JP3641341B2 - Online exclusive weight avoidance device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exclusive weight avoidance apparatus , and more particularly to an online exclusive wait avoidance apparatus when online processing and offline processing conflict.
[0002]
[Prior art]
For example, in Japanese Patent Laid-Open No. 61-194548 “File Access Exclusive Control Method”, a conventional exclusive wait avoidance device reads in a system in which a plurality of programs access a common file immediately before each program accesses the common file, This is an exclusive control method in which a lock file to be rewritten immediately after the access ends is provided, and access to the common file is permitted only when the use of the lock file is permitted.
[0003]
Referring to FIG. 5, while the program A100 sets the lock file R102 to the use state and reads / rewrites the file 1103 to the file n104, the program B101 issues a read request to the file 1103 to the file n104. Since the program B101 waits for a read request, the program B100 cannot perform processing until the program A100 rewrites the lock file R102 and releases the use.
[0004]
[Problems to be solved by the invention]
The conventional file access exclusive control method described above is that when one program occupies a common file, the other program waits for a read request and waits for processing. In particular, when a program waiting for a read request is online processing, online work cannot be performed.
[0005]
The reason is that it does not have a means for escaping control from the processing waiting state when detecting a waiting for a read request.
[0006]
The purpose of the present invention is to set an execution time zone for offline processing, and for processing request messages that do not use a common file even during offline processing, classify the processing requests so that online processing can be performed and minimize the influence of business stoppage etc. It is an object of the present invention to provide an online exclusive wait avoidance device .
[0007]
[Means for Solving the Problems]
The online exclusive wait avoidance device of the first invention is:
An online exclusive wait avoiding device that has an online processing unit, an offline processing unit, and a common file, in which online processing and offline processing are mixed and the exclusive weight of online processing is considered when using the common file ,
The common file is
When a common file is used, it has a lock file that is displayed as occupied, and the online processing unit
A message distribution means for acquiring the processing request message notified from the operating system of the processing request message for online processing from the communication line and distributing the message;
First occupancy check means for checking whether or not the lock file is occupied when the distributed processing request message is a processing request message using a common file or a timeout message notified from the operating system ;
First timer setting means for setting a timer and starting a timer when the lock file is occupied;
If the lock file is not occupied, a first business process that displays the lock file being occupied, processes the processing request message using the common file, and releases the lock file when the process ends. Means ,
A second processing unit for processing the processing request message immediately when the distributed processing request message is a processing request message that does not use a common file ;
The offline processing unit
When the timer interrupt signal for offline processing is notified from the operating system, it is checked whether the lock file is occupied if it is within the processing time zone by referring to the offline processing time zone table by the timer interruption time. Second occupancy check means for
A second timer setting means for setting a processable time zone in a timer by referring to an offline processable time zone table and starting a timer when the lock file is occupied;
And a third job processing means for performing a job process using the common file when the lock file is not occupied within the processable time zone of the offline processable time zone table. It is that <br/> be characterized by [0008]
The online exclusive weight avoidance device of the second invention is
In the first invention, the lock file is set from an online processing unit or an offline processing unit, and when the common file is used, “occupied” is displayed, and when the use of the common file is finished, the occupied display is released. It is comprised by.
[0009]
Furthermore, the online exclusive wait avoidance device of the third invention is
In the first invention, the first timer means activates a timer in order to avoid an exclusive wait on the online processing side when the common file is occupied when the processing request message uses the common file in the online processing unit. It is configured by releasing control once.
[0010]
Furthermore, the on-line exclusive wait avoidance device of the fourth invention is:
In the first invention, the offline processable time zone table is configured by setting in advance a time zone composed of a start time and an end time at which offline processing can be performed in order to reduce the influence on online processing.
[0011]
Furthermore, the online exclusive weight avoidance device of the fifth invention is
In the first or fourth invention, the second timer setting means refers to the offline processable time zone table when the common file is occupied or outside the range of the offline processable time zone. The start time of the earliest offline processable time zone is set to a timer value and the timer is started.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 1A shows an overall block diagram. FIG. 1B shows a block diagram of the online processing unit. FIG. 1C shows a block diagram of the offline processing unit.
[0014]
FIG. 2 is a flowchart showing an example of the operation of the online processing unit in the present embodiment.
[0015]
FIG. 3 is a flowchart showing an example of the operation of the offline processing unit in the present embodiment.
