CN110399229A

CN110399229A - Communication means, device, system, medium and terminal between process

Info

Publication number: CN110399229A
Application number: CN201810380885.0A
Authority: CN
Inventors: 胡事民; 陈波; 张明远; 刘荐; 柴晓杰; 解洪文; 谭闻德; 王瑀屏; 胡旭强
Original assignee: Tsinghua University; Tencent Technology Shenzhen Co Ltd
Current assignee: Tsinghua University; Tencent Technology Shenzhen Co Ltd
Priority date: 2018-04-25
Filing date: 2018-04-25
Publication date: 2019-11-01

Abstract

The embodiment of the invention discloses communication means, device, medium, system and the terminals between a kind of process, wherein, this method comprises: receiving the socket connection request that subscription end process is sent, socket is established with the subscription end process according to the socket connection request and is connect；The target message content issued will be needed to be written to shared section key, and obtain address of the target message content in the shared section key；The address is transmitted to the subscription end process by the socket, so that the subscription end process reads the target message content according to the address from the shared section key, the resource overhead of operating system can be reduced, and reduce the propagation delay time of message content, the handling capacity for improving message content transmission, realizes the synchronization of message content.

Description

Communication means, device, system, medium and terminal between process

Technical field

The present invention relates to the communication means, logical between a kind of process between field of computer technology more particularly to a kind of process Communication system, a kind of computer storage medium and a kind of terminal between T unit, a kind of process.

Background technique

Process is the basic unit that operating system carries out Resource Distribution and Schedule, and each process is owned by oneself independent money Source needs to be communicated between process to make can mutually to access resource and co-ordination between process.Interprocess communication (Interprocess Communications, IPC), which refers to, propagates between different processes or exchanges message.Practice discovery, mesh There are message contents, and synchronization can not be realized between process for preceding inter-process communications schemes, needs to carry out frequency to operating system nucleus Numerous access and the problems such as occupy a large amount of process resources, influence communication delay and handling capacity, therefore, how preferably to realize into Communication becomes an important research topic between journey.

Summary of the invention

The technical problem to be solved by the embodiment of the invention is that communication means, device, Jie between providing a kind of process Matter, system and terminal, can reduce the resource overhead of operating system, and reduce the propagation delay time of message content, improve message content The handling capacity of transmission realizes the synchronization of message content.

On the one hand, the embodiment of the invention provides the communication means between a kind of process, this method comprises:

The socket connection request that subscription end process is sent is received, the socket connection request carries publishing side process The mark of mark and the subscription end process；The mark of the publishing side process is by the subscription end process from the publishing side It is obtained in the broadcast message that process is sent, or obtained from center process；

Socket is established with the subscription end process according to the socket connection request to connect；

The target message content issued will be needed to be written to shared section key, and obtain the target message content described Address in shared section key；

The address is transmitted to the subscription end process by the socket, so that the subscription end process is according to institute It states address and reads the target message content from the shared section key.

Socket connection request is sent to publishing side process, foundation is connect with the socket of the publishing side process；It is described Socket connection request carries the mark of the publishing side process and the mark of subscription end process；The mark of the publishing side process It is to be obtained from the broadcast message that the publishing side process is sent, or it is obtained from center process；

The address that the publishing side process is sent by the socket is received, the address is that the publishing side process will The target message content for needing the to issue target message content acquired after being written to shared section key is described shared interior Deposit the address in area；

The target message content is read from the shared drive according to the address.

On the one hand, the embodiment of the invention provides the communication device between a kind of process, which includes:

Connection unit is asked for receiving the socket connection request of subscription end process transmission according to socket connection It asks and establishes socket with the subscription end process and connect；The socket connection request carries the mark of publishing side process and described The mark of subscription end process；The mark of the publishing side process is to be sent by the subscription end process from the publishing side process It is obtained in broadcast message, or obtained from center process.

Writing unit, the target message content for that will need to issue is written to shared section key, and obtains the target Address of the message content in the shared section key.

Transmission unit, for the address to be transmitted to the subscription end process by the socket, so that described order It reads end process and reads the target message content from the shared section key according to the address.

Connection unit establishes the set with the publishing side process for sending socket connection request to publishing side process Connect word connection；The socket connection request carries the mark of the publishing side process and the mark of subscription end process；The hair The mark of cloth end process is to obtain from the broadcast message that the publishing side process is sent, or obtained from center process 's.

