JPH04151736A - Computer system - Google Patents

Abstract

PURPOSE:To facilitate a counter measure to the data processing request of a data processing request task while leaving simple the construction of a data processing execution task by providing a selection switch which selects either data transferred from the data processing request task or data received from a data informing equipment, and transfers the data to the data processing execution task. CONSTITUTION:The data processing request from a data processing request task 8 is fetched in a data transmitting and receiving system 6 in the same form with the data fetched from a transmitting path 3, the data are successively stored in the inside of the data transmitting and receiving system 6 as well as the data fetched from the transmitting path 3, and transferred to a data processing execution task 7, by a selection switch 5. Thus, it is possible to facilitate a counter measure to the data processing request of the data processing request task 8, while leaving simple the construction of the data processing execution task 7.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a computer system that performs data communication,
This relates to a data transmission/reception function that passes data to a data processing execution task.

(Prior Art) Fig. 4 is a block diagram showing a conventional example of a computer system that performs data communication.In the figure, (1) is a computer system, and (2) is a party with which this computer system (1) communicates data. The data communication device (3) is a transmission path, and the computer system (1) has an interface device (4) with the transmission path (3), and a data processing execution task (7) created by the user to send and receive data. A data transmission and reception system (6) that provides functions, and a data transmission and reception system (6) that transmits data from a transmission path (3) created by the user.
It has a data processing execution task (7) that receives the data and performs processing according to the data. Note that the form of the data transmission line is point-to-point.
Furthermore, the computer system (1) is multitasking and can simultaneously execute multiple tasks created by the user.

The operation related to the above configuration will be explained. Data transmitted from the data communication equipment (2) is sent to the transmission/reception system (6) via the transmission line (3) and the transmission line interface device (4).
), and the data that is taken into the transmission/reception system (6) is passed to the data processing execution task (7) as shown by the arrow, and the data processing execution task (7) Execute processing.

In this case, the transfer of data from the sending/receiving system (6) to the data processing execution task (7) specifically involves receiving data using a transmission path provided within the computer system (1). This is accomplished by passing data, passing data using a memory using a semiconductor memory, and passing data using a data file.

FIG. 5 is a block diagram showing details of the data reception function of the data transmission and reception system (6) that provides the data transmission and reception function to the data processing execution task (7). The data stored in the data buffer (6a) is sequentially stored as shown by the arrow immediately after the data already stored in the data buffer (6a) (the shaded area in the figure), and the data stored in the data buffer (6a) is According to the data receiving means of the processing execution task (A), the data is sequentially passed to the data processing execution task (7) in the direction of an arrow, starting from the first one.

FIG. 6 shows an example of a flowchart of the data processing execution task (7) created by the user. Transmission/reception system (6
) receives data from transmission path (3). here,
Data receiving means type A is one of the data receiving means, and when the data processing execution task (7) or the data receiving means is executed, the data transmitting/receiving system (6) stores data in the data buffer (6a). If the data cannot be passed, the data is fetched from the data transmitting/receiving system (6) or the transmission line (3) and the data buffer (6a)
), and once the data is stored in the data buffer (6a), the data is passed to the data processing execution task (7). Next, in step S62, the receiver performs predetermined data processing on the received data.

Next, in the computer system (1) having such a data transmission/reception function, the data processing execution task (7) performs the same data processing corresponding to various data, and the data from the transmission path (3). We will explain the cases where execution is necessary due to different factors. In such a case, the data processing part is already equipped with the data processing execution task (7), so
It is better to have data processing performed by the data processing execution task (7) in terms of efficiency.

FIG. 7 is an example of a block diagram of the computer system (1) in such a case. In the figure, the same reference numerals as in FIG. 4 indicate the same elements. In the figure, (8) is a data processing request task that requests data processing to the data processing execution task (A) by the inter-task communication means when a factor that requires data processing created by the user occurs.

Further, FIG. 8 is an example of a flowchart of the data processing request task (8).
First, in step 581, the process waits for data processing or a necessary factor to occur. If a factor occurs, then in step 582, a request for data processing is made to the data processing execution task (7) by the inter-task communication means.

That is, in the configuration shown in FIG. 7, the data processing execution task (7) receives data passed from the data transmission/reception system (6) by the data receiving means (step 561 in FIG. 6), and receives data from the data processing request task (8) between tasks. ways to contact(
Both data processing requests made by step 582) in FIG. 8 must be processed.

Therefore, it is necessary to constantly monitor both whether data is transferred by the data transmission/reception system (6) and whether there is a request from the data processing request task (8).

