first edited file, notifies the first exclusive management table control device 5a of the completion of the editing work. The first exclusion management table control device 5a receiving this notification rewrites the exclusion management table 8 so as to delete the information regarding the exclusion management of the first editing device 4a. As a result, the exclusion management table 8 becomes as shown in FIG. As a result of this
The exclusive management for the partial area 2a of the file to be edited is released, and the editing work by the second editing device 4b becomes possible.

When an update request is made for any of the partial areas of the file to be edited 1, the above processing is performed for each partial area. However, the processing of these partial areas proceeds in parallel between the partial areas. If the entire edited file 1 is viewed, the editing process is simultaneously performed for a plurality of update process requests. Further, in the above embodiment, the file to be edited 1 is changed by the two groups of the first editing apparatus 4a, the second editing apparatus 4b and the related apparatus. However, this is not the two groups but an arbitrary number of editing apparatuses. May be The same applies to the case of the second embodiment described below.

Example 2. FIG. 7 is an overall configuration diagram of an embodiment of claim 2 of the simultaneous editing apparatus according to the present invention. In FIG. 7, parts that are the same as or correspond to those in FIG. Reference numeral 2c is a partial area of the third edited file, which is a related partial area of the partial area 2a of the first edited file, and 9 is referred to when the first exclusive management table controller 5a changes the exclusive management table 8. It is a related information table which has information about the related partial area. FIG. 8 is a flowchart showing the operation when the exclusive management table control device 5a is inquired by the editing device 4a about the editability of the partial area 2a of the edited file,
3 and 9 are diagrams showing the state of the exclusive management table at the time of each editing work, and FIG. 3 shows the initial state before the editing work is performed on the partial area 2 of the file to be edited as described above. 10 shows the state, and FIG. 10 shows the related information table 9 of the edited file 1.

Next, the operation will be described. In FIG. 7 and FIG. 8, when the first editing device 4a starts the editing work of the partial area 2a of the first edited file, the first edited file is sent to the first exclusive management table control device 5a. Inquiry about the editability of the partial area 2a. The first exclusive management table control device 5a that has received the inquiry starts its operation, and the exclusive management information confirmation step 31 shown in FIG.
To execute. This exclusion management information confirmation step 31 refers to the exclusion management table 8 to check whether or not the editing work can be performed on the partial area 2a of the first edited file. Since the exclusive management table 8 of the edited file 1 is in a blank initial state as shown in FIG. 3, it can be seen that the editing operation of the partial area 2a of the first edited file is possible. Next, the exclusive management information updating step 32 shown in FIG. 8 is executed. In this exclusive management information updating step 32, in order to show that the partial area 2a of the first edited file found to be editable in the exclusive management information confirming step 31 is exclusively managed by the first editing device 4a. The exclusive management table control device 5a rewrites the exclusive management table 8. Then, the related information confirmation step 35 shown in FIG. 8 is executed.

The related information here is information that is logically related to or integrated with the contents of the partial area 2a of the first edited file, and is often accessed or updated at the same time. The information is written in an area different from the partial area 2a of the first edited file. For example, when the content of the edited file 1 is a source code, the function called by it corresponds to the related information. Related information confirmation step 35
Then, referring to the related information table 9 of FIG. 10, it is checked whether or not there is a related partial area of the partial area 2a of the first edited file. If not, the exclusive management success notification step 33 is executed. Since the related information table 9 contains the related information about the partial area 2a of the first edited file, FIG.
Exclusive management information update step 36 based on related information shown by
I do. In the related information exclusive management registration step 36, the exclusive management table control device 5a is controlled so that the partial region 2c of the third edited file, which is a related partial region, is also exclusively managed by the first editing device 4a according to the information in the related information table 9. Rewrites the exclusion management table 8. The exclusive management table 8 is now as shown in FIG. Next, the exclusive management success notification step 33 shown in FIG. 8 is performed. In the exclusive management success notification step 33, the fact that the partial area 2a of the first edited file can be edited is notified via the first exclusive management table controller 5a. As described above, the exclusive management of the partial area 2a of the first edited file is succeeded by the operation of the first exclusive management table control device 5a, and at the same time, in the related partial area of the partial area 2a of the first edited file. Exclusive management of the partial area 2c of a certain third edited file was also performed. After this, the first editing device 4a updates the partial area 2a of the first edited file and, if necessary, the related partial area 2c of the third edited file. The partial area 2c of the third edited file is the edited file 1
Needless to say, even when the file is on a file other than the above, in the same manner as described above, the processing necessary for exclusive management is performed, such as whether or not the editing work can be checked via the exclusive management table 8 when updating.