Receiving unit, the address sent for receiving the publishing side process by the socket, the address is institute Stating publishing side process will be in the target message that the target message content issued be needed acquired after being written to shared section key Hold the address in the shared section key.

Reading unit, for reading the target message content from the shared drive according to the address.

On the one hand, the embodiment of the invention provides the communication system between a kind of process, which includes publishing side process, orders Read end process and shared section key:

The publishing side process, the socket connection request sent for receiving the subscription end process, the socket Connection request carries the mark of publishing side process and the mark of the subscription end process；The mark of the publishing side process is by institute State what subscription end process was obtained from the broadcast message that the publishing side process is sent, or obtained from center process；Root Socket is established with the subscription end process according to the socket connection request to connect；The target message content issued will be needed to write Enter to shared section key, and obtains address of the target message content in the shared section key；The address is passed through The socket is transmitted to the subscription end process.

The subscription end process, for publishing side process send socket connection request, establish with the publishing side into The socket of journey connects；The address that the publishing side process is sent by the socket is received, according to the address from described The target message content is read in shared drive.

The shared section key, for storing the target message content of the publishing side process write-in.

On the one hand, the embodiment of the invention provides a kind of computer storage mediums, which is characterized in that the computer storage Media storage has one or one or more first instruction, and described one or one or more first instruction are suitable for by processor load simultaneously Execute following method:

The address is transmitted to the subscription end process by the socket so that at least one described subscription end into Journey reads the target message content according to the address from the shared section key.

Alternatively, the computer storage medium be stored with one or one or more second instruction, described one or one with Upper second instruction is suitable for being loaded by processor and executing following method:

Socket connection request is sent to publishing side process, foundation is connect with the socket of the publishing side process；It is described Socket connection request carries the mark of the publishing side process and the mark of subscription end process；The mark of the publishing side process It is to be obtained from the broadcast message that the publishing side process is sent by the subscription end process, or obtained from center process 's；

On the one hand, the embodiment of the invention provides a kind of terminal, which includes: processor, is adapted for carrying out one or one Above instructions；And computer storage medium, the computer storage medium are stored with one or one or more first finger Enable, described one or one or more first instruction be suitable for loaded by processor and execute following method:

In the embodiment of the present invention, publishing side process is established socket with subscription end process and is connect, the target that needs are issued Message content is written to shared section key, and is sent to the target message content in the address of shared section key by socket Subscription end process can be according to the address that publishing side process is sent from altogether when subscription end process needs to read the message content It enjoys and reads the message content in memory field.As it can be seen that the embodiment of the present invention only needs to carry out message content in shared section key Copy, without continually being copied in kernel and buffer area, reduces the copy number of message content, can reduce operation The resource overhead of system, and the propagation delay time of message content is reduced, improve the handling capacity of message content transmission.And pass through socket Message content is sent to subscription end process in the address of shared section key in real time, so that subscription end process can obtain in real time The message content of publishing side process write-in is got, it can be achieved that the message content between subscription end process and publishing side process is synchronous.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is the configuration diagram of the communication system between a kind of process provided in an embodiment of the present invention；

Fig. 2 is the flow diagram of the communication means between a kind of process provided in an embodiment of the present invention；

Fig. 3 is the flow diagram of the communication means between another process provided in an embodiment of the present invention；

Fig. 4 is the flow diagram of the communication means between another process provided in an embodiment of the present invention；

Fig. 5 is the flow diagram of the communication means between another process provided in an embodiment of the present invention；

Fig. 6 is a kind of schematic diagram of shared section key provided in an embodiment of the present invention；

Fig. 7 is the flow diagram of the communication means between another process provided in an embodiment of the present invention；

Fig. 8 is the structural schematic diagram of the communication device between a kind of process provided in an embodiment of the present invention；

Fig. 9 is the structural schematic diagram of the communication device between another process provided in an embodiment of the present invention；