FIG. 9 is an example of a flowchart of such a data processing execution task (7). Data processing execution task (7)
Then, in step 591, data receiving means type B processing is performed. Here, the data receiving means type B is
It is one of the data receiving means and is a data processing execution task (
When 7) performs the data receiving means, if the data transmitting/receiving system (6) cannot pass the data stored in the data buffer (6a), it stores the data without waiting. The data processing execution task (7
), but does not pass the data. Therefore, if the data transmission/reception system (6) stores data in the data buffer (6a), the data processing execution task (7) receives and receives data from the transmission path (3) and stores it in the data buffer (6a). If the data is not stored, we will not accept the data even if we are informed.

Next, in step S92, it is checked whether data has been received by the data receiving means type B.

If the data is not received, the process advances to step S95, where the data receiving means executes data processing on the received data, and repeats from step 591.

If the data is not received, proceed to step S93;
Processes the means of communication between tasks. Next, step S95
At step 59, the inter-task communication means checks whether the data processing request has been made from the data processing request task (8). If the data processing request has been made, step 59
5, the data processing requested by the inter-task communication means is executed, and the process returns to step 591. If no data processing request is made, the process repeats from step 591.

As described above, the structure of the data processing execution task (7) is much more complicated than before.

[Problem to be solved by the invention]

The data transmission and reception functions in conventional computer systems are performed as described above, and in the case of the configuration shown in Figure 7, the data processing execution task (
The structure of 7) becomes complicated. In addition, in the case of a data transmitting/receiving system (6) that does not have a data receiving means such as the data receiving means type B (step 591 in FIG. 9) described above, the data processing execution task (7) as described above is used. ) structure becomes impossible, and the user has to create two data processing execution tasks with the same data processing part.

This invention was made in order to solve the above-mentioned problems, and it is possible to respond to a data processing request from a data processing request task by simply executing data processing on data passed from a data processing execution task or a data transmission/reception system. It is an object of the present invention to provide a computer system having a data transmission/reception function that can also correspond to the following.

(Means for Solving the Problems) A computer system according to the present invention includes a data transmission/reception system that passes data received from a data communication device via a transmission path to a data processing execution task. It is equipped with a selection switch that selects either the passed data or the data received via the transmission line from the data communication device and passes it to the data processing execution task.

(Function) In this invention, the selection switch imports the data processing request from the data processing request task into the data transmission/reception system in the same format as the data taken in from the transmission path, and the data is made to be the same as the data taken in from the transmission path. By sequentially storing the data in the data transmitting/receiving system and passing it to the data processing execution task, the structure of the data processing execution task remains simple and it is possible to respond to the data processing request of the data processing request task.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. In the figure, the same reference numerals as in FIG. 7 indicate the same elements. (5) is a selection switch that selects whether the data simulation manual means described later in the data processing request task (8) is valid or invalid; if it is valid, the data The data processing execution task (7) is transferred from the data processing request task (8) through the data transmission/reception system (6) by simulated human power means.
) so that data processing requests are passed to

That is, FIG. 2 is a block diagram showing details of the data transmission and reception function of the data transmission and reception system (6) that controls the flow of data to the data processing execution task (7) based on the selection of the selection switch (5). , the same reference numerals as in FIG. 5 indicate the same elements.

In the figure, (5a) and (5b) indicate the contacts of the selection switch (5) that operate in conjunction with each other, and when the selection switch (5) is in a valid selection, the contact (5a) is ON;
The contact (5b) turns OFF, and the data processing request task (
The data from 8) is manually input to the data buffer (6a), and the contact (5a) is turned OFF when invalid selection is made.
, the contact (5b) is turned on, and the data received from the data communication device (2) of the communication partner is inputted into the data buffer (6a). In addition, the contact point (5
a) and (5b) are the states at the time of valid selection.

Further, FIG. 3 shows a flowchart of the data processing request task (8), which corresponds to step 581 or step 531 shown in FIG. 8 of the conventional example. Instead, data simulation is performed using manual means. Note that the flowchart of the data processing execution task (7) in FIG. 6 is the same as that in FIG.

