CN109542653A - A kind of queue port communication means based on port list - Google Patents
A kind of queue port communication means based on port list Download PDFInfo
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- CN109542653A CN109542653A CN201811471404.3A CN201811471404A CN109542653A CN 109542653 A CN109542653 A CN 109542653A CN 201811471404 A CN201811471404 A CN 201811471404A CN 109542653 A CN109542653 A CN 109542653A
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- port
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- destination
- communication means
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- 238000004891 communication Methods 0.000 title claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 19
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000005192 partition Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
Classifications
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3089—Monitoring arrangements determined by the means or processing involved in sensing the monitored data, e.g. interfaces, connectors, sensors, probes, agents
- G06F11/3093—Configuration details thereof, e.g. installation, enabling, spatial arrangement of the probes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3089—Monitoring arrangements determined by the means or processing involved in sensing the monitored data, e.g. interfaces, connectors, sensors, probes, agents
- G06F11/3096—Monitoring arrangements determined by the means or processing involved in sensing the monitored data, e.g. interfaces, connectors, sensors, probes, agents wherein the means or processing minimize the use of computing system or of computing system component resources, e.g. non-intrusive monitoring which minimizes the probe effect: sniffing, intercepting, indirectly deriving the monitored data from other directly available data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
- G06F2209/54—Indexing scheme relating to G06F9/54
- G06F2209/548—Queue
Abstract
The invention belongs to computer system software professional skill fields, it is related to a kind of queue port communication means based on port list, this method is for solving in embedded real time partitioned operating system, in subregion process need while listening for and when handling multiple destination port message, using the waste of cpu resource caused by polling mode and Message Processing problem not in time.A kind of queue port communication means based on port list provided by the invention includes two critical aspects: an realizes that process monitors processing to one group of destination port simultaneously in subregion by port list；Whether there is or not message according to destination port for receiving and its condition conversion by two, pass through management port listing signal amount, realize to the access control of port list.After implementing the queue port communication means that the present invention designs, process is needed while being monitored under the scene for handling multiple destination ports in subregion, can save CPU computing resource, improves Message Processing efficiency.
Description
Technical field
The invention belongs to computer system software professional skill fields, and it is logical to be related to a kind of queue port based on port list
Letter method.
Background technique
Synthesization, modular avionics system (IMA) are by multiple application Integratings to high speed processing ability
In computer, pass through resource-sharing, lifting system efficiency.Partition operating system is the embedded real-time operation that IMA is mainly used
System.In order to guarantee certainty and robustness, what the subregion in partition operating system was mutually isolated in room and time.Queue
Port, which is to provide between subregion, interconnects, and carries out the main path of information exchange.
Queue port is divided into source port and destination port.Process can send message by source port in subregion, pass through mesh
Port receive message.Queue port provides message queuing services, and when destination port is empty, process can block in subregion
The message to be received such as on corresponding port, until port becomes available (the available meaning in port: for destination port, for end
Mouth has message for receiving).It is one-to-many corresponding relationship between source port and destination port, a destination port is corresponding unique
A source port, therefore, in existing queue port information communication mechanism, process can only be at most blocked in simultaneously in subregion
On one destination port.If process needs while receiving, handling multiple destination port message in a subregion, certain can only be specified
A time interval, the in sequence each destination port of poll.Under this processing mode, if polling interval is short, between message reaches
It is long every the time, then waste CPU computing resource；If polling interval is long, message interarrival time is short, then will lead to message cannot
In time the problem of processing.
Summary of the invention
The purpose of the present invention: the present invention provides a kind of queue port communication means based on port list, it is therefore an objective to solve
Process is when needing while listening for and handling multiple destination port message in subregion, using the wave of cpu resource caused by polling mode
Take and Message Processing problem not in time, to improve queue port communication efficiency in this case.
Technical solution of the present invention: a kind of queue port communication means based on port list includes the following steps and comes in fact
The multiple destination ports of processing are now monitored simultaneously:
Step 1: creation queue port port list is initially empty；
Step 2: the destination port monitored will be needed to be added in port list；
Step 3: according to monitoring needs, by setting port activity state be ACTIVE state or NOT_ACTIVE state,
Monitoring range is adjusted flexibly；
Step 4: service being received by port list while monitoring and handling multiple destination ports, according in port list
Whether destination port has that message can receive and its state change carrys out management port listing signal amount, final to realize to port list
Access management.
The present invention has the advantage that effect: after implementing method of the present invention, it is possible to provide a kind of interrupt monitors simultaneously
The method for handling multiple destination ports compares polling mode, can save the computing resource of CPU, improves and handles multiple destinations
The efficiency of mouth message.
Detailed description of the invention
Fig. 1 port list receives service execution process figure.
Specific embodiment
A kind of queue port communication means based on port list, comprising the following steps:
Step 1: creation queue port port list is initially empty
When creating queue port list, the specified maximum destination port number for allowing to be added the port list, creation storage
Space, and port list creates a counting semaphore thus, semaphore initial value is 0；
Step 2: will need while the destination port of monitoring is added in port list
It will need while monitoring destination port to be added to port list, this destination port is made to become pair of port list service
As a port service list is at most added in a destination port.It is other to check whether this destination port has been added to when addition
Miniport service list, and whether have exceeded the number upper limit that port list allows to be added；
Step 3: according to monitoring needs, active state of the destination port in port list being set, monitoring model is adjusted flexibly
It encloses.
It can set the destination port in miniport service list to Mobile Forms (ACTIVE) or inactive (NOT_
ACTIVE).The meaning of ACTIVE state is that miniport service list needs to monitor this destination port message of processing, and NOT_ACTIVE contains
Justice is in contrast.By the way that active state of each destination port in miniport service list can be respectively set, port is provided
The flexibility of list service control monitoring range.
When active state is arranged, if switching to ACTIVE by NOT_ACTIVE, and the current state of this destination port is
There is message can receive, then discharges a port list counting semaphore；If switching to NOT_ACTIVE, and this purpose by ACTIVE
The current state of port is to have message can receive, then recycles a port list counting semaphore.It is counted and is believed by port list
Number amount, with the access times of control port list；
Step 4: service being received by port list while monitoring and handling multiple destination ports, according in port list
Whether destination port has that message can receive and its state change carrys out management port listing signal amount, final to realize to port list
Access management.
Port list receives the main process flow of service, as shown in Figure 1:
It is arrived if a) port list semaphore is available, then it represents that there is purpose port to can receive message on port list.
It needs to complete the reception of a piece of news by first manageable destination port according to specified Rule.Rule includes:
It according to addition sequence, always searches for since first position, or is searched for the position behind last processing position.It receives
After complete a piece of news, if this destination port still has message that can continue to, a port list semaphore is discharged.
If b) port list semaphore can not be got, according to specified time-out time, obstruction calls this service
Process in subregion, until there is port to become available on port list, or time-out.
C) when destination port from it is unavailable become available when, if destination port is in port list, and active state
For ACTIVE, then the port list semaphore where this destination port is discharged.Note: destination port becomes available inspection from unavailable
Survey mechanism is a part of queue port script communication mechanism, is not belonging to the description range of this patent.
It d), can be processed according to Rule first after the process unblocking state being blocked on port list
Destination port, complete the reception and subsequent processing of message.Same step a).
Specific work steps illustrated below:
1) multiple subregions are configured in the configuration tool that operating system provides.For three, respectively subregion A, subregion B
With subregion C；
2) difference subregion A, subregion B and subregion C distribution queue port.For example, the corresponding relationship of configuration is QPort_B2A_
SRC (source port of subregion B) -- > QPort_B2A_DST (destination port of subregion A), the QPort_C2A_SRC (source of subregion C
Mouthful) -- > QPort_C2A_DST (destination port of subregion A)；
3) in subregion A, subregion B, subregion C, the creation of queue port creation service completing port is called.
4) in subregion A, a port list, and the destination port (QPort_B2A_ that will need to pass through processing are created
DST, QPort_C2A_DST), it is added to port list；
5) in subregion A, it is ACTIVE that active state of the destination port in port list, which is respectively set,；
6) message is sent periodically through respective queue port in the process in subregion B and subregion C；
7) it calls port list to receive service in the process of subregion A, prison while to multiple destination ports can be completed
Control and processing；
8) invention effect achieved can be realized according to the execution of above-mentioned work step.
Claims (3)
1. a kind of queue port communication means based on port list, it is characterised in that the following steps are included:
Step 1: creation queue port port list is initially empty；
Step 2: the destination port monitored will be needed to be added in port list；
Step 3: monitoring range is adjusted flexibly by the way that port activity state is arranged according to monitoring needs；
Step 4: service being received by port list while monitoring and handling multiple destination ports, according to the purpose in port list
Whether port has that message can receive and its state change carrys out management port listing signal amount, the final access realized to port list
Management.
2. a kind of queue port communication means based on port list as described in claim 1, it is characterised in that: the step
In 1, when creating queue port port list, the specified maximum destination port number for allowing to be added the port list, creation storage
Space, and port list creates a counting semaphore thus, semaphore initial value is 0.
3. a kind of queue port communication means based on port list as described in claim 1, it is characterised in that: the step
In 2, a destination port is at most added a port service list, and it is other that when addition checks whether this destination port has been added to
Miniport service list, and whether have exceeded the number upper limit that port list allows to be added.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811471404.3A CN109542653A (en) | 2018-12-04 | 2018-12-04 | A kind of queue port communication means based on port list |
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| CN201811471404.3A CN109542653A (en) | 2018-12-04 | 2018-12-04 | A kind of queue port communication means based on port list |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030028681A1 (en) * | 2001-08-02 | 2003-02-06 | International Business Machines Corporation | Apparatus and method for port sharing among a plurality of server processes |
| US20110125821A1 (en) * | 2009-11-24 | 2011-05-26 | International Business Machines Corporation | Service Oriented Architecture Enterprise Service Bus With Universal Ports |
| WO2013049091A1 (en) * | 2011-09-29 | 2013-04-04 | Transact Technologies Incorporated | Status monitor for casino print system and corresponding methods for status monitoring |
| CN103139101A (en) * | 2011-11-23 | 2013-06-05 | 中国航空工业集团公司第六三一研究所 | Implementation method of queuing port for aviation dedicated full-duplex exchange type Ethernet terminal system |
| WO2016169529A2 (en) * | 2016-05-16 | 2016-10-27 | 白杨 | Bai yang messaging port switch service |
-
2018
- 2018-12-04 CN CN201811471404.3A patent/CN109542653A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030028681A1 (en) * | 2001-08-02 | 2003-02-06 | International Business Machines Corporation | Apparatus and method for port sharing among a plurality of server processes |
| US20110125821A1 (en) * | 2009-11-24 | 2011-05-26 | International Business Machines Corporation | Service Oriented Architecture Enterprise Service Bus With Universal Ports |
| WO2013049091A1 (en) * | 2011-09-29 | 2013-04-04 | Transact Technologies Incorporated | Status monitor for casino print system and corresponding methods for status monitoring |
| CN103139101A (en) * | 2011-11-23 | 2013-06-05 | 中国航空工业集团公司第六三一研究所 | Implementation method of queuing port for aviation dedicated full-duplex exchange type Ethernet terminal system |
| WO2016169529A2 (en) * | 2016-05-16 | 2016-10-27 | 白杨 | Bai yang messaging port switch service |
Non-Patent Citations (1)
| Title |
|---|
| 贠海顺: "《分区操作系统下模块间端口通信机制》", 《信息通信》 * |
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