Figure 10 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Process is the primary operation activity of the program in computer；In other words, process is the entity of program, is to transport The example of capable program；Such as: it is currently running instant messaging application program in terminal, has been opened then can view in the terminal The process of the instant messaging application program moved and be currently running.Terminal can run multiple application programs simultaneously, therefore in terminal The process of multiple application programs can be existed simultaneously；In some scenarios, there are communication requirement, examples between multiple processes in terminal Such as: in terminal simultaneously operation have camera shooting process and face recognition process, then, in human bioequivalence scene, need image into It is communicated between journey and face recognition process, provides the facial image taken by camera shooting process, obtained by face recognition process The facial image is obtained to carry out recognition of face processing.In the embodiment of the present invention, publishing side process refers to be mentioned by giving out information For the process of service, subscription end process refers to the process for subscribing to messaging service；In above-mentioned recognition of face scene, camera shooting process is made For publishing side process, face recognition process is as subscription end process.Currently, the communication means between process is specifically included that based on set Connect the inter-process communication methods, the inter-process communication methods based on message queue and the interprocess communication based on shared section key of word Method below will briefly introduce several method:

(1) based on the inter-process communication methods of socket: the main advantage of the method is to may be implemented and network socket Word interface is compatible with substantially, does not need to be concerned about other side's process and itself be in same computer between two processes communicated In, or in the same network environment, and it is capable of providing unified software module communication interface.But there is also following deficiencies: Firstly, socket communication is one-to-one, communication of the Yao Shixian M to N, then needs M × N to socket, occupy a large amount of system moneys Source；Secondly, the inter-process communication methods based on socket need publishing side process to copy into message content to buffer area, then from Buffer area copies into message content in kernel, subscription end process need message content from kernel by message content copy into Then buffer area is copied out from buffer area by the message content, continually copy message content and do not only take up processor resource, also tight Ghost image rings message transmission delay and message throughput of transmissions.

(2) based on the inter-process communication methods of message queue: compared to the inter-process communication methods based on socket, based on disappearing Character stream communication may be implemented in the inter-process communication methods of breath queue, is able to maintain message boundaries.But lead between realization process There is still a need for continually copied message content between buffer area-kernel-buffer area during letter.In addition, though disappearing It ceases queue and supports multi-to-multi interprocess communication, but multiple subscription end processes actually need to fight for message content, i.e., one subscription After end process reads certain message content, which cannot be read by other subscription end processes, therefore be not appropriate for disappearing Cease the mode of content publication.

(3) based on the inter-process communication methods of shared section key: by providing an addressable shared drive of multi-process Area is to realize the interprocess communication of multi-to-multi.The copy number that message content can be reduced, reduces the propagation delay time of message content.But Based on the inter-process communication methods of shared section key, there is also deficiencies, essentially consist in shortage synchronization mechanism, i.e. publishing side process lacks Weary effective ways notice subscription end process has new message content to be written to shared section key.

To sum up, the inter-process communication methods based on socket and the inter-process communication methods based on message queue have preferably Synchronization mechanism, but message content needs continually copied in buffer area-kernel-buffer area, increase operating system Resource overhead, and cause the propagation delay time of message content larger, reduce the handling capacity of message content transmission；And it is based on shared drive In the inter-process communication methods in area although message content does not need to copy into kernel and buffer area, but is a lack of synchronization mechanism. As it can be seen that various inter-process communication methods of above-mentioned single mode or there are the resource overhead of operating system is larger, message content Propagation delay time it is higher, the problems such as message content throughput of transmissions is lower or there are problems that lacking synchronization mechanism.These are asked The main reason for topic generates is caused by the variation of application scenarios.The interprocess communication of early stage more considers one-to-one logical Believe (i.e. a publishing side process is to a subscription end process) demand, the message content of interaction is simply single between process；Therefore on The inter-process communication methods for stating single mode are more suitable in the simple communication scene that early stage this complexity is low, handling capacity is low. But with the promotion of software systems complexity, in the case where being isolated in the form of process between software module, produce it is more more Complicated communication requirement requires the more more complicated message contents of interaction such as in One-to-one communication scene, or requires to realize Many-many communication etc.；For example, robot system scene has multiple high-definition cameras, each high-definition camera shooting Image data can be by multiple software modules pair such as recognition of face, human bioequivalence, gesture identification, gesture recognition, object identification Acquired in the process answered；Each high-definition camera is a publishing side process, and the corresponding process of each software module is then One subscription end process；The many-many communication of realization high-throughput is required under the robot system scene.Above-mentioned single mode Various inter-process communications schemes can not be adapted to the communication scenes of this complexity, cannot achieve the communication field of high-throughput Scape.