[0016]
FIG. 4 is a diagram showing an off-line processable time zone table referred to by the off-line processing unit in the present embodiment, and is a time zone composed of a start time and an end time avoiding a busy time zone of online processing.
[0017]
In FIG. 1, the electronic computer 1 is connected to a communication line 2 and a common file 6. The electronic computer 1 includes an operating system 3 (hereinafter referred to as OS), an online processing unit 4 and an offline processing unit 5.
[0018]
The online processing unit 4 includes a message distribution unit 41, an occupancy check unit 42, a timer set unit 43, and a business unit 44.
[0019]
The offline processing unit 5 includes a timer setting unit 51, an occupation check unit 52, a business unit 53, and an offline processable time zone table 54.
[0020]
The common file 6 includes a business file 161 to a business file n62 and an exclusive exclusive file lock file 63.
[0021]
In the online business, a processing request message from the communication line 2 is transferred from the OS 3 to the online processing unit 4 to be processed. The online processing unit 4 includes a message distribution unit 41 that distributes received messages, an occupation check unit 42 that checks whether the lock file 63 is occupied, and a timer that sets a timer when the lock file 63 is occupied It has a setting unit 43 and a business unit 44 that performs business processing.
[0022]
In the offline operation, a timer interrupt signal is passed from the OS 3 and the processing of the offline processing unit 5 is performed. The offline processing unit 5 includes a business unit 53 that performs business processing, an occupation check unit 52 that checks whether the lock file 63 is occupied, and a timer setting unit 51 that sets a timer when the lock file 63 is occupied. And have.
[0023]
Next, the operation of the online processing unit 4 according to the present embodiment will be described with reference to FIGS.
[0024]
The message type of the processing request message notified from the OS 3 includes a timeout message, a business 1 message that uses the common file 6, and a business 2 message that does not require the common file 6.
[0025]
In step 1, when a notification is received from the OS 3, a processing request message or a timeout message is acquired and the processing in step 2 is performed.
[0026]
In step 2, the message type of the acquired processing request message is checked. If it is a timeout message, the process of step 3 is performed. If the message is a service 1 message, the process of step 4 is performed. Process.
[0027]
Step 3 is a case where a time-out message is received, and since the lock file 63 is occupied by another business, the process of step 5 is performed to check the occupation of the lock file 63 again.
[0028]
In step 4, since the common file 6 is used when the notified processing request message is a business 1 message, the process of step 5 is performed to check the occupation of the lock file 63.
[0029]
Step 5 checks whether the lock file 63 is occupied. If it is not occupied, the process of step 6 is performed. If it is occupied, the process of step 9 is performed to set a timer.
[0030]
Step 6 is a case where the lock file 63 is being occupied when it is not occupied by another business, and the processing of Step 7 is performed.
[0031]
In step 7, the business 1 message notified using the common file 6 is processed, and the process in step 8 is performed.
[0032]
In step 8, since the use of the common file 6 is finished, the lock file 63 is released and the process of step 1 is performed to acquire the next processing request message.
[0033]
In step 9, since the lock file 63 is occupied, a predetermined timer value is set and the process of step 10 is performed.
[0034]
Step 10 timer activation to the operating system on the set timer value, the process proceeds to step 1 of the process for obtaining the next processing request message.
[0035]
In step 11, the business 2 message not using the common file 6 is notified to step 12.
[0036]
Step 12 performs the process of Step 1 in order to process the business 2 message and acquire the next processing request message.
[0037]
That is, online processing requests that do not use the common file 6 are continuously processed without generating processing waits.
[0038]
Next, the operation of the offline processing unit 5 of the present embodiment will be described with reference to FIG. 1, FIG. 3, and FIG.
[0039]
In the case of a system that updates the common file 6 used in online processing, the offline processing unit 5 sets an offline processing available time zone table 54 in advance.
[0040]
In step 20, when the offline processing unit 5 is activated, the activation time of the initial value is set to the timer value, and the process of step 21 is performed.
[0041]
In step 21, the timer is started with an initial value timer to wait for offline processing.
[0042]
In step 22, when a timer interrupt signal is notified from the OS 3, the interrupt time is acquired and the process of step 23 is performed.
[0043]
Step 23 checks whether the timer interrupt time is within the time zone range of the offline processable time zone table 54, and if it is within the range, the processing of step 24 is performed, and if the timer interrupt time is outside the time zone range, Step 28 is performed to set the timer.
[0044]
In step 24, it is checked whether the lock file 63 is occupied. If the lock file 63 is not occupied, the process of step 25 is performed. If it is occupied, the process of step 28 is performed to set a timer.
