JPH04369752A - Schedule control system - Google Patents

Abstract

PURPOSE:To effectively use memory resource which is required at the time of transmitting a telegram and to freely change the order of the schedule of an event. CONSTITUTION:A queueing means 6 queues a request from an application program 1 and terminals 11-1, 11-2 to 11-m and completion against the request. An execution level setting means 7 queues the queueing event in a queue in the designated execution level. A queueing release means 5 releases queueing when there is the request or the request completes. A released event execution means 4 executes the released queueing event from the event whose execution level is high.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a schedule control system, and more particularly to a schedule control system for controlling requests from application programs and terminals, or waiting events for waiting for completion of requests.

0002

[Prior Art] Conventional schedule control methods cannot specify the execution level when making a meeting.
When there are multiple events for which waiting has been canceled, the events are always executed in the order in which the waiting was performed.

0003

[Problems to be Solved by the Invention] The conventional schedule control method described above has the disadvantage that the following problems occur because it is not possible to specify the execution level of the waiting event when making a meeting. ing.

[0004] That is, when the terminal side temporarily restricts the input of messages from an application program and a request to send a message comes from the application program, the communication control program suspends the request to send the message and the terminal The message is being sent after the user's message input restrictions have been lifted.

[0005] The processing of the communication control program at this time is such that when the application program requests transmission of a message,
Due to the terminal side restricting the input of messages, a meeting is performed using a waiting method, and the waiting is canceled for an event where the terminal side is waiting for the input restriction to be lifted when the input restriction on the terminal side is lifted. The waiting is canceled for the number of events using the means, and the canceled event execution means is used to execute the canceled event. The executed event restarts the interrupted process, sends the message to the terminal, and then waits for the completion of the transmission using the waiting means.

[0006] However, since the waiting event for waiting for transmission completion is chained to the end of the waiting event queue, even if the transmission is completed immediately, the waiting event for waiting for the input restriction on the terminal side that has been canceled from waiting is still held. Waiting events waiting for transmission completion are not executed until all are executed.

[0007] Therefore, the memory resources required when transmitting a message are equal to the number of waiting events waiting for the release of input restrictions on the terminal side (however, the memory resources necessary when transmitting a message are released after the transmission is completed). , memory efficiency deteriorates. Furthermore, even if it is desired to restart the process immediately after the transmission is completed, the process efficiency will deteriorate because it is necessary to wait until all the waiting events waiting for the release of input restrictions are executed.

[0008]

Means for Solving the Problems The schedule control method of the present invention is a schedule control method for a computer system in which an application program runs a communication control program that enables communication with a plurality of terminals. A waiting means for waiting for a request or completion of a request from the application program and the terminal when communicating with a terminal, and queuing the waiting event in a waiting queue of a specified execution level when waiting by the waiting means. an execution level setting means for setting a waiting event to be canceled by the waiting means; and a canceled event execution means for executing the event starting from the event with the highest value.

[0009]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the schedule control method of the present invention. As shown in FIG. 1, from the application program 1 to the terminals 11-1, 11-
2,...When a request to send a message is received to 11-m, if a message input restriction notification has already been received from the terminal 11-i, the communication control program 2 interrupts the message sending process. , uses the waiting means 6 to wait for the release of the input restriction of the terminal 11-i. At that time, the execution level setting means 7 is used to set input restriction release wait events 10-1, 10-.
2,...10-k is queued at a lower level of the waiting event queue 8 at the execution level (0).
, (1),...(n).

[0011] Then, when the notification of cancellation of the message input restriction is received from the terminal 11-i, the communication control program 2 uses the waiting canceling means 5 to clear the waiting event queue 8.
10-1, 10
-2, . . . 10-k are all set to be canceled.

Further, after the waiting canceling means 5 searches for all events queued in the waiting event queue 8, the input restriction cancellation waiting event 10-1, whose waiting is canceled using the canceled event executing means 4, 10-2, . . . 10-k are executed to restart the interrupted process of transmitting the message to the terminal 11-i. However, at this time, the canceled event execution means 4 executes the input restriction cancellation waiting events 10-1, 10-2,...10-k.
If there is a canceled event with a higher execution level, the higher level event is executed with priority.

Therefore, in the restarted message transmission process, the message is also transmitted to the terminal 11-i, and the waiting means 6 waits for the completion of the transmission. At that time, using the execution level setting means 7, the message transmission completion waiting event 9 is queued in the waiting event queue 8 at a higher level than the input restriction release waiting events 10-1, 10-2, ... 10-k. Specify the run level so that After that, when the transmission of the message is completed, the waiting for the message transmission completion waiting event 9 is canceled using the waiting canceling means 5, and the canceled event is executed using the canceled event executing means 4, so that the waiting event is Cue 8
Input restriction release waiting events 10-1, 10-2, ... 10-, which are waiting to be executed after being released from waiting.
Even if k remains, message transmission completion wait event 9 has a higher execution level and is therefore executed first.

[0014]

[Effects of the Invention] As explained above, the schedule control method of the present invention allows the execution level of the waiting event to be specified when the waiting means makes a meeting. By specifying an execution level higher than the execution level of the waiting event for message transmission, the waiting event for waiting for the message transmission to be completed will be executed when the message transmission is completed, and the memory resources required when transmitting the message will be enabled. It has the effect of being usable. Furthermore, by allowing a plurality of execution levels to be set, it is possible to freely change the order of event schedules.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a schedule control method of the present invention.

[Explanation of symbols]

1 Application program 2 Communication control program 3 Schedule control 4 Canceled event execution means 5 Waiting cancellation means 6 Waiting means 7 Execution level setting means 8 Waiting event queue 9 Message transmission completion waiting event 10-1, 10-2, ~10-k Input restriction release waiting event

Claims (1)

[Claims] 1. In a schedule control method for a computer system in which an application program runs a communication control program that enables communication with a plurality of terminals, when the communication control program communicates with the terminal, the application program and the terminal Waiting means for waiting for a request or completion of a request from the application program; execution level setting means for queuing a waiting event in a waiting queue of a specified execution level when the waiting means waits for the request; a waiting canceling means for canceling the waiting by the waiting means when a request from a terminal or a completion of the request comes; and a canceled event executing means for causing the waiting event canceled by the waiting canceling means to be executed starting from an event with a higher execution level. A schedule control method characterized in that, by having a schedule control method, an execution level of a waiting event can be specified when making a meeting.