Based on this, the embodiment of the present invention provides the communication plan between a kind of process, specifically: it needs to send out in publishing side process When cloth message content, publishing side process is established socket with subscription end process and is connect, and the target message content issued will be needed to write Enter to shared section key, and by socket by the target message content the address of shared section key be sent to subscription end into Journey can be according to the address that publishing side process is sent from shared section key when subscription end process needs to read the message content Middle reading message content.As it can be seen that the embodiment of the present invention is flexibly compatible with the inter-process communication techniques of a variety of mainstreams, in shared It deposits and realizes interprocess communication with the advantage of socket.Firstly, the storage of message content is carried out using shared section key, in this way, Message content only needs to be copied in shared section key, without being copied in kernel and buffer area, reduces and disappears The copy number for ceasing content, can reduce the resource overhead of operating system, and reduce the propagation delay time of message content；Secondly, publication Socket connection is established between end process and subscription end process, publishing side process can pass through socket after the content that gives out information Message content is shared to subscription end process in the address of shared section key in real time by word, in this way, subscription end process can be real-time Ground gets the message content of publishing side process write-in, to realize in the message between subscription end process and publishing side process Hold and synchronizes.In conclusion the embodiment of the present invention solves the problems of the inter-process communication methods of single mode, effectively subtract The resource overhead for having lacked operating system promotes the propagation delay time and transmission throughput of message content, solves disappearing between process Stationary problem is ceased, the communication scenes that complexity is high, handling capacity is high are more suitable for.

In the embodiment of the present invention, publishing side process refers to that the process for the content that gives out information, subscription end process refer to that reading disappears Cease the process of content.Publishing side process and subscription end process be it is opposite, i.e., in some scenarios, same process both can be used as Publishing side process gives out information content, can also be used as the message content that subscription end process reads the publication of other processes；Citing comes It says, under the scene that recognition of face carries out terminal booting, firstly, camera shooting process publication image data (i.e. message content), face Identification process reads the image data of camera shooting process publication, and carries out recognition of face according to image data, obtains recognition result；In In this case, camera shooting process is as publishing side process, face recognition process is as subscription end process；Secondly, face recognition process Recognition result is issued, booting process reads the recognition result and controlling terminal boots up.In the case, face recognition process As publishing side process, the process that is switched on is as subscription end process.As it can be seen that face recognition process is both used as and orders in above-mentioned scene End process is read, and as publishing side process.It should be noted that the same subscription end process can be ordered in the embodiment of the present invention The message content that multiple publishing side processes are issued is read, the message content that the same publishing side process is issued can be ordered by multiple End is read to subscribe to.

Based on foregoing description, the embodiment of the present invention provides the communication system between a kind of process, which can be set It is placed in the operating system of terminal, terminal herein includes at least memory, display or processor.Referring to Figure 1, the communication System includes at least one publishing side process and at least one subscription end process.Fig. 1 is for two, publishing side process therein Including publishing side process P1 and publishing side process P2, subscription end process therein includes subscription end process S1 and subscription end process S2.It, can be by calling the task manager of terminal to check the publishing side having been turned on after each process is activated in an operating system Process and subscription end process.

The communication system further includes shared section key 10.Shared section key refers in the computer system of multiprocessor, The large capacity memory that can be accessed by different central processing units.The memory space of shared section key 10 shown in FIG. 1 can be from It is distributed in the memory of terminal, the capacity (i.e. the amount of storage size of memory space) of shared section key can be by terminal according to handling up The automatic setting of amount, can also be by user's manual setting.Shared section key 10 is equivalent to publishing side process and subscription end process carries out The intermediate medium of interactive information；Specifically: in the message that publishing side process P1 or/and publishing side process P2 can issue needs Appearance is written to shared section key 10, and subscription end process S1 or/and subscription end process S2 can read hair from shared section key 10 The message content of cloth end process write-in.

In one embodiment, communication system shown in FIG. 1 can be applied to One-to-one communication scene；The pair of one Communication scenes refer to the scene communicated between a publishing side process and a subscription end process.Between one-to-one process In communication scenes, below by taking the communication between publishing side process P1 and subscription end process S1 as an example, the work of the communication system is former Reason generally comprises: the issuing process of message content and the reading process of message content.As shown in Fig. 2, the publication of the message content Process includes:

S11, publishing side process initialization.

