JPH06282352A - Time interval informing system - Google Patents

Abstract

PURPOSE:To make it possible to highly accurately report time interval passage after the lapse of a requested time interval independently of the processing speed of a computer. CONSTITUTION:At the time of initializing the computer, a measuring means 1 practically measures an execution time of an instruction sequence performed by a reception means 4 and a time interval request setting means 14, i.e., a time from the reception of a time interval information request up to the end of time interval setting processing. The measured time is stored in a processing time storing area 3 by a processing time setting means 2. When a means 4 receives the time interval informing request from a user task 11 after the initialization, the means 14 finds out time for reporting time interval passage based upon the request receiving time, the time interval included in the request and the time stored in the area 3 and sets up the found time in a time interval request storing area 9. When it arrives at the time set up in the area 9, a time interval passage informing means 10 reports the time interval passage to the user task 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time interval notification method in a computer system, and more particularly, to a time interval notification method after a required time interval elapses regardless of the processing speed of the computer system.
The present invention relates to a time interval notification method capable of notifying time interval elapse.

[0002]

2. Description of the Related Art After a time interval requested by a time interval notification request (a time interval after the setting process of the time interval notification request in the computer system is completed) has elapsed, a time interval elapse notification is sent to the request source. The practice is conventional.

By the way, in the conventional time interval notification system of this type, the computer system performs the following processing.

Upon receiving the time interval notification request, the computer system first acquires the time t1 at that time. Next, the computer system adds the time interval Δt2 requested by the time interval notification request and the setting processing time Δt3 to the time t1 to notify the time interval elapsed notification time t4.
= T1 + Δt2 + Δt3 is calculated. Thereafter, the computer system performs a time interval notification request setting process of storing the time interval elapsed notification time t4 in the time interval request storage area. Then, when the time interval elapsed notification time t4 stored in the time interval request storage area is reached, the computer system notifies the request source of the time interval elapsed.

Here, the setting processing time Δt3 is the time required from the reception of the time interval setting request to the storage of the time interval elapsed notification time t4 in the time interval request storage area, which is conventionally uniquely determined by a program. It was

[0006]

As described above, conventionally, the setting processing time from the reception of the time interval notification request to the completion of the setting processing is uniquely set by the program, so that it depends on the processing speed of the computer. There was a problem that the time interval requested by the requester and the actual time interval may be different from each other. For example, if the setting processing time is set according to a low-speed computer system, the higher the speed of the computer system, the more the time interval requested by the requester and the actual time interval are different. .

It is an object of the present invention to provide a time interval notification method capable of issuing a time interval notification after a required time interval has elapsed regardless of the processing speed of a computer system.

[0008]

In order to achieve the above object, the present invention sets a setting processing time from the acceptance of a time interval notification request to the end of the time interval notification request setting processing at the time of initialization of a computer system. Measuring means for measuring, and accepting means for accepting a time interval notification request for requesting a time interval elapse notification after a specified time interval after completion of setting processing of the time interval notification request after initialization of the computer system, and the accepting means Time at which the means receives the time interval notification request, the time interval designated by the time interval notification request accepted by the accepting means, and the time at which the time interval elapse notification is issued based on the setting processing time measured by the measuring means Time interval request setting means for obtaining the interval elapsed notification time and storing it in the time interval request storage area, and the current time is the time interval request storage area By the set time interval elapses notification time is obtained by providing a time interval has elapsed notifying means for performing a time interval elapsed notification.

[0009]

When the computer system is initialized, the setting processing time from the acceptance of the time interval notification request by the measuring means to the end of the time interval notification request setting processing is actually measured.

After the initialization of the computer system, if there is a time interval notification request, the acceptance means accepts it.

The time interval request setting means, based on the time when the measuring means receives the time interval notification request, the setting processing time measured by the measuring means, and the time interval designated by the time interval notification request, The time interval elapse notification time at which the notification is made is obtained and stored in the time interval request storage area.

When the current time reaches the time interval elapsed notification time set in the time interval request storage area, the time interval elapsed notification means notifies the request source of the time interval elapsed.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, in which a measuring unit 1, a processing time setting unit 2, a processing time storage area 3, a receiving unit 4, a setting start time reading unit 5, and a processing unit. The time acquisition unit 6, the notification time acquisition unit 7, the time interval request setting unit 8, the time interval request storage area 9, the time interval elapsed notification unit 10, the user task 11, the semaphore 12, and the task queue 13 It consists of and. The setting start time reading unit 5, the processing time acquisition unit 6, the notification time acquisition unit 7, and the time interval request setting unit 8 constitute a time interval request setting unit 14.

The measuring means 1 has a function of measuring the processing time of the instruction sequence executed by the receiving means 4, the setting start time reading section 5, the processing time acquisition section 6, the notification time acquisition section 7, and the time interval request setting section 8. .

The processing time setting means 2 has a function of storing the processing time measured by the measuring means 1 in the processing time storage area 3 as a set processing time.

The accepting means 4 has a function of accepting the time interval notification request output by the user task 11 and activating the setting start time reading section 5.

The setting start time reading section 5 has a function of reading the present time from a clock (not shown).

The processing time acquisition unit 6 has a function of acquiring the set processing time set in the processing time storage area 3.

The notification time acquisition unit 7 has a function of calculating a time interval elapsed notification time at which a time interval elapsed notification is given.

The time interval request setting unit 8 is the notification time acquisition unit 7
It has a function of storing the time interval elapsed notification time calculated by the above in the time interval request storage area 9.

The time interval elapse notifying means 10 has a function of notifying the time interval elapse when the current time becomes the time interval elapse notification time stored in the time interval request storage area 9.

FIG. 2 is a flow chart showing a processing example of the measuring means 1,
3 is a flow chart showing a processing example of the notification time acquisition unit 7, FIG. 4 is a flow chart showing a processing example of the time interval request setting unit 8, and FIG. 5 is a flow chart showing a processing example of the time interval progress notifying means 10.
The operation of this embodiment will be described below with reference to the drawings.

First, the operation at the time of initialization of the computer system will be described.

At the time of initialization of the computer system, the measuring means 1 as shown in the flow chart of FIG.
The current time is read from the clock, and in the next step S22, the instruction sequence executed by the accepting unit 4, the setting start time reading unit 5, the processing time acquisition unit 6, the notification time acquisition unit 7, and the time interval request setting unit 8 is set. Run.

After that, the measuring means 1 reads out the present time from the clock in step S23, and further in step S2.
In step 4, the difference between the current time read in step S21 and the current time read in step S23 is calculated. That is, the measuring means 1 measures the time from when the receiving means 4 starts the processing to when the processing of the time interval request setting unit 8 ends.

When the processing of the measuring means 1 is completed, the processing time setting means 2 stores the time measured by the measuring means 1 in the processing time storage area 3 as the set processing time.

Next, the operation when the time interval notification request is output from the user task 11 after the initialization of the computer system will be described.

When the user task 11 wants to receive the notification of the time interval elapse after the elapse of the predetermined time interval ΔT2 after the setting process of the time interval setting request in the computer system is completed,
The time interval ΔT2, the semaphore address indicating the semaphore to be used (in this example, the semaphore 12 is assumed), and the time interval notification request including the semaphore message are output. Further, the user task 11 performs the P operation on the semaphore 12, decrements the semaphore count by 1, and connects the task name of the user task 11 to the task queue 13 corresponding to the semaphore 12.

The time interval notification request from the user task 11 is accepted by the accepting means 4, and when the accepting means 4 accepts the time interval notification request, the setting start time reading section 5 is activated.

When the setting start time reading unit 5 is activated, the processing time acquisition unit 6 is activated after reading the current time T1 from the clock.

When the processing time acquisition unit 6 is activated, it acquires the set processing time ΔT3 set in the processing time storage area 3 and then activates the notification time acquisition unit 7.

