CN100426240C - A time processing method of message and embedded multiple task operating system - Google Patents
A time processing method of message and embedded multiple task operating system Download PDFInfo
- Publication number
- CN100426240C CN100426240C CNB2006101147530A CN200610114753A CN100426240C CN 100426240 C CN100426240 C CN 100426240C CN B2006101147530 A CNB2006101147530 A CN B2006101147530A CN 200610114753 A CN200610114753 A CN 200610114753A CN 100426240 C CN100426240 C CN 100426240C
- Authority
- CN
- China
- Prior art keywords
- message
- timer
- task
- time
- handling routine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003672 processing method Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 37
- 238000005538 encapsulation Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 206010011469 Crying Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
Images
Landscapes
- Debugging And Monitoring (AREA)
- Computer And Data Communications (AREA)
Abstract
This invention discloses a message timely process method applied in imbedded multi-task operation system, which comprises the following steps: when task receives information, judging current message needs timely process; if it needs timely process, then starting timer; when timer interval generates, starting timer interval process program; executing relative detail work in timer interval process program. This invention discloses a imbed multi-task operation system structure of this method.
Description
Technical field
The present invention relates to embedded multiple task operating system, relate in particular to the method for in embedded multiple task operating system, the message of task reception in time being handled.
Background technology
In a lot of embedded OSs, system all is multitask (or crying a multi-process) system, and the scheduling mode that adopts is a preemptive type.Switching between each task and executable operations all are based on message mechanism.That is to say, after a task A receives a piece of news, resolve this message content, and begin to carry out the corresponding concrete operations of this message; After this message was complete, task A waited for reception a piece of news down, and carried out corresponding the operation according to the command content of the following a piece of news that receives, and ended task after task A receives and handles entire message.But carry out in the specific operation process of message at task A, may be interrupted by priority higher task B or interrupt routine, at this moment, task A will be stopped and carry out current message, and task A is hung up by system; Like this, just very difficult assurance task A is performed in the regular hour and finishes.Particularly when task A receives important message, often need timely processing, to guarantee the deadline of this message, if in the important messages implementation, task A is interrupted by priority higher task or interrupt handling routine, and then this important messages of task A will be interrupted execution, can continue to carry out after the task of other that can only wait for that priority is high or interrupt handling routine are complete, so important messages is difficult to guarantee in the regular hour complete.
In the prior art, in some embedded systems in order to guarantee a certain task executions time, directly use timer, the operation that will finish each bar message of this task has been placed directly in the timer interrupt handling routine to be carried out, will produce at set intervals once after timer starts and interrupt, the timer interrupt handling routine can be performed once at set intervals.Adopt this mode, when task is finished, in the time of need handling without any message, timer also produces the continuation cycle and interrupts, but the timer interrupt handling routine is not carried out any concrete operation in fact in this case, these interruptions are nonsensical, can cause resource waste.
Summary of the invention
The invention provides the timely disposal route of a kind of message, in order to solve the problem that can not guarantee message or task executions time and waste system resource that exists in the prior art.
The inventive method comprises and is applied to embedded multiple task operating system, comprising: preestablish the type of message that needs are in time handled in system;
After task receives message, judge according to type of message whether needs are in time handled for the message of current reception, in time handle if desired, then start timer; After timer interrupts producing, in the timer interrupt handling routine, carry out the concrete operations corresponding, and after described concrete operations are finished, close described timer automatically by described timer interrupt handling routine with this message;
Do not need timely processing if judge the message of current reception, then carry out conventional Message Processing flow process.
According to said method of the present invention, the associative operation that different types of messages need be carried out is packaged into respective function in advance, is stored in the system; Need in time to handle if judge the message of current reception, carry out the following step:
Match the respective function of current message, the address information of respective function is passed to described timer interrupt handling routine;
Start described timer, after timer interrupts producing, according to the described respective function of described function address information and executing, finish the concrete operations relevant with current message by the timer interrupt handling routine.
According to said method of the present invention, the time interval of described timer can be provided with.