Publishing side process P1 initialization includes: the socket connection request of publishing side process P1 processing subscription end process S1, Shared section key is opened with trial.It gives out information content in order to not influence publishing side process P1, it can be by publishing side process P1's Independent thread handles the socket connection request of subscription end process S1, i.e., independent thread builds according to socket connection request It is vertical to be connect with the socket of subscription end process S1, and opening operation is executed to the shared section key, if it is shared interior successfully to open this Area is deposited, then the message content to be written such as, if opening failure, creates shared section key.

S12, publishing side process issue target message content.

It is that the target message content assignment is empty that publishing side process P1 publication target message content, which includes: in shared section key, Between, if being allocated successfully, message content is written in the shared section key, and obtain the address of the message content, passes through socket Address of the message content in shared drive is sent to subscription end process S1.

S13, publishing side process exit.

Publishing side process P1 can exit shared section key after target message content is written, and exit shared section key packet It includes: detecting whether to need to remove shared section key, specifically, publishing side process P1 detection is currently with the presence or absence of other process (packets Include publishing side process or subscription end process) it has opened and has not exited shared section key；If it exists, show there is process to be used altogether Memory field is enjoyed, then does not remove all message contents that shared section key is stored；If it does not exist, show to make currently without process With shared section key, then all message contents that shared section key is stored can be removed, it is empty with the storage for discharging shared section key Between.

As shown in figure 3, the reading process of message content includes:

S21, subscription end process initialization.

Subscription end process S1 initialization, which includes: subscription end process S1, sends socket connection request to publishing side process P1, It is connect with establishing with the socket of publishing side process P1.Establishing socket attended operation can be by the center process of communication system It realizes, can also be realized by the concatenate rule of local socket path, web socket port, the present invention is unlimited to this It is fixed.

For example, if subscription end process starts before publishing side process in communication system, publishing side process can It is broadcast the message with being sent by local socket path to each subscription end process, which includes publishing side process P1 Mark and publishing side process P1 service description information, service description information for describe publishing side process P1 be capable of providing it is assorted The message content of sample.Subscription end process S1 according to the broadcast message that publishing side process is issued judge whether to subscribe to the publishing side into The message content of journey P1 publication, however, it is determined that subscribe to, then send socket connection request, socket connection to publishing side process P1 Request carries the mark of publishing side process P1 and the mark of subscription end process S1, and publishing side process P1 is asked according to socket connection It asks foundation to establish socket with subscription end process S1 to connect.

S22, subscription end process read target message content.

After socket connection is established, subscription end process S1 can receive the ground that publishing side process is sent by socket Shared section key is opened, and the target message content is read in shared section key according to address in location.Further, it is possible to by target Message content calls registered call back function in subscription end process S1 as parameter, alternatively, can also will be in the target message Call back function is called as parameter in the address of appearance, so that subscription end process S1 can realize corresponding function according to call back function.

S23, subscription end process exit.

Shared section key can be exited after reading target message content, and detects whether to need to remove shared section key, Specifically, subscription end process S1 detection has currently been opened with the presence or absence of other processes (including publishing side process or subscription end process) And the shared section key is not exited, and if it exists, show currently have process that shared section key is used, then do not remove shared drive All message contents that area is stored；If it does not exist, show then remove in shared currently without process using shared section key All message contents that area is stored are deposited, to discharge the memory space of shared section key.

In above-mentioned one-to-one interprocess communication scene, publishing side process only needs message content being written to shared drive Area does not need kernel and buffer area that message content is copied to operating system, reduces message in the issuing process of message content The copy number of content, can reduce the resource overhead of operating system, and reduce the propagation delay time of message content, improve message content The handling capacity of transmission.Message content is sent to subscription end process in the address of shared section key in real time by socket, with Just subscription end process can get the message content of publishing side process write-in, it can be achieved that subscription end process and publishing side in real time Message content between process is synchronous.

In another embodiment, communication system shown in FIG. 1 can be applied to many-many communication scene；It is described multipair More communication scenes refer to the scene communicated between multiple publishing side processes and multiple subscription end processes.In multipair multi-process Between in communication scenes, below by taking publishing side process P1, publishing side process P2 and subscription end process S1, subscription end process S2 as an example, The working principle of the communication system equally includes: the issuing process of message content and the reading process of message content.