Therefore, in FIG. 1, data processing request task (8)
When making a data processing request to the data processing execution task (7), the data processing request is processed by the data 288 manual means (step 532 in Figure 3) in the same format as the data taken in from the transmission path (3). The transmission and reception system (6
), and the data passed to the transmission/reception system (6) by this data simulation input means is handled in the same way as the data on the transmission path (3) within the data transmission/reception system (6), and the data is passed to the transmission/reception system (6) by the data simulation input means. (Step 561 in Figure 6)
When the data processing execution task (7) performs the processing of
Similarly to the data on the transmission line (3), the data buffer (6a
). The data processing execution task (7) executes the data receiving means (step 561 in FIG.
), the data on the transmission line (3) and the data processing request task (8) are processed.
) can respond to data processing requests from

That is, in FIG. 2, when the contact (5b) is ON, the data taken in from the transmission line (3) is already stored in the internal data buffer (6a), as in the conventional case. The data is sequentially stored immediately after the data as shown by the arrow, and when the contact (5b) is OFF, the data taken in from the transmission line (3) is ignored and the data buffer (6a) is stored immediately after the data.
) is not stored.

On the other hand, from the data processing request task (8), data 2Xm
The data processing request data passed to the data transmitting/receiving system (6) through the processing of the human power means (step 532 in Figure 3) is the same as the data taken in from the transmission line (3) when the contact (5a) is ON. and data buffer (6a
) is stored immediately after the data that has already been stored, as shown by the arrow. At this time, since the contact (5b) is OFF, the data taken in from the transmission line (3) is ignored and is not stored in the data buffer (6a).

In addition, when the contact point (5a) is OFF, the data simulation manual means (step 53 in FIG. 3) is sent from the data processing request task (8).
The data of the data processing request passed to the data transmitting/receiving system (6) through the process 2) is ignored and is not stored in the data buffer (6a). At this time, since the contact (5b) is ON, only the data taken in from the transmission line (3) is stored in the data buffer (6a).

Thereafter, the data stored in the data buffer (6a) is transferred to the data receiving means (step S6 in FIG. 6) as before.
) by performing the data processing execution task (7),
Starting from the tip, the data is sequentially passed to the data processing execution task (7) as shown by the arrow.

As described above, according to this embodiment, the structure of the data processing execution task (Fig. 6) remains the same as before, and the data processing request of the data processing request task (8) is responded to by appropriately switching the selection switch. be able to.

Note that although the computer system (1) is multitasking in the above embodiment, it does not necessarily need to be multitasking. Further, in the above embodiment, the selection switch (5) is used to select whether to enable or disable the data simulation input means, but instead of using the switch, the CRT display may be used to select whether to enable or disable the data simulation input means. Furthermore, in the above embodiment, one selection switch (5) selects 0N10FF of the data flow from the data processing request task (8) by the data simulation human means and 0N10FF of the data flow taken in from the transmission path (3). Although this was done in conjunction with each other, separate switches may be provided for each so that they can be performed independently. Furthermore, in the above embodiment, the selection switch (
5) and the data flow '0N10FF have been described using contact points, but they may also be constructed using semiconductor logic.

〔Effect of the invention〕

As described above, according to the present invention, the data passed from the data processing request task is handled in the same way as the data from the transmission path, so the data processing request task treats the data processing request as data on the transmission path. By passing the data to the data transmitting/receiving system in a similar format, the structure of the data processing execution task can be kept simple while responding to the data processing request of the data processing request task.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a computer system according to an embodiment of the present invention, FIG. 2 is a detailed block diagram of a data transmission/reception function, and FIG. 3 is a flowchart of a data processing request task.
Fig. 4 is a block diagram of an example of a conventional computer system, Fig. 5 is a detailed block diagram of a conventional data transmission/reception function, and Fig. 6 is a block diagram of an example of a conventional computer system.
Figure 7 is a flowchart of a data processing execution task, Figure 7 is a block diagram of a conventional computer system when there is a data processing request task, Figure 8 is a flowchart of a conventional data processing request task, and Figure 9 is a data processing FIG. 3 is a flowchart diagram of a conventional data processing execution task when there is a request task. (1)... Computer system, (2)... Data communication, (3)... Transmission line, 5)... Selection switch, 5a), (5b)... Interlocking contact of selection switch,
6)...Data transmission/reception system, 6a)...Data buffer, 7)...Data processing execution task,...Data processing request task. In addition, in each figure, the same reference numerals indicate the same or equivalent parts of the schematic diagram. Relationship with computer system 3° amendment case Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo
Name (601) Mitsubishi Electric Corporation Representative Moriya Shiki 4゜5゜

Claims (1)

[Claims] In a computer system that has a data transmission/reception system that passes data received from a data communication device via a transmission path to a data processing execution task, the data passed from the data processing request task and the data received from the data communication device via the transmission path A computer system comprising a selection switch that selects one of the following and passes it to a data processing execution task.