[0045]
In step 25, the lock file 63 is being occupied and the process of step 26 is performed for offline processing.
[0046]
Step 26 performs the processing of step 27 when the offline processing is completed using the common file 6 and is completed.
[0047]
In step 27, since the use of the common file 6 is finished, the display of the lock file 63 being occupied is canceled and the offline processing is finished.
[0048]
Step 28 refers to the offline processable time zone table 54 and sets the start time of the earliest offline processable time zone to the timer interrupt time to the timer value and performs the process of step 29.
[0049]
Step 29 timer activation to the operating system at the set timer value, when the wait off-line processing and the interrupt signal is notified proceeds to step 22.
[0050]
As described above, the combination of one online processing unit and one offline processing unit has been described, but an embodiment in which a plurality of online processing units and a plurality of offline processing units are combined can also be applied. An online exclusive weight avoidance device that minimizes the influence of exclusive weights is provided.
[0051]
【The invention's effect】
As described above, the first effect of the present invention is that a waiting state for occupying a common file can be avoided. As a result, online work that does not use a common file has an effect that it can be executed while avoiding exclusive waits.
[0052]
The reason is that the timer is set in order to escape control from the waiting state for exclusive processing.
[0053]
The second effect of the present invention has an effect that, even if the offline processing is erroneously activated, the activation time is limited, so that the influence on the online processing is small.
[0054]
This is because the offline processing time zone can be selected by providing the offline processing time zone table.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. (B) shows the block diagram of an online process part. (C) shows the block diagram of an offline process part.
FIG. 2 is a flowchart showing an example of the operation of an online processing unit in the present embodiment.
FIG. 3 is a flowchart showing an example of the operation of an offline processing unit in the present embodiment.
FIG. 4 is a diagram showing an off-line processable time zone table referred to by the off-line processing unit in the present embodiment.
FIG. 5 is a block diagram showing a conventional embodiment.
[Explanation of symbols]
1 Computer 2 Communication line 3 OS
4 Online processing unit 41 Message distribution unit 42 Occupancy check unit 43 Timer set unit 44 Business unit 5 Offline processing unit 51 Timer set unit 52 Occupancy check unit 53 Business unit 54 Offline processable time zone table 6 Common file 61 Business file 1
62 Business file n
63 Lock file 100 Program A
101 Program B
102 Lock file R
103 File 1
104 file n

Claims (5)

And online processing unit, an online exclusive weight avoidance device for organic and off-line processing unit, and a common file,
The common file is
When a common file is used, it has a lock file that is displayed as occupied,
The online processing unit,
First occupancy check means for checking whether the lock file is occupied when the processing request message notified from the operating system is a processing request message or a timeout message using a common file;
First timer setting means for setting a timer and starting a timer when the lock file is occupied;
If the lock file is not occupied, a first business process that displays the lock file being occupied, processes the processing request message using the common file, and releases the lock file when the process ends. Means ,
A second business processing means for processing the processing request message immediately when the processing request message notified from the operating system is a processing request message not using a common file;
The offline processing unit
When the timer interrupt signal for offline processing is notified from the operating system, it is checked whether the lock file is occupied if it is within the processing time zone by referring to the offline processing time zone table by the timer interruption time. Second occupancy check means for
A second timer setting means for setting a processable time zone in a timer by referring to an offline processable time zone table and starting a timer when the lock file is occupied;
And a third business processing means for performing business processing using the common file when the lock file is not occupied within the processing time zone of the offline processing time zone table. An on-line exclusive weight avoidance device.   The lock file is set from an online processing unit or an offline processing unit, and when the common file is used, “occupied” is displayed, and when the use of the common file is terminated, the occupied display is canceled. Item 2. The online exclusive wait avoidance method according to Item 1. The first timer means starts a timer and avoids an exclusive wait on the online processing side if the common file is occupied when the processing request message uses the common file in the online processing unit. The online exclusive weight avoidance apparatus according to claim 1. 2. The online exclusive wait avoidance device according to claim 1, wherein the offline processable time zone table is preset with a time zone including a start time and an end time at which offline processing is possible.   In the second timer setting step, when the common file is occupied or outside the range of the offline processable time zone, the offline processable time zone table is referred to and the earliest offline processable time is set at the timer interruption time. 5. The online exclusive wait avoiding method according to claim 1, wherein the start time of the band is set to a timer value and the timer is started.

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