During news release, publishing side process P1 establishes the set with subscription end process S1, subscription end process S2 respectively Connect word connection；Publishing side process P1 can execute opening operation to shared section key, if successfully opening the shared section key, and work as Before need to issue target message content D, publishing side process P1 can be distributed in shared section key for the target message content D and be stored Space；If being allocated successfully, show that the shared section key has storage resource, target message content D is written in shared It deposits in area, and the target message content D is sent to subscription end process S1, subscription by socket in the address of shared section key End process S2.Equally, publishing side process P2 foundation is connect with the socket of subscription end process S1, subscription end process S2, publishing side Process P2 can execute opening operation to shared section key, if successfully opening the shared section key, and currently need to issue target Message content E, publishing side process P2 can distribute memory space in shared section key for the target message content E；If distribution is lost It loses, then deletes the existing message content of the shared section key, such as delete the accessed least message content of number or delete and build Earliest message content between immediately；The target message content E is being obtained after shared section key distributes memory space, by the target Message content E is written in shared section key, and the target message content E is sent out in the address of shared section key by socket It send to subscription end process S1, subscription end process S2.

In message reading process, subscription end process S1 can send to publishing side process P1, publishing side process P2 and be socketed Word connection request is connect with establishing subscription end process S1 with the socket of publishing side process P1, publishing side process P2, and receives hair The address that cloth end process P1 and publishing side process P2 are sent by socket；Subscription end process S1 can open shared section key, And message content D is read from shared section key in the address sent according to publishing side process P1, and is sent according to publishing side process P2 Address from shared section key read message content E.Equally, subscription end process S2 can to publishing side process P1, publishing side into Journey P2 sends socket connection request, to establish the socket of subscription end process S2 and publishing side process P1, publishing side process P2 Connection, and the address that publishing side process P1 and publishing side process P2 are sent by socket is received, subscription end process S2 is opened altogether Message content D is read from shared section key in the address enjoying memory field, and being sent according to publishing side process P1, and according to publishing side into Message content E is read from shared section key in the address that journey P2 is sent.If opening failure, show that there is no can be read shared section key Message content, then abandon read message content.

In above-mentioned multi-to-multi interprocess communication scene, it is shared that each publishing side process will need the message content issued to be written to Memory field, and message content is transmitted in the address of shared section key by each subscription end process by socket, each subscription end into Journey reads message content from shared section key according to address；This way it is not necessary to which message content is carried out frequency in kernel and buffer area Numerous copy reduces the copy number of message content, can reduce the resource overhead of operating system, and reduces the transmission of message content Time delay improves the handling capacity of message content transmission.Also, by socket in real time by message content on the ground of shared section key Location is sent to subscription end process, can so that subscription end process can get the message content of publishing side process write-in in real time Realize that the message content between subscription end process and publishing side process is synchronous.

The description of embodiment based on the communication system between above-mentioned process, the embodiment of the present invention are provided between a kind of process Communication means refers to Fig. 4, and the communication means between the process can be applied to the communication system between process shown in FIG. 1；This implementation In example, publishing side process is expressed as P1, and subscription end process is expressed as S1；Communication means between the process may include following steps S101-S105。

S101, subscription end process send socket connection request to publishing side process.

S102, publishing side process are established according to socket connection request and are connect with the socket of subscription end process.

In step S101~S102, in order to make publishing side process P1 and subscription end process S1 can be with interactive information, Ke Yijian Vertical cloth end process P1 establishes socket with subscription end process S1 and connect；Specifically, by way of broadcast message or can pass through The mode of center coordination realizes that publishing side process is established socket with subscription end process and connect.

In one embodiment, if being realized by way of broadcast message, publishing side process P1 is built with subscription end process S1 Vertical socket connection, then step S101~S102 includes step S31~S34:

S31, publishing side process P1 send broadcast message, which includes the mark and publishing side of publishing side process P1 Which type of message the service description information of process P1, service description information are capable of providing in for describing publishing side process P1 Hold.

S32, subscription end process S1 by the broadcast message of publishing side process P1 judge whether to need to subscribe to the publishing side into The message content of journey P1 publication.

