CN105930219B - A custom communication method for multi-threaded management - Google Patents
A custom communication method for multi-threaded management Download PDFInfo
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- CN105930219B CN105930219B CN201610261157.9A CN201610261157A CN105930219B CN 105930219 B CN105930219 B CN 105930219B CN 201610261157 A CN201610261157 A CN 201610261157A CN 105930219 B CN105930219 B CN 105930219B
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- 238000004891 communication Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title abstract description 15
- 230000008859 change Effects 0.000 claims abstract description 11
- 238000005538 encapsulation Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/546—Message passing systems or structures, e.g. queues
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Abstract
一种自定义的多线程管控的通信方法，包括如下步骤：1)针对子线程的入口函数设计一个参数结构对象，其内嵌业务参数和两个命令指针单项；内嵌业务参数是正常的业务设计功能所需要的，命令指针单项是为父子线程之间的控制管理所设计；2)在父线程中定义、初始化2个局部变量，其地址作为上行、下行命令参数指针，启动子线程；3)在父线程中改变局部变量取值，所述局部变量包括下行命令参数，该取值变动引起子线程执行逻辑的变动；4)在子线程中获取传入指针，改变上行命令参数的取值，该取值变动引起父线程中代码执行逻辑的变动。本发明减少内核资源消耗、代码封装较简约、实时性良好。
A self-defined communication method for multi-thread management and control, comprising the following steps: 1) designing a parameter structure object for the entry function of a sub-thread, in which business parameters and two command pointer items are embedded; the embedded business parameters are normal services What is required for the design function, the single item of the command pointer is designed for the control management between the parent and child threads; 2) Define and initialize two local variables in the parent thread, and their addresses are used as the parameter pointers of the up and down commands to start the child thread; 3 ) in the parent thread, change the value of the local variable, the local variable includes the downlink command parameter, and this value change causes the change of the execution logic of the child thread; 4) obtain the incoming pointer in the child thread, and change the value of the uplink command parameter , the value change causes the code execution logic in the parent thread to change. The invention reduces the consumption of kernel resources, the code encapsulation is relatively simple, and the real-time performance is good.
Description
Technical field
The invention belongs to the communication means that program communication method more particularly to a kind of multithreading are managed.
Background technique
Multi-thread programming is a kind of software design that the several operation systems such as Windows/Linux/vxWorks are generally supported
The design method that a variety of development language platforms such as method and C/C++, Java, C# are supported.In each generic operation system of C/C++ level
Management control, data communication between enterprising line journey of uniting, there is similar a concept and mode, for example, mutual exclusion, locking, synchronization and
Wait etc..In JAVA since the multithreading API of language level supports that multi-thread design becomes more simple, JAVA Multi-thread control
The granularity of management is thicker compared with C/C++, thus flexibility is unlike the latter.
On each type operating system, using C/C++ carry out multithread programming thread management-control method, especially two
The synchronization of father and son's cross-thread progress different code sections.It is realized usually using lock mechanism, signal lamp, it can be on the windows
The switching and control of code execution flow are carried out using message.But these mechanism generally use kernel objects, external variable, in resource
It is not brief enough in consumption, code wrap；The message mechanism of windows be it is non real-time, sometimes will lead to the excessively long time
Delay.
Summary of the invention
In order to overcome, the kernel resources consumption of the communication means of existing multithreading control is larger, code wrap is not brief, real
The poor deficiency of when property, the present invention provides a kind of consumption of reduction kernel resources, code wrap is more brief, real-time is good certainly
The communication means of the multithreading control of definition.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of communication means of customized multithreading control, the communication means include the following steps:
1) an argument structure object is designed for the entrance function of sub thread, embedded service parameter and two orders refer to
Needle individual event；Embedded service parameter is required for normal service design function, and command pointer individual event is between father and son's thread
Control management designed by；
2) it defined in father's thread, initialize 2 local variables, address is opened as uplink, down order parameter pointer
Mover thread；
3) change local variable value in father's thread, the local variable includes down order parameter, which changes
Sub thread is caused to execute the variation of logic；
4) incoming pointer is obtained in sub thread, changes the value of uplink command parameter, and value variation causes father's thread
Middle code executes the variation of logic.
Further, the step 3), 4) view actual code design needs repeatedly, alternately irregularly carry out.
Further, step 3), 4) in, caused by switching respectively in the order for executing other side's thread before code segment, in advance
First initial value is changeed back parameter command.
Further, before carrying out the control to another thread by change bid value in thread, the current command is checked
Whether parameter is initial value, is the revaluate that initial value just carries out order, otherwise it is assumed that preceding once to the revaluate of order, there are no draw
Play the variation that thread executes flow direction.
Technical concept of the invention are as follows: devise a kind of thread code switching control technology based on command parameter, the party
Method is suitable for the several operation systems such as Windows/Linux/vxWorks and realizes in C/C++ level.
Using the command parameter of built-in pointer form in the input parameter of thread function, father's thread can after starting sub thread
With setting command value, sub thread executes different code segments according to order；Different command parameters also can be set in sub thread
Value executes flow direction to the code segment of father's thread and controls.Its pointer ginseng that function in C/C++ language is substantially really utilized
The property that carrying input and output are had both possessed by number.
Stick to ready-made Mutli-thread Programming Technology relative to existing general procedure person, and this method is different from ready-made more
Thread synchronization programming mechanism；From system resources consumption, it is light weight method that the technology occupancy resource that this method uses is low；With
WINDOWS message mechanism is compared, and this method real-time is good, is delayed low；This method is based on the parameter pointer realization between function, no
It is related to definition outside or global variable, code wrap is relatively good.
Beneficial effects of the present invention are mainly manifested in: the consumption of reduction kernel resources, code wrap is more brief, real-time is good
It is good.
Detailed description of the invention
Fig. 1 is the schematic diagram of the communication means of customized multithreading control.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig.1, a kind of communication means of customized multithreading control, includes the following steps:
1) an argument structure object is designed for the entrance function of sub thread, embedded service parameter and two orders refer to
Needle individual event；The former is required for normal service design function, and the latter is designed by the control management between father and son's thread；
Typedef struct
{
Char*downcmd；// downlink control parameter controls sub thread for father's thread
Char*upcmd；// upload control parameter is used for sub-line process control father's thread
Struct*SunWorkPara；
}SUN_THREAD_PARA；
For example, SunWorkPara is that sub thread needed for former business is passed to parameter,
Downcmd/upcmd is the command parameter of character type, they synthesize new sub thread function
Parameter.
2) it defined in father's thread, initialize 2 local variables, address is opened as uplink, down order parameter pointer
Mover thread；
3) change (down order parameter) local variable value in father's thread, value variation causes sub thread execution to be patrolled
The variation collected；
4) incoming pointer is obtained in sub thread, changes the value of uplink command parameter, and value variation causes father's thread
Middle code executes the variation of logic.
The step 3), 4) design of view actual code needs, and repeatedly, alternately can irregularly carry out.
The step 3), 4) in, caused by switching respectively in the order for executing other side's thread before code segment, in advance ginseng
Initial value is changeed back in number order.
By changing before bid value carries out the control to another thread in thread, check the current command parameter whether be
Initial value is the revaluate that initial value just carries out order, otherwise it is assumed that preceding once to the revaluate of order, there are no cause thread to execute
The variation of flow direction.
Example: a method prototype with C Implementation of pseudocode, sub thread is the thread of long-term terminate-and-stay-resident here, wherein
Father's thread code
Claims (4)
1. a kind of communication means of customized multithreading control, it is characterised in that: the communication means includes the following steps:
1) an argument structure object is designed for the entrance function of sub thread, embeds service parameter and two command pointer lists
?；Embedded service parameter is required for normal service design function, and command pointer individual event is the control between father and son's thread
Designed by tubulation reason；
2) it defined in father's thread, initialize 2 local variables, address is as uplink, down order parameter pointer, promoter
Thread；
3) change local variable value in father's thread, the local variable includes down order parameter, and value variation causes
The variation of sub thread execution logic；
4) incoming pointer is obtained in sub thread, changes the value of uplink command parameter, and value variation causes generation in father's thread
Code executes the variation of logic.
2. a kind of communication means of customized multithreading control as described in claim 1, it is characterised in that: the step
3), 4) view actual code design need, and repeatedly, alternately irregularly carries out.
3. a kind of communication means of customized multithreading control as claimed in claim 1 or 2, it is characterised in that: step 3),
4) in, before code segment caused by switching respectively in the order for executing other side's thread, in advance down order parameter in father's thread
Value change back that initial value, the value of uplink command parameter changes back initial value in sub thread.
4. a kind of communication means of customized multithreading control as claimed in claim 1 or 2, it is characterised in that: in thread
It is interior carry out the control to father, sub thread by changing uplink, down order parameter value before, check that uplink and downlink command parameter value is
No is initial value, is the revaluate that initial value just carries out uplink and downlink command parameter, otherwise it is assumed that preceding once to uplink and downlink command parameter
Revaluate, there are no cause operating system execution thread dispatch execution flow direction variation.
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| CN105930219B true CN105930219B (en) | 2019-02-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833476A (en) * | 2010-05-28 | 2010-09-15 | 西安交通大学 | Independent Stack Function Calling Method under Speculative Multithreading Mechanism Based on CMP |
| CN102279774A (en) * | 2011-08-22 | 2011-12-14 | 中兴通讯股份有限公司 | Method and device for realizing multi-thread message interaction by using synchronous function calling mechanism |
| CN103744643A (en) * | 2014-01-10 | 2014-04-23 | 浪潮(北京)电子信息产业有限公司 | Method and device for structuring a plurality of nodes parallel under multithreaded program |
| US8819700B2 (en) * | 2010-12-22 | 2014-08-26 | Lsi Corporation | System and method for synchronous inter-thread communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005001025A1 (en) * | 2005-01-07 | 2006-07-27 | Infineon Technologies Ag | Multi-thread processor, has switching table receiving internal and external exceptions of specific context, where context parameter sets of exceptions are updated, and switching parameter set is set for flow control of program commands |
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2016
- 2016-04-22 CN CN201610261157.9A patent/CN105930219B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833476A (en) * | 2010-05-28 | 2010-09-15 | 西安交通大学 | Independent Stack Function Calling Method under Speculative Multithreading Mechanism Based on CMP |
| US8819700B2 (en) * | 2010-12-22 | 2014-08-26 | Lsi Corporation | System and method for synchronous inter-thread communication |
| CN102279774A (en) * | 2011-08-22 | 2011-12-14 | 中兴通讯股份有限公司 | Method and device for realizing multi-thread message interaction by using synchronous function calling mechanism |
| CN103744643A (en) * | 2014-01-10 | 2014-04-23 | 浪潮(北京)电子信息产业有限公司 | Method and device for structuring a plurality of nodes parallel under multithreaded program |
Non-Patent Citations (1)
| Title |
|---|
| POS实时监控软件多线程通信设计及实现;刘艳群，朱庄生;《计算机工程与设计》;20150630;第1401-1406页 * |
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Effective date of registration: 20220128 Address after: 310000 5-1006, No. 501, No. 2 street, Baiyang street, Qiantang new area, Hangzhou, Zhejiang Province Patentee after: Hangzhou Markov Technology Co.,Ltd. Address before: The city Zhaohui six districts Chao Wang Road Hangzhou City, Zhejiang province 310014 18 Patentee before: ZHEJIANG University OF TECHNOLOGY |