According to said method of the present invention, preestablish the priority that needs the different types of messages in time handled, and the time interval of the setting timer corresponding with different priorities;
When the message of judging current reception needs in time to handle, determine its corresponding priorities according to type of message, the priority time corresponding that the time interval of described timer is set to and determines back at interval starts described timer.
According to said method of the present invention, after current Message Processing finished, described task waited for that receiving next message handles, and finishes up to task.
The present invention provides a kind of embedded multiple task operating system in addition, comprises several task executing units, timer and storage unit, and each task executing units comprises:
The message sink module receives and sends to the message of this task, and is transmitted to the message judge module;
The message judge module is used to judge whether the message of current reception needs timely processing, in time handles if desired, then sends message to interruption processing module; Otherwise, send a message to the common message processing module;
Interruption processing module is used to start timer, and after timer interrupts producing, starts the timer interrupt handling routine that is stored in the described storage unit, carries out the concrete operations relevant with this message in the timer interrupt handling routine;
The common message processing module is carried out conventional Message Processing flow process.
Also store the function corresponding in the described storage unit with different types of messages, the associative operation that the corresponding message of encapsulation need be carried out in each function, described interruption processing module comprises:
Matched sub-block matches the respective function of current message;
Transmit submodule, the address information of respective function is passed to the timer interrupt handling routine of storing in the described storage unit;
Interrupt submodule, start timer, after timer interrupts producing, carry out the timer interrupt handling routine,, finish the relevant concrete operations of current message according to described function address information and executing respective function.
Beneficial effect of the present invention is as follows:
Adopt the present invention, after task receives message, whether the message of judging current reception needs timely processing, in time handle if desired, then start timer, after timer interrupts producing, start timer and carry out interrupt handling routine, in the timer interrupt handling routine, carry out the concrete work corresponding with this message, after the concrete work corresponding with message is finished, the automatic timeing closing device of timer interrupt handling routine.Because in a single day the timer interrupt handling routine is performed, and will be finished, the centre can not interrupted by any task or interrupt handling routine, therefore can guarantee the execution time of message.When a task comprises a plurality of message,, then just can guarantee the whole task executions time if each message all adopts method of the present invention in time to handle.In other words, when needs guarantee that a task executions is during the time, can in advance the various type of messages that this task comprised all be set at needs in time handles, after task receives message, will start timer, produce and interrupt, carry out the concrete operations of message correspondence by the interrupt handling routine of timer.If in the task only some message need guarantee its execution time, then this type message sets is in time handled for needing, the concrete operations of being carried out this type message correspondence by the interrupt handling routine of timer get final product.Like this, adopt the inventive method, make task itself possess the characteristic of certain interrupt routine, not only can guarantee the execution time of a certain section work in whole task or the task, and task or corresponding moral conduct complete after, the automatic timeing closing device of interrupt routine has been avoided timer owing to periodically start the problem that useless interruption causes system resource waste that produces.
Description of drawings
Fig. 1 is a method embodiment process flow diagram provided by the invention;
Fig. 2 is an embedded multitask system structural representation provided by the invention.
Embodiment
The invention provides the timely disposal route of a kind of message, be applied to embedded multiple task operating system, comprising:
After task receives message, judge whether the message of current reception needs timely processing, in time handle if desired, then start timer, after timer interrupts producing, carry out the timer interrupt handling routine, in the timer interrupt handling routine, carry out the concrete work corresponding with this message.
Below in conjunction with accompanying drawing, the inventive method is described in detail.
Referring to Fig. 1, be the inventive method embodiment process flow diagram, comprise following concrete steps:
After step S101, the system start-up, in system, create a task, store the respective function that in advance that the different types of messages of task is relevant action is packaged in the system;
Step S102, being created of task begin to start;
After step S103, the task start that is created, wait for that the user sends message;
Step S104, judge whether to receive the message of the task of sending to,, then go to step S103, continue to wait for the arrival of news if do not receive message; If received message, execution in step S105 then;
Whether step S105, the message of judging current reception are to need the message in time handled, if, execution in step S106 then; Otherwise, execution in step S108;
Whether the message of judging current reception is that specifically determination methods for example when needing the message of processing in time: the type of message that preestablishes the message correspondence that need in time handle in system;
After task receives message, judge according to type of message whether needs are in time handled for the message of current reception;
Step S106, match the respective function of current message, the respective function address information is passed to the timer interrupt handling routine; And startup timer; Continue step S107;
Step S107, when the time interval that timer is set arrives (for example, the time interval of setting timer is 1 millisecond), produce timer and interrupt; Start the timer interrupt handling routine,, finish the concrete work of this message correspondence according to the function address information and executing respective function of transmitting, after the concrete work corresponding with message is finished, the automatic timeing closing device of timer interrupt handling routine; Continue step S109;
Step S108, the conventional Message Processing flow process of execution continue step S109;
The Message Processing flow process of described routine when promptly current task is not interrupted, is directly carried out the concrete operations of this message correspondence; In the message implementation, can be interrupted by the higher task of priority;
Step S109, judge whether current task is finished,, judge that then current task finishes, finish current task if handled the last item message of current task; Otherwise, go to step S103, continue to wait for that the user sends message, repeat above flow process.
In concrete the application, can be provided with respectively at different tasks and need the type of message of processing in time, when needs guarantee the execution time of a vital task, can in advance the various type of messages that this task comprised all be set at needs in time handles, after task receives each message, above-mentioned flow process according to the embodiment of the invention all can start timer generation interruption, is carried out the concrete operations of message correspondence by the interrupt handling routine of timer; If in the current task only some message need guarantee its execution time, then this kind needs are guaranteed that the type of message of the message correspondence of execution time is set at and need in time handles, receive the message of this type when task after, carry out the concrete operations of this type message correspondence by the interrupt handling routine of timer, thereby realize the execution time of a certain section work in the assurance task.
According to the said method that this embodiment provides, the time interval of timer can be provided with.
For example: preestablish the priority that needs the different types of messages in time handled, and the time interval of the setting timer corresponding with different priorities; When the message of judging current reception needs in time to handle, determine its corresponding priorities according to type of message, restart timer behind the priority time corresponding interval that the time interval of timer is set to and determines.
As shown in table 1 below:
Table 1
| Type of message | Priority | Timer time at interval |
| Type A | 1 grade | 1 millisecond |
| Type B | 2 grades | 2 milliseconds |
| Type C | 3 grades | 3 milliseconds |
As shown in Table 1, the message priority of type A is the highest, and timer produces and interrupts after timer starts 1 millisecond, carries out the timer interrupt handling routine, carries out the concrete operations of this message correspondence in interrupt handling routine.In like manner, for the type B that receives and the message of Type C, also need to start the timer generation and interrupt, only timer time is a little longer at interval, is producing interruption after 2 milliseconds and after 3 milliseconds respectively.
According to said method provided by the invention, the invention provides a kind of embedded multiple task operating system 10 that possesses corresponding function, its structural representation comprises several task executing units 101, timer 102 and storage unit 103 as shown in Figure 2, and each task executing units 101 comprises:
Common message processing module 1014 is directly carried out the concrete work of this message correspondence.
Can also store the function corresponding in the storage unit 103, the related work content of the corresponding message of encapsulation in each function with different types of messages;
Matched sub-block 10131 matches the respective function of current message;
Transmit submodule 10132, the respective function address information is passed to the timer interrupt handling routine of storage in the storage unit 103;
Interrupt submodule 10133, start timer, after timer interrupts producing, carry out the timer interrupt handling routine,, finish the concrete work of message correspondence according to function address information and executing respective function.
In sum, adopt the present invention, after task receives message, whether the message of judging current reception needs timely processing, in time handles if desired, then starts timer, after interrupting producing, timer carries out the timer interrupt handling routine, in the timer interrupt handling routine, carry out the concrete work corresponding with this message, after the concrete work corresponding with message is finished, the automatic timeing closing device of timer interrupt handling routine.Because in a single day the timer interrupt handling routine is performed, and will be finished, the centre can not interrupted, so interrupt handling routine can guarantee the execution time of message.When a task comprises a plurality of message,, then just can guarantee the whole task executions time if each message all adopts method of the present invention in time to handle.If in the task only some message need guarantee its execution time, then this type message sets is in time handled for needing, the concrete operations of being carried out this type message correspondence by the interrupt handling routine of timer get final product.Like this, adopt the inventive method, make task itself possess the characteristic of certain interrupt routine, not only can guarantee the execution time of a certain section work in whole task or the task, and task or corresponding moral conduct complete after, the automatic timeing closing device of interrupt routine has been avoided timer owing to periodically start the problem that useless interruption causes system resource waste that produces.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1, the timely disposal route of a kind of message is applied to embedded multiple task operating system, it is characterized in that, comprising: preestablish the type of message that needs are in time handled in system;
After task receives message, judge according to type of message whether needs are in time handled for the message of current reception, in time handle if desired, then start timer; After timer interrupts producing, in the timer interrupt handling routine, carry out the concrete operations corresponding, and after described concrete operations are finished, close described timer automatically by described timer interrupt handling routine with this message;
Do not need timely processing if judge the message of current reception, then carry out conventional Message Processing flow process.
2, the method for claim 1 is characterized in that, the associative operation that different types of messages need be carried out is packaged into respective function in advance, is stored in the system; Need in time to handle if judge the message of current reception, carry out the following step:
Match the respective function of current message, the address information of respective function is passed to described timer interrupt handling routine;
Start described timer, after timer interrupts producing, according to the described respective function of described function address information and executing, finish the concrete operations relevant with current message by the timer interrupt handling routine.
3, the method for claim 1 is characterized in that, the time interval of described timer can be provided with.
4, method as claimed in claim 3 is characterized in that, preestablishes the priority that needs the different types of messages in time handled, and the time interval of the setting timer corresponding with different priorities;
When the message of judging current reception needs in time to handle, determine its corresponding priorities according to type of message, the priority time corresponding that the time interval of described timer is set to and determines back at interval starts described timer.
5, method as claimed in claim 4 is characterized in that, after current Message Processing finished, described task waited for that receiving next message handles, and finishes up to task.
6, a kind of embedded multiple task operating system comprises several task executing units, timer and storage unit, it is characterized in that, each task executing units comprises:
The message sink module receives and sends to the message of this task, and is transmitted to the message judge module;
The message judge module is used to judge whether the message of current reception needs timely processing, in time handles if desired, then sends message to interruption processing module; Otherwise, send a message to the common message processing module;
Interruption processing module is used to start timer, and after timer interrupts producing, starts the timer interrupt handling routine that is stored in the described storage unit, carries out the concrete operations relevant with this message in the timer interrupt handling routine;
The common message processing module is carried out conventional Message Processing flow process.
7, embedded multiple task operating system as claimed in claim 6, it is characterized in that, also store the function corresponding in the described storage unit with different types of messages, the associative operation that the corresponding message of encapsulation need be carried out in each function, described interruption processing module comprises:
Matched sub-block matches the respective function of current message;
Transmit submodule, the address information of respective function is passed to the timer interrupt handling routine of storing in the described storage unit;