S33, if it is determined that need to subscribe to the publishing side process P1 publication message content, then to publishing side process P1 send cover Word connection request is connect, which carries the mark of publishing side process P1 and the mark of subscription end process S1.

S34, publishing side process P1 are established according to the socket connection request and are established socket company with subscription end process S1 It connects.

In step S31~S34, after publishing side process and subscription end process all start, publishing side process P1 can be wide Message is broadcast, subscription end process S1 can determine that publishing side process P1 can be provided according to the service description information in broadcast message Which type of message content, the service description information may include type of message, such as image class, text class or video class；It can also wrap Include message subject, such as facial image, face video.Further, it is determined the need for subscribing to hair according to service description information The message content of cloth end process P1 publication, however, it is determined that need to subscribe to, then sent to publishing side process P1 and carry publishing side process P1 Mark and subscription end process S1 mark socket connection request, publishing side process P1 builds according to the socket connection request It is vertical to establish socket with subscription end process S1 and connect.

In another embodiment, if realizing that publishing side process and subscription end process are established by center coordination mode Socket connection, then step S101~S102 includes step S41~S42:

S41, publishing side process P1 can be by the mark of publishing side process P1 and the service description informations of publishing side process P1 It is sent to center process；The mark of subscription end process S1 and subscription demand can be sent to center process by subscription end process S1； Center process can be matched according to the content received, such as: center process finds the message that publishing side process P1 is provided Content is just met for the subscription demand of subscription end S1, then, the mark of subscription end process S1 can be sent to by center process Cloth end process P1, while the mark of publishing side process P1 is sent to subscription end process S1.

S42, publishing side process P1 or subscription end process S1 are between the two according to establishing from center process mark obtained Socket connection.

S103, publishing side process will need the target message content issued to be written to shared section key, and obtain the target Address of the message content in the shared section key.

Publishing side process P1 can will need the target message content issued to be written to shared section key；The writing process can It include: that 1. publishing side process P1 detection needs whether the data volume for the target message content issued is greater than present count magnitude；Herein Present count magnitude can be set according to actual needs；2. the target for demonstrating the need for publication disappears if more than present count magnitude The data volume for ceasing content is larger, then the target message content that can be issued to the needs carries out packing processing, after packing is handled Target message content be written to the shared section key；3. demonstrating the need for the target of publication if being less than or equal to present count magnitude The data volume of message content is smaller, then target message content directly can be written to the shared section key.In the target message After content is written to shared section key, publishing side process P1 obtains the target message content in the address of the shared section key.

The address is transmitted to the subscription end process by the socket by S104, publishing side process.

In order to realize subscription end process S1 and subscribe to the message synchronization between publishing side process P1, publishing side process P1 can be with Target message content is transmitted to subscription end process S1 by socket in the address of shared section key；So, subscription end into Journey S1 receives the information that publishing side process P1 is transmitted by socket, can timely learning publishing side process P1 issued it is new Message content.

S105, subscription end process read the message content according to the address from shared section key.

Subscription end process S1 receives the target message content of publishing side process P1 transmission in shared section key by socket In address；It, can be according to the ground when subscription end process S1 needs to read the target message content of publishing side process P1 publication The target message content is read from shared section key 10 in location.In a kind of embodiment, if shared section key storage be through It is packaged treated target message content, then the reading process of subscription end process S1 can include: 1. according to address out of shared It deposits to read in area and is packaged treated target message content；2. handling being packaged that treated target message content carrying out unpacking The target message content needed to subscription end process S1.In another embodiment, if shared section key storage be without It is packaged treated target message content, subscription end process S1 can directly read institute according to the address from the shared section key The target message content needed.

The description of embodiment based on the communication means between the communication system and process between above-mentioned process, the embodiment of the present invention Communication means between another process is provided, refers to Fig. 5, the communication means between the process can be applied to process shown in FIG. 1 Between communication system, in the present embodiment, publishing side process is expressed as P1, and subscription end process is expressed as S1；Communication between the process Method includes the following steps S201-S208:

S201, publishing side process are established socket with subscription end process and are connect, and specific implementation process can be found in real shown in Fig. 4 Apply step S101~S102 in example.

In order to make publishing side process P1 and subscription end process S1 that can establish cloth end process P1 with interactive information and subscribe to End process S1 establishes socket connection.Specifically, can be by way of broadcast message or by way of the coordination of center Realize that publishing side process is established socket with subscription end process and connect.