The first editing device 4a, which has finished updating the partial area 2a of the first edited file, notifies the first exclusive management table control device 5a of the end of the editing work. Upon receiving this notification, the first exclusive management table control device 5a excludes from the exclusive management table 8 the partial area 2a of the first edited file and the partial area 2c of the third edited file of the first editing apparatus 4a. Rewrite to delete the control information. With this, the exclusion management table 8 returns to the state of FIG. 3, and the exclusion control is released. As a result, the exclusive management of the partial area 2a of the first edited file is released, and at the same time, the exclusive management of the partial area 2c of the third edited file is released.

In the above embodiment, the partial area of the edited file is targeted for exclusive management. However, the partial area of the edited file may be the entire edited file, or may be another file or a portion different from the edited file. Good.

Although the presence / absence of relevant information in the area to be updated is determined by checking the content of the relevant information table 9, it may be determined by another method. For example, the presence / absence of related information may be determined based on the contents of the update target area, and if there is, the related information may be written in the related information table 9 and the exclusive control of these related information areas may be performed concurrently.

[0027]

According to the present invention, since only a partial area of a file to be edited is subject to exclusive management when a file is edited, information consistency can be maintained for the same file to be edited. You can do multiple edits at the same time,
This has the effect of improving the efficiency of editing work.

Further, by automatically subjecting the partial area related to the partial area of the edited file to the exclusive management as the exclusive management object, it is possible to maintain the consistency of the content of the edited file during the editing work. At the same time, editing work is performed at the same time, which has the effect of improving work efficiency.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of claim 1 of the present invention.

FIG. 2 is a flow chart showing an operation of the exclusive management table control device of claim 1 according to the present invention.

FIG. 3 is a diagram showing an initial state of an exclusive management table according to the present invention.

FIG. 4 is a diagram showing a state of an exclusive management table according to the present invention.

FIG. 5 is a diagram showing a state of an exclusive management table according to the present invention.

FIG. 6 is a diagram showing a state of an exclusive management table according to the present invention.

FIG. 7 is an overall configuration diagram of an embodiment of claim 2 of the present invention.

FIG. 8 is a flow chart showing the operation of the exclusive management table control device of claim 2 according to the present invention.

FIG. 9 is a diagram showing a state of an exclusive management table according to the present invention.

FIG. 10 is a diagram showing a state of a related information table according to the present invention.

FIG. 11 is a block diagram showing a conventional editing method.

FIG. 12 is a flowchart showing an operation of a conventional exclusive management apparatus.

[Explanation of symbols]

 1 Edited File 2a Partial Area of First Edited File 2b Partial Area of Second Edited File 2c Partial Area of Third Edited File 4a First Editing Device 4b Second Editing Device 5a First Exclusive management table control device 5b Second exclusive management table control device 8 Exclusive management table 9 Related information table 10 Exclusive management device

Claims (2)

[Claims] 1. A plurality of sets of an editing device for updating an edited file, an exclusive management table control device for managing exclusive management information for partial areas of the edited file, and exclusive management information for each partial area of the edited file. In a file simultaneous editing device having an exclusive management table to be held, when a plurality of update processing requests occur concurrently for the same partial area of an edited file, the editing device is driven in response to the update processing request. Exclusive control of access to the partial area of the edited file is performed by the exclusive management table control device and the exclusive management table of one editing apparatus that has accessed the partial area of the edited file, and at the same time,
A file simultaneous editing device characterized in that the same processing is carried out in parallel for arbitrary different partial areas of the file to be edited. 2. An exclusive control of access to the edited file targets not only a partial area of the edited file but also an area of related information of the partial area, and a related information table holding information related to the related information. The simultaneous file editing apparatus according to claim 1, further comprising: