CN108809761A - Presence detection method and device - Google Patents
Presence detection method and device Download PDFInfo
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- CN108809761A CN108809761A CN201810598949.4A CN201810598949A CN108809761A CN 108809761 A CN108809761 A CN 108809761A CN 201810598949 A CN201810598949 A CN 201810598949A CN 108809761 A CN108809761 A CN 108809761A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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Abstract
This application discloses a kind of presence detection method and device, the presence detection method is applied to server, multiple first queues of the server configured with the information for preserving terminal, the quantity of the first queue is the quotient of preset detection time-out time and assay intervals duration, the method includes：Long circulating regard one in the multiple first queue as target first queue successively when at interval of the assay intervals；For each terminal recorded in the target first queue, the duration for the heartbeat packet for not receiving terminal transmission is obtained as Lungs from Non-Heart-Beating packet duration, judges whether the terminal keeps online according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration；It, will be in the information storage of the terminal newly reached the standard grade to current target first queue when detecting the terminal newly reached the standard grade.Presence detection method disclosed in the present application can reduce the CPU usage in presence detection process, improve detection efficiency.
Description
Technical field
This application involves technical field of data processing, in particular to a kind of presence detection method and device.
Background technology
In internet, it is generally based on the request of Internet protocol transmission data, with acquisition request data information.
The online mode of current detection terminal is, when terminal logs in, server-side adds the information for the terminal newly reached the standard grade
To the end of a queue, the information of all terminals is preserved using a queue.Each terminal can be between the detection of one, interval
Heartbeat packet is sent to server every duration, and server can go to detect all terminals and not receive every an assay intervals duration
The time of terminal heartbeat packet.If server detects that the time for not receiving heartbeat packet is more than detection time-out time, judge
The terminal is off-line state.
In existing this terminal detection mode, server at each test, is required for detecting and all is stored in queue
In terminal the eartbeat interval time, therefore, this endpoint detection methods are very high to the resource consumption of CPU.Especially work as end
When the quantity at end is more, this endpoint detection methods are even more apparent to the resource consumption of CPU so that CPU usage is high, detection
Process carries out slow.
Invention content
In order to overcome above-mentioned deficiency in the prior art, the application's is designed to provide a kind of presence detection side
Method is applied to server, multiple first queues of the server configured with the information for preserving terminal, the first queue
Quantity be it is preset detection time-out time and assay intervals duration quotient, the method includes：
Long circulating regard one in the multiple first queue as target first successively when at interval of the assay intervals
Queue；
For each terminal recorded in the target first queue, the heartbeat packet for not receiving terminal transmission is obtained
Duration judges whether the terminal keeps as Lungs from Non-Heart-Beating packet duration, according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
Online；
When detecting the terminal newly reached the standard grade, by the information storage of the terminal newly reached the standard grade to current target first team
In row.
Optionally, in the presence detection method, second queue, second team are also configured in the server
The member of row corresponds with the first queue；
It is described at interval of the assay intervals when long circulating successively by one in the multiple first queue be used as target
The step of first queue includes,
Long circulating is successively using a member in the second queue as the second team of target when the assay intervals
Member is arranged, using the first queue corresponding to the target second queue member as the target first queue.
Optionally, in the presence detection method, the second queue includes head member and tail portion member；
It is described at interval of the assay intervals when long circulating successively using a member in the second queue as target
The step of second queue member includes：
Pointer object is directed toward the member of a second queue every the assay intervals duration successively, by the pointer
The member for the second queue that object is directed toward is as the target second queue member, by the target second queue member couple
The first queue answered is as the target first queue；
When the pointer object is directed toward the tail portion member, the pointer object is after being spaced the assay intervals duration
Again it is directed toward the head member.
Optionally, judge whether the terminal keeps online according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
Step is：
When the Lungs from Non-Heart-Beating packet duration is more than the detection time-out time, then judge that the terminal keeps presence；
When the Lungs from Non-Heart-Beating packet duration is not above the detection time-out time, then judge that the terminal is not maintained at line
State.
Optionally, the presence detection method further includes：It is obtained for each online terminal and records the terminal
The Lungs from Non-Heart-Beating packet duration.
Optionally, the presence detection method further includes：
When detect in the first queue there are the Lungs from Non-Heart-Beating packet duration be more than it is described detection time-out time terminal
When, the information of the terminal is deleted from the first queue.
Optionally, the presence detection method further includes, when receiving the offline information of terminal, by the terminal
Information is deleted from the first queue.
Optionally, in the presence detection method, 1 second a length of, the detection time-out time when assay intervals
It it is 10 seconds, the quantity of the first queue is 10.
The another object of the application is to provide a kind of presence detection device, applied to server, the server
The quantity of multiple first queues configured with the information for preserving terminal, the first queue is preset detection time-out time and inspection
Survey the quotient of interval duration；
The presence detection device includes：
First searching module, long circulating successively will be in the multiple first queue when at interval of the assay intervals
One is used as target first queue；
State detection module, for for each terminal recorded in the target first queue, acquisition not to receive this
The duration for the heartbeat packet that terminal is sent is as Lungs from Non-Heart-Beating packet duration, according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
Judge whether the terminal keeps online；
Information add module, for when detecting the terminal newly reached the standard grade, by the information storage of the terminal newly reached the standard grade
Into current target first queue.
Optionally, the server is also configured with second queue, the member of the second queue and the first queue one
One corresponds to；The presence detection device further includes the second searching module, and second searching module is used for every the inspection
Long circulating is successively using a member in the second queue as target second queue member when surveying interval, by the target the
The corresponding first queue of two queue members is as the target first queue.
In terms of existing technologies, the application has the advantages that：
In the application, end message is preserved using multiple first queues, and long circulating successively will when assay intervals
One in multiple first queues is used as target first queue, is obtained according to the end message preserved in the target first queue
The Lungs from Non-Heart-Beating packet duration of each terminal in the target first queue, whether to judge the corresponding terminal of the Lungs from Non-Heart-Beating packet duration
For presence；And detect the target first queue；When detecting the terminal newly reached the standard grade, by the terminal newly reached the standard grade
In information storage to the target first queue.So so that the terminal in detected first queue is all that there may be nothings
Heart time is more than detection time-out time, to reduce CPU (Central in presence detection process
Processing Unit/Processor, central processing unit) resource consumption, improve presence detection efficiency.
Description of the drawings
It, below will be to needed in the embodiment attached in order to illustrate more clearly of the technical solution of the embodiment of the present application
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the flow diagram of presence detection method provided by the embodiments of the present application；
Fig. 2 is the high-level schematic functional block diagram of presence detection device provided by the embodiments of the present application；
Fig. 3 is the structural schematic diagram of circle queue provided by the embodiments of the present application；
Fig. 4 is the corresponding schematic diagram of t1 moment circle queue and first queue provided by the embodiments of the present application；
Fig. 5 is the corresponding schematic diagram of t2 moment circle queue and first queue provided by the embodiments of the present application；
Fig. 6 is the corresponding schematic diagram of t3 moment circle queue and first queue provided by the embodiments of the present application.
Icon：The first searching modules of 110-；111- state detection modules；112- information add modules；113- second is searched
Module.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiments herein to providing in the accompanying drawings be not intended to limit it is claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model of the application protection
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present application, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot understand
To indicate or implying relative importance.
As shown in Figure 1, Fig. 1 is the flow diagram for the presence detection method that the application preferred embodiment provides.
The presence detection method of the application, is applied to server, and the server is configured with for preserving terminal
Multiple first queues of information, the quantity of the first queue are the quotient of preset detection time-out time and assay intervals duration.
Detection time-out time refers to preset for judging that how long not receiving terminal heartbeat packet judges that the terminal keeps not online
The duration of state.Since assay intervals duration refer to detecting a queue, to starting to detect the time between next queue
Length, the interval time that assay intervals duration is also sent between two neighboring heartbeat packet with terminal are equal.
The method includes：
Step S110, long circulating is successively by a conduct in the multiple first queue when at interval of the assay intervals
Target first queue.In this way, after queue included in first queue has all been detected, again since first queue most
When detected queue start, the queue in first queue is detected successively at interval of an assay intervals duration, to,
Each queue in first queue is that one, interval detection time-out time is re-used as target first queue.
Step S111, for each terminal recorded in the target first queue, acquisition does not receive terminal transmission
Heartbeat packet duration as Lungs from Non-Heart-Beating packet duration, which is judged according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
Whether end keeps online.
When the Lungs from Non-Heart-Beating packet duration of each detection terminal, examined for each terminal recorded in target first queue
It surveys, without being detected to the first queue other than target first queue, the money of CPU when can reduce each presence detection
Source consumes, and improves the efficiency of presence detection.
Step S112, when detecting the terminal newly reached the standard grade, by the information storage of the terminal newly reached the standard grade to current
In target first queue.
In this step, when detecting the terminal newly reached the standard grade, the terminal newly reached the standard grade is stored in current be detected
In target first queue.Since the quantity of first queue is equal to the quotient of detection time-out time and assay intervals duration, instantly
When the target first queue that secondary re-inspection is currently detected, the terminal in the target first queue is all that there may be Lungs from Non-Heart-Beating packets
Duration is more than or equal to detection time-out time, i.e. terminal time-out.
Therefore, long circulating is successively using first queue as target first team when the present embodiment is due to every minor tick assay intervals
It arranges and target first queue is detected, so so that the terminal in detected target first queue is all to exist every time
Time-out possible terminal all examines all terminals of storage in the queue when without used in the overtime terminal of each detection
It surveys, the consumption of cpu resource can be reduced, improve the efficiency of presence detection.
In order to facilitate searching first queue, in the present embodiment, optionally, and in the presence detection method, the clothes
Second queue is also configured in business device, the member of the second queue corresponds with the first queue.
It is described at interval of the assay intervals when long circulating successively by one in the multiple first queue be used as target
The step of first queue includes,
Long circulating is successively using a member in the second queue as the second team of target when the assay intervals
Member is arranged, using the first queue corresponding to the target second queue member as the target first queue.
In the present embodiment, the queue in the member and first queue of second queue is corresponded, will be in first queue
Queue as target first queue when, as long as finding the member of two queues corresponding with target first queue.
In the present embodiment, optionally, in the presence detection method, the second queue include head member and
Tail portion member.
It is described at interval of the assay intervals when long circulating successively using a member in the second queue as target
The step of second queue member includes：
Pointer object is directed toward the member of a second queue every the assay intervals duration successively, by the pointer
The member for the second queue that object is directed toward is as the target second queue member, by the target second queue member couple
The first queue answered is as the target first queue.
When the pointer object is directed toward the tail portion member, the pointer object is after being spaced the assay intervals duration
Again it is directed toward the head member.
Certainly, if it is in initialization procedure, then pointer object is directed toward head member in initialization, then carried out again
Following steps：Pointer object is directed toward the member of a second queue every the assay intervals duration successively, by the finger
For the second queue as direction member as the target second queue member, by the target second queue member
The corresponding first queue is as the target first queue.
When the pointer object is directed toward the tail portion member, the pointer object is after being spaced the assay intervals duration
Again it is directed toward the head member.
In the present embodiment, it configures second queue to circle queue, makes the queue member of circle queue and multiple first teams
Row correspond.Target second queue member is determined using pointer object, and when pointer object is directed toward the tail portion member,
Pointer object is set to be directed toward tail portion member again after the assay intervals duration of interval.
Due to the terminal after reaching the standard grade, if being held in the state of line, constantly heartbeat packet can be sent to server.Therefore this
In embodiment, optionally, judge whether the terminal keeps online according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
The step of be：
When the Lungs from Non-Heart-Beating packet duration is more than the detection time-out time, then judge that the terminal keeps presence.
When the Lungs from Non-Heart-Beating packet duration is not above the detection time-out time, then judge that the terminal is not maintained at line
State.
Judge whether terminal keeps online by the way that whether comparison Lungs from Non-Heart-Beating packet duration is more than detection time-out time, there is letter
Just quick feature.
In the present embodiment, optionally, the presence detection method further includes：It is obtained simultaneously for each online terminal
Record the Lungs from Non-Heart-Beating packet duration of the terminal.The Lungs from Non-Heart-Beating packet duration that terminal is obtained and recorded using individual thread, is made
Must obtain and record the Lungs from Non-Heart-Beating packet duration of terminal and the Lungs from Non-Heart-Beating packet duration of detection terminal can be carried out at the same time.
In the present embodiment, optionally, the presence detection method further includes：
When detect in the first queue there are the Lungs from Non-Heart-Beating packet duration be more than it is described detection time-out time terminal
When, the information of the terminal is deleted from the first queue.
The present embodiment can ensure first team by deleting the information for being not held in the terminal of line from first queue
What is stored in row is all to maintain the information of online terminal, to avoid the information content mistake of stored terminal in first queue
Greatly so that in detection terminal, the terminal detected will not have determined as the terminal for being not maintained at line, to improve
The efficiency of line state-detection, the resource consumption and memory space of CPU when reducing presence detection.
In the present embodiment, optionally, the presence detection method further includes step S113, when receiving terminal
When offline information, the information of the terminal is deleted from the first queue.Existed to delete terminal according to the offline information of terminal
Corresponding informance in first queue in time can delete the information of terminal when terminal is offline from first queue, to,
When detecting the terminal in first queue, offline terminal will not be detected.In this way, further improving presence detection
Efficiency, the resource consumption and memory space of CPU when reducing presence detection.
In the present embodiment, optionally, in the presence detection method, 1 second a length of, the inspection when assay intervals
It is 10 seconds to survey time-out time, and the quantity of the first queue is 10.
As shown in Fig. 2, Fig. 2 is the flow diagram for the presence detection method that the application preferred embodiment provides.
The presence detection device of the application is applied to server, and the server is configured with the information for preserving terminal
Multiple first queues, the quantity of the first queue is the quotient of preset detection time-out time and assay intervals duration.Detection
Time-out time refer to it is preset for judge how long do not receive terminal heartbeat packet, that is, judge the terminal be holding not in threadiness
The duration threshold value of state.Assay intervals duration refer to since detecting a queue, to start to detect between next queue when
Between length.Multiple first queues of the information of terminal are preserved in configuration in server, are matched it is not necessary that individual structure is in addition arranged
Set first queue.
The presence detection device includes：
First searching module 110, long circulating is successively by the multiple first queue when at interval of the assay intervals
In one be used as target first queue.
The first searching module 110 in the application is for executing step S110 shown in Fig. 2
State detection module 111, for for each terminal recorded in the target first queue, acquisition not to receive
The duration for the heartbeat packet that the terminal is sent is as Lungs from Non-Heart-Beating packet duration, when according to the detection time-out time and the Lungs from Non-Heart-Beating packet
Length judges whether the terminal keeps online.
State detection module 111 in the application is for executing step S111 shown in Fig. 2.
Information add module 112, for when detecting the terminal newly reached the standard grade, the information of the terminal newly reached the standard grade to be deposited
It stores up in current target first queue.
Information add module 112 in the application is for executing step S112 shown in Fig. 2.
Optionally, the server is also configured with second queue, the member of the second queue and the first queue one
One corresponds to；The presence detection device further includes the second searching module 113, second searching module 113 be used for every
Long circulating, will be described successively using a member in the second queue as target second queue member when the assay intervals
The corresponding first queue of target second queue member is as the target first queue.
One is done to online test method described herein below in conjunction with a specific terminal on-line checking process
Detailed description.
In terminal presence detection process, assay intervals duration is set as 1 second, i.e., terminal every 1 second to service
Device sends a heartbeat packet.It sets detection time-out time to 10 seconds, detection time-out time divided by assay intervals duration is obtained
The quantity of first queue is 10.As shown in figure 3, setting second queue, makes the number of members of second queue and the team of first queue
Columns is equal, i.e., 10, sets second queue to circle queue.Second queue include head member (head), tail portion at
Member (tail), meanwhile, setting pointer object (cur) is directed toward the element of circle queue.Each member in circle queue is set to distinguish
A corresponding first queue.Since the head member of circle queue, until the tail portion member of circle queue, to circle queue
Each member is from 0,1,2,3,4,5,6,7,8,9 number consecutively.
When initialization, pointer object is directed toward to the head member (queue member that number is 0) of circle queue.
After initialization, pointer object every assay intervals duration be directed toward next queue of queue member for currently pointing at
Member, i.e., the next queue member for the queue member being directed toward current pointer object every assay intervals duration is as target second
Queue member.
As shown in figure 4, the t1 moment after initialization, pointer object is directed toward the member that number is 5.In circle queue, number
It is stored with the information of terminal C2_0, C2_1 for the 2 corresponding first queue of member.The corresponding first queue of member that number is 3
It is stored with the information of terminal C3_0, C3_1.The corresponding first queue of member that number is 5 is stored with the letter of terminal C5_0, C5_1
Breath.At this point, detect that terminal C5_2 reaches the standard grade, then, by the information preservation of terminal C5_2 number be 5 member corresponding to the
The queue tail of one queue.At the time of t1 plus 1 second, pointer object is then directed toward the member that number is 6.
As shown in figure 5, the t2 moment (at the time of t1 adds 7 seconds), pointer object is directed toward the member that number is 2, at this point, number is
The information of terminal C2_0, C2_1, C2_2, C2_3 has been stored in first queue corresponding to 2 member.Therefore, the t2 moment,
The terminal that the first queue corresponding to member that detection number is 2 preserves, i.e. detection terminal C2_0, C2_1, C2_2, C2_3.
T3 moment, pointer object are directed toward the member (tail portion member) that number is 9, at this point, corresponding to the member for being 9 to number
First queue in terminal be detected.At the time of t3 plus 1 second, pointer object be directed toward number be 0 member (head at
Member), then, pointer object was directed toward next member of member pointed by current pointer successively every 1 second again.
At the t4 moment, the first queue corresponding to the circle queue is as shown in Figure 6.At this point, number is 1 in circle queue
The corresponding first queue of member be stored with the information of terminal C1_0, C1_1.The member corresponding that number is 2 in circle queue
One queue is stored with the information of terminal C2_0, C2_1, C2_2, C2_3.The corresponding first team of member that number is 3 in circle queue
Row are stored with the information of terminal C3_0, C3_1.The corresponding first queue of member that number is 4 in circle queue is stored with terminal
The information of C4_0, C4_1.The corresponding first queue of member that number is 5 in circle queue is stored with terminal C5_0, C5_1, C5_2
Information.The corresponding first queue of member that number is 6 in circle queue is stored with the information of terminal C6_0, C6_1.Annular team
The corresponding first queue of member that number is 7 in row is stored with the information of terminal C7_0, C7_1.Number is 8 in circle queue
The corresponding first queue of member is stored with the information of terminal C8_0, C8_1.
In conclusion the application preserves end message using multiple first queues, and successively every assay intervals duration
It regard one in multiple first queues as target first queue, is obtained according to the end message preserved in the target first queue
The Lungs from Non-Heart-Beating packet duration for taking each terminal in the target first queue, to judge that the corresponding terminal of the Lungs from Non-Heart-Beating packet duration is
No is presence；And detect the target first queue；When detecting the terminal newly reached the standard grade, by the terminal newly reached the standard grade
Information storage to the target first queue in.So so that detected first queue is all that there may be Lungs from Non-Heart-Beating packets
Duration is more than detection time-out time, to reduce the resource consumption of the CPU in presence detection process, improve clothes
The response efficiency of business device.
In embodiment provided herein, it should be understood that disclosed device and method, it can also be by other
Mode realize.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are shown
According to the device, the architectural framework in the cards of method and computer program product, function of multiple embodiments of the application
And operation.In this regard, each box in flowchart or block diagram can represent one of a module, section or code
Point, a part for the module, section or code includes one or more for implementing the specified logical function executable
Instruction.It should also be noted that at some as in the realization method replaced, the function of being marked in box can also be attached to be different from
The sequence marked in figure occurs.For example, two continuous boxes can essentially be basically executed in parallel, they also may be used sometimes
To execute in the opposite order, this is depended on the functions involved.It is also noted that each of block diagram and or flow chart
The combination of box in box and block diagram and or flow chart, function or the dedicated of action are based on as defined in execution
The system of hardware is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each function module in each embodiment of the application can integrate to form an independent portion
Point, can also be modules individualism, can also two or more modules be integrated to form an independent part.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer read/write memory medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of step.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above, the only specific implementation mode of the application, but the protection domain of the application is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the application discloses, and should all contain
It covers within the protection domain of the application.Therefore, the protection domain of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of presence detection method, which is characterized in that be applied to server, the server is configured with for preserving end
The quantity of multiple first queues of the information at end, the first queue is preset detection time-out time and assay intervals duration
Quotient, the method includes：
Long circulating regard one in the multiple first queue as target first queue successively when at interval of the assay intervals；
For each terminal recorded in the target first queue, the duration for the heartbeat packet for not receiving terminal transmission is obtained
As Lungs from Non-Heart-Beating packet duration, judge whether the terminal is maintained at according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
Line；
When detecting the terminal newly reached the standard grade, by the information storage of the terminal newly reached the standard grade to current target first queue
In.
2. presence detection method according to claim 1, which is characterized in that be also configured with second in the server
Queue, the member of the second queue correspond with the first queue；
It is described at interval of the assay intervals when long circulating be used as target first by one in the multiple first queue successively
The step of queue includes,
When the assay intervals long circulating successively using a member in the second queue as target second queue at
Member, using the first queue corresponding to the target second queue member as the target first queue.
3. presence detection method according to claim 2, which is characterized in that the second queue includes head member
With tail portion member；
It is described at interval of the assay intervals when long circulating successively using a member in the second queue as target second
The step of queue member includes：
Pointer object is directed toward the member of a second queue every the assay intervals duration successively, by the pointer object
The member for the second queue being directed toward is corresponding by the target second queue member as the target second queue member
The first queue is as the target first queue；
When the pointer object is directed toward the tail portion member, the pointer object after being spaced the assay intervals duration again
It is directed toward the head member.
4. presence detection method according to claim 1, which is characterized in that according to the detection time-out time and institute
It states Lungs from Non-Heart-Beating packet duration and judges whether the terminal keeps the online step to be,
When the Lungs from Non-Heart-Beating packet duration is more than the detection time-out time, then judge that the terminal keeps presence；
When the Lungs from Non-Heart-Beating packet duration is not above the detection time-out time, then judge that the terminal is not maintained at threadiness
State.
5. presence detection method according to claim 1, which is characterized in that the presence detection method is also wrapped
It includes：The Lungs from Non-Heart-Beating packet duration of the terminal is obtained and recorded for each online terminal.
6. presence detection method according to claim 1, which is characterized in that the presence detection method is also wrapped
It includes：
It, will when detecting that there are the Lungs from Non-Heart-Beating packet durations more than the terminal for detecting time-out time in the first queue
The information of the terminal is deleted from the first queue.
7. presence detection method according to claim 1, which is characterized in that the presence detection method is also wrapped
It includes, when receiving the offline information of terminal, the information of the terminal is deleted from the first queue.
8. according to claim 1-7 any one of them presence detection methods, which is characterized in that the assay intervals duration
It it is 1 second, the detection time-out time is 10 seconds, and the quantity of the first queue is 10.
9. a kind of presence detection device, which is characterized in that be applied to server, the server is configured with preservation terminal
Multiple first queues of information, the quantity of the first queue are the quotient of preset detection time-out time and assay intervals duration；
The presence detection device includes：
First searching module, long circulating is successively by one in the multiple first queue when at interval of the assay intervals
As target first queue；
State detection module, for for each terminal recorded in the target first queue, acquisition not to receive the terminal
The duration of the heartbeat packet of transmission judges as Lungs from Non-Heart-Beating packet duration according to the detection time-out time and the Lungs from Non-Heart-Beating packet duration
Whether the terminal keeps online；
Information add module, for when detecting the terminal newly reached the standard grade, by the information storage of the terminal newly reached the standard grade to working as
In preceding target first queue.
10. presence detection device according to claim 9, which is characterized in that the server is also configured with second
Queue, the member of the second queue correspond with the first queue；The presence detection device further includes second
Searching module, second searching module be used for when the assay intervals long circulating successively by one in the second queue
A member is as target second queue member, using the corresponding first queue of the target second queue member as the mesh
Mark first queue.
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