When the notification time acquisition unit 7 is activated, as shown in the flowchart of FIG. 3, first, in step S31,
The time interval ΔT2 included in the time interval notification request accepted by the accepting unit 4 is acquired, and in the next step S32, the time interval acquired in step S31 at the current time T1 read by the setting start time reading unit 5 Add ΔT2.

Further, the notification time acquisition unit 7 operates in step S33.
At time T1 + ΔT2 calculated in step S32
By adding the set processing time ΔT3 acquired by the processing time acquisition unit 6 to, the time interval elapsed notification time T4 = T1 +
ΔT2 + ΔT3 is calculated, and then the time interval request setting unit 8
To start.

When the time interval request setting unit 8 is activated, as shown in the flow chart of FIG. 4, first, in step S41, the time interval request notification time T4 acquired by the notification time acquisition unit 7 is requested as the time interval request. The semaphore address (indicating the semaphore 12) included in the time interval notification request accepted by the accepting unit 4 is stored in the time interval request storage area 9 in step S42. In step S43, the semaphore message included in the time interval notification request is stored in the time interval request storage area 9.

When the current time reaches the time interval lapse notification time T4 stored in the time interval request storage area 9, the time interval lapse notification means 10 first in step S51, as shown in the flow chart of FIG. Time interval request storage area 9
The semaphore address indicating the semaphore 12 stored in is acquired, and in step S52, the semaphore message stored in the time interval request storage area 9 is acquired.

After that, in step S53, the time interval elapse notifying means 10 performs the V operation to increment the semaphore counter of the semaphore 12 by one, and at the same time, to the user task 11 indicated by the task name connected to the task queue 13.
Notify the time interval including the semaphore message.

[0038]

As described above, according to the present invention, when the computer system is initialized, the setting processing time from the acceptance of the time interval notification request to the end of the time interval notification request setting processing is actually measured. Since the measurement means is provided, the time interval elapsed notification time is obtained based on the setting processing time measured by the measurement means, the time interval notification request acceptance time, and the time interval specified by the time interval notification request. In addition, regardless of the processing speed of the computer system, there is an effect that the time interval elapse notification can be given when the requested time interval has elapsed.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing example of the measuring unit 1.

FIG. 3 is a flowchart showing a processing example of a notification time acquisition unit 7.

FIG. 4 is a flowchart showing a processing example of a time interval request setting unit 8.

FIG. 5 is a flowchart showing a processing example of the time interval progress notifying means 10.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Measuring means 2 ... Processing time setting means 3 ... Processing time storage area 4 ... Receiving means 5 ... Setting start time reading part 6 ... Processing time acquisition part 7 ... Notification time acquisition part 8 ... Time interval request setting part 9 ... Time interval Request storage area 10 ... Time interval elapsed notification means 11 ... User task 12 ... Semaphore 13 ... Task queue 14 ... Time interval request setting means

Claims (3)

[Claims] 1. At the time of initialization of a computer system, a measuring means for measuring a setting processing time from the reception of the time interval notification request to the end of the setting processing of the time interval notification request, and after initialization of the computer system, Receiving means for receiving a time interval notification request for requesting a time interval elapse notification after a specified time interval after the setting processing of the time interval notification request is finished; time when the receiving means receives the time interval notification request; The time interval elapse notification time at which the time interval elapse notification is performed based on the time interval specified by the time interval notification request accepted by the means and the setting processing time measured by the measuring means, and stored in the time interval request storage area. The time interval request setting means, and the current time becomes the time interval elapsed notification time set in the time interval request storage area. Ri, time interval notification method being characterized in that a time interval has elapsed notifying means for performing a time interval elapsed notification. 2. The time interval request setting means adds the time interval designated by the time interval notification request and the setting processing time measured by the measuring means to the time when the receiving means receives the time interval notification request. By doing
The time interval notification method according to claim 1, wherein the time interval notification time is calculated. 3. The measuring means executes a sequence of instructions executed by the accepting means and the time interval request setting means, from receiving the time interval notification request to ending the time interval notification request setting process. The time interval notification method according to claim 1 or 2, wherein the set processing time is measured.