JPH0477040A - Communication processing unit - Google Patents

Abstract

PURPOSE:To quicken the communication processing by executing the communication processing corresponding to a priority event when an occurred event is the priority event and setting the priority event to be processed next with priority dynamically after the end of the execution. CONSTITUTION:When an event is a priority event, a relevant entry stored in a communication processing module entry storage area e3 is called and then a priority communication processing module t1 of the entry is called. On the other hand, when the event is not the priority event, a communication processing retrieval module (d) is called and a communication processing module t2 or t3 is called based on an occurred event and a current communication state stored in an communication state storage area e2. When the called communication module executes the communication processing and the communication processing is terminated, the communication state at that time is stored in the communication state storage area e2 and the priority event corresponding to the communication processing to be processed with priority is set and stored in a priority event storage area el.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication processing device having a protocol processing function.

[Prior Art] In a communication processing device that can centrally determine a protocol processing method according to an event that occurs and the communication state at that time, communication processing that is activated in response to an event that occurs in a transmitting/receiving communication module is used. When executed, it is configured to operate as follows.

That is, either the current communication state is checked, an event that occurs in that communication state is checked, and the corresponding communication processing is executed, or the communication state at the time the event occurs is checked and the event that occurred during the processing of that communication state is checked. The system is configured to inspect events and perform corresponding communication processing.

[Problem to be solved by the invention] In such conventional communication processing and devices, communication status and events are checked separately in the flow of processing, so it is not necessary to check all events in a certain communication status. is born. For example, even when performing communication processing based on a normal sequence, it is necessary to check for abnormal events.

Therefore, it takes a long time to call the communication processing module, making it impossible to execute communication processing at high speed.

Furthermore, in conventional communication processing devices, events and communication status are inspected in a predetermined order, so there is always a time difference between the first event inspected and the last event inspected. After that, it takes a long time to start the communication process, and as a result, the communication process cannot be executed at high speed.

Therefore, an object of the present invention is to provide a communication processing device that can execute communication processing at higher speed.

[Means for Solving the Problems] The gist of the present invention for achieving the above-mentioned object is to provide a data receiving means for receiving data from a communication channel, and an event generating means for generating an event in response to data received by the data receiving means. and an identification means for identifying whether the event generated by the event generating means is a set priority event, and if the generated event is the above-mentioned priority event, executes communication processing corresponding to this priority event. and a setting means for dynamically setting a priority event to be processed next after the execution of this communication processing is completed.

[Operation] When the data receiving means receives data from the communication channel, it checks whether the data is valid for communication processing, and if it is valid, it passes the data to the event generating means. The event generating means generates an event depending on the type of the received data. The identification means identifies whether or not the event that has occurred is a set priority event. If the event is a priority event, the execution means executes a preset communication process corresponding to this priority event.

If the event that has occurred is not a set priority event, the event to be executed is searched for and executed based on the current communication state and the event that has occurred. After executing this communication process, a priority event to be processed next is dynamically set.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a communication processing device of the present invention.

In the figure, a indicates a communication module connected to a communication path and for transmitting and receiving data via this communication path. An event control module b is connected to this communication module a. The event control module b receives and receives received data from the communication module a at the time of reception, and generates an event. The communication module a corresponds to the data receiving means of the present invention, and the event control module corresponds to the event generating means of the present invention.

An event inspection module C is connected to the event control module b. This event inspection module C
corresponds to the identification means of the present invention, and the event control module b compares the generated event with the priority event stored in the priority event storage area e1, and if the two match, the communication processing module entry is stored. Among the entries stored in area e3, priority communication processing module t1 is called.

A communication processing search module d is connected to the event inspection module C. This communication processing search module d
The search is performed when it is determined that an event that is not a priority event has occurred as a result of the comparison in the event inspection module C. That is, the entry for the communication processing modules t2 and 13 to be processed according to the current communication state stored in the communication state storage area e2 and the event that has occurred is searched.

The event inspection module C is further connected to the above-described priority event storage area els communication status storage area e2 and communication processing module entry storage area e3.