Interrupt submodule, start timer, after timer interrupts producing, carry out the timer interrupt handling routine,, finish the relevant concrete operations of current message according to described function address information and executing respective function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101147530A CN100426240C (en) | 2006-11-22 | 2006-11-22 | A time processing method of message and embedded multiple task operating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101147530A CN100426240C (en) | 2006-11-22 | 2006-11-22 | A time processing method of message and embedded multiple task operating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1952899A CN1952899A (en) | 2007-04-25 |
| CN100426240C true CN100426240C (en) | 2008-10-15 |
Family
ID=38059252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101147530A Expired - Fee Related CN100426240C (en) | 2006-11-22 | 2006-11-22 | A time processing method of message and embedded multiple task operating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100426240C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156662A (en) * | 2011-02-14 | 2011-08-17 | 大唐移动通信设备有限公司 | Method and equipment for processing data |
| GB2514126A (en) * | 2013-05-14 | 2014-11-19 | Ibm | Interruption of chip component managing tasks |
| CN105718326B (en) * | 2016-01-27 | 2018-12-11 | 惠州市德赛西威汽车电子股份有限公司 | The restorability test method of embedded system |
| CN105718375B (en) * | 2016-01-27 | 2018-09-25 | 惠州市德赛西威汽车电子股份有限公司 | The restorability measure of embedded system |
| CN112199170A (en) * | 2020-09-07 | 2021-01-08 | 广州致远电子有限公司 | Timing processing method, device and equipment of real-time operating system and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441570A (en) * | 2002-02-28 | 2003-09-10 | 深圳市中兴通讯股份有限公司上海第二研究所 | Timing method of timer in embedded real-time operation system |
| US20030172221A1 (en) * | 2002-03-01 | 2003-09-11 | Mcneil Donald H. | Ultra-modular processor in lattice topology |
| JP2005250949A (en) * | 2004-03-05 | 2005-09-15 | Sony Corp | Information processor and its virtual input method |
| CN1755614A (en) * | 2004-09-29 | 2006-04-05 | 华为技术有限公司 | Timer realizing method |
| CN1828481A (en) * | 2006-03-10 | 2006-09-06 | 浙江大学 | Energy-saving switching method for waiting overtime judge of flush type system outer apparatus |
-
2006
- 2006-11-22 CN CNB2006101147530A patent/CN100426240C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441570A (en) * | 2002-02-28 | 2003-09-10 | 深圳市中兴通讯股份有限公司上海第二研究所 | Timing method of timer in embedded real-time operation system |
| US20030172221A1 (en) * | 2002-03-01 | 2003-09-11 | Mcneil Donald H. | Ultra-modular processor in lattice topology |
| JP2005250949A (en) * | 2004-03-05 | 2005-09-15 | Sony Corp | Information processor and its virtual input method |
| CN1755614A (en) * | 2004-09-29 | 2006-04-05 | 华为技术有限公司 | Timer realizing method |
| CN1828481A (en) * | 2006-03-10 | 2006-09-06 | 浙江大学 | Energy-saving switching method for waiting overtime judge of flush type system outer apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1952899A (en) | 2007-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100426240C (en) | A time processing method of message and embedded multiple task operating system | |
| CN101266553B (en) | Multitask management process based on embedded system | |
| CN100488265C (en) | Concurrent method for treating calling events | |
| CN106293919A (en) | The built-in tasks dispatching device of a kind of Time Triggered and method | |
| CN103092682A (en) | Asynchronous network application program processing method | |
| CN102073572B (en) | For method for supervising and the system of polycaryon processor | |
| CN104536835B (en) | Self-adapting task scheduling method in a kind of Hot Spare real-time control system | |
| CN109558227B (en) | Monotonic rate task scheduling method based on task execution budget | |
| CN102025562A (en) | Path detection method and device | |
| CN102096603A (en) | Task decomposition control method in MapReduce system and scheduling node equipment | |
| CN102455940A (en) | Processing method and system of timers and asynchronous events | |
| WO1999014915A8 (en) | Process scheduling in computer network | |
| CN102110022A (en) | Sensor network embedded operation system based on priority scheduling | |
| CN105204857A (en) | Design method of embedded control system capable of accurately scheduling a plurality of time slices based on polling mode | |
| CN101398772A (en) | Network data interrupt treating method and device | |
| CN100501682C (en) | synchronous prosecution method for digital family network multiple-task synchronous prosecution device | |
| CN101841476A (en) | Message processing method, device and network equipment | |
| CN101695045A (en) | Method and device for realizing Ethernet messaging | |
| CN108509257B (en) | Message processing method and device based on multithreading | |
| CN103034480A (en) | Embedded system timer realizing method | |
| CN112068940A (en) | Real-time task scheduling method, device, scheduling system and storage medium | |
| CN102129475A (en) | Conflict avoidance method and system for solving limited system resources | |
| CN101917687A (en) | Message sending method and message centre | |
| CN102573073A (en) | Resource allocation method and system for physical layer of terminal | |
| CN101976206A (en) | Interrupt handling method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20121122 |