The priority event storage area e1 stores a priority event that is identified first when an event occurs. Information representing the communication state is stored in the communication state storage area e2. The communication processing module entry storage area e3 stores an entry for the priority communication processing module t1 to be processed according to the priority event stored in the priority event storage area e1.

The priority communication processing module t1 has a communication status storage area e.
When the priority event stored in the priority event storage area e1 occurs during the communication state stored in the communication processing module t2 and the communication processing module t13, the communication processing module t2 and the communication processing module t13 execute communication processing in priority. However, for the sake of explanation, the priority communication processing module t1 is an undefined communication processing module I2 or i3 that executes communication processing with priority next, and is not a fixed communication processing module.

After completing the execution of the communication processing, the communication processing modules 11 to 13 store the communication state at that time in the communication state storage area e2, store the priority event to be processed next in priority event storage area e1, Furthermore, the entry for the priority communication processing module 11 to be processed by the priority event is stored in the communication processing module entry storage area e3. This priority communication processing module 11 corresponds to the execution means of the present invention, and the communication processing modules 11 to t3 correspond to the setting means of the present invention.

FIGS. 2, 3, and 4 are flowcharts for explaining the operation of the communication processing device shown in FIG.
The operation of this embodiment will be explained with reference to these figures.

As shown in FIG. 2, in the routine R1 when receiving data from a communication path, the presence or absence of received data is determined by the communication module a (Step S1), and when data is received, it is determined whether the received data is valid or not. (Step S2)
. If it is valid, the received data is passed to the event control module b, and the process moves to routine R2 shown in FIG. 3 (step S3). Note that if the received data is invalid (step S2), the received data is discarded and the next received data is waited for.

In routine R2, when receiving data from communication module a is received (step S4), an event is generated by event control module b, and routine R shown in FIG.
3 (step S5).

In the routine R3, the event control module b determines whether an event has occurred (step S6). If an event has occurred, the event inspection module C determines whether this event or a priority event stored in the priority event storage area e1 is detected. It is determined whether there is one (step 57).

If it is a priority event, call the corresponding entry stored in the communication processing module entry storage area e3 (step S8), and then call the priority communication processing module 11 for that entry (step 5IO).
.

On the other hand, if it is not a priority event, the communication processing search module d is called in step S9), and this communication processing search module d retrieves the generated event and communication status storage area e2.
The communication processing module 12 or t3 is called based on the current communication state stored in the communication processing module 12 or t3 (step 510).

Next, when the called communication module executes the communication process and ends the communication process (step Sll)
, the communication status at that time is stored in the communication status storage area e2 (step 512), and a priority event corresponding to the communication process to be processed next is set and stored in the priority event storage area ei (step 513).

[Effects of the Invention] As described in detail above, according to the present invention, there are provided a data receiving means for receiving data from a communication path, an event generating means for generating an event in response to data received by the data receiving means, Identification means for identifying whether the event generated by the event generation means is a set priority event, and if the generated event is the priority event described above, execution for executing communication processing corresponding to this priority event. and a setting means for dynamically setting a priority event to be processed next after the execution of this communication process is completed, so that when data is received and an event occurs, the communication process can be executed. Search can be done in a short time and sequence processing can be speeded up. Therefore, if the present invention is applied when it is desired to speed up normal sequence processing in communication processing or when it is desired to speed up sequence processing when an error occurs, significant effects can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the communication processing device of the present invention, and FIGS. 2, 3, and 4 are flowcharts for explaining the operation of the communication processing device of FIG. 1. a...Communication module, b...Event control module, C...Event inspection module, d...Communication processing search module, el.
...Priority event storage area, e2...
Communication status storage area, e3... Communication processing module entry storage area, 11... Priority communication processing module, [2, [3... Communication processing module. Figure 2

Claims (1)

[Claims] A data receiving means that receives data from a communication channel, an event generating means that generates an event in response to data received by the data receiving means, and whether or not the event generated from the event generating means is a set priority event. an identification means for identifying the event, an execution means for executing a communication process corresponding to the priority event when the event that has occurred is the priority event, and an execution means for executing the communication process corresponding to the priority event after the execution of the communication process is completed; 1. A communication processing device comprising: a setting means for dynamically setting a priority event to be given.