S202, publishing side process judge whether the shared section key has storage resource, if having, show shared drive Area has the ability of storage target message content, is transferred to execution step S203 if not having and shows that shared section key does not have Store the ability of target message content.

It includes step S51~S54 that publishing side process, which judges whether the shared section key has storage resource:

S51, opening operation is executed to the shared section key.

If S52, successfully opening the shared section key, detect whether the shared section key can be the target message content Distribute memory space.

If S53, shared section key can be the target message content assignment memory space, confirm that the shared section key has Standby storage resource.

If S54, opening the shared section key not successfully, the newly-built shared section key for having storage resource.

In step S51~S54, shared section key has storage resource and refers to: successfully opening shared section key, and this is total Enjoying memory field to be can be target message content assignment memory space；Shared section key does not have storage resource and refers to: having not been able to Shared section key is opened in success, or can successfully open shared section key, but the shared section key has not been able to as the target message Content assignment memory space.Wherein, if having built up shared section key, publishing side process P1 can successfully open shared drive Failure is opened if not setting up shared section key in area；Therefore, if opening successfully, it can detecte the shared section key and whether can For the target message content assignment memory space；If opening failure, the shared section key for having storage resource can be created.If The residual memory space capacity of the shared section key is greater than or equal to the data volume (i.e. length) of the target message content, then issues End process P1 determines that shared section key can be the target message content assignment memory space, otherwise, it determines cannot be the target Message content distributes memory space.

If S203, having storage resource, which is increased pre- fixed step size by publishing side process, and is obtained this and disappeared The state of queue lock is ceased, which includes idle state or occupied state.

If shared section key has storage resource, show that the residual memory space capacity of the shared section key is greater than or equal to The data volume of the target message content, shared section key have the ability of storage target message content, can write in shared section key Enter the target message content.In the embodiment of the present invention, shared section key uses message queue stores messages content, the shared drive It is locked including the first reference count and message queue；Being used to indicate for first reference count successfully opens and does not exit shared section key Publishing side process and subscription end process quantity；That is, showing not deposit if the value of the first reference count is initial value It is successfully opened in process and does not exit shared section key, it is shared using this to also indicate that there is no publishing side processes and subscription end process Memory field；If the value of the first reference count is not initial value, the first reference count, which is used to indicate, successfully to be opened and does not exit altogether The publishing side process of memory field and the quantity of subscription end process are enjoyed, also indicates that use there are publishing side process and subscription end process and be somebody's turn to do Shared section key.Herein, initial value can be set according to actual needs, and for example, 0,1 etc..It is write by the target message When entering to shared section key, which is increased pre- fixed step size by publishing side process P1, and pre- fixed step size can also basis Actual needs is set, and for example, 1,2 etc..With initial value for 0, for pre- fixed step size is 1；Shared section key is not any Process is opened, and the first reference count of shared section key is initial value；When publishing side process P1 opens shared section key, by first Reference count adds 1, then the value that the first reference calculates becomes 1.

For the ease of carrying out orderly management to message queue, the same time, which can be set, only allows a process to message team Column carry out edit operation, and edit operation herein includes: write operation, newly-increased nodal operation or deletion of node operation etc.；This setting It can be realized by message queue lock.Message queue locks the permission for being locked in the edit operation of shared section key, that is, It says, if some publishing side process obtains and occupies the message queue lock of the shared section key 10, message queue lock, which is in, at this time is accounted for With state, then the publishing side process can get the edit operation permission in the shared section key 10, it can be to shared section key Message content is written；Other publishing side processes cannot carry out edit operation to shared section key at this time；Only in the message team After column lock is released, the message queue being released is locked in idle state, other publishing side processes could be by obtaining and occupying The message queue is locked to obtain the edit operation permission in the shared section key 10.Shared section key can also include message queue Head node, for recording the state of the message content in message queue；Herein, the state of message content includes having message content State and do not have message content state；Wherein, have message content state and refer to and had been written into message in the message queue Hold；Do not have message content state and refer in the message queue and message content is not written.Further, if the state of the message content To have message content state, then message queue head node can be also used for the operation information of each message content of record write-in (number being such as read).Further, which may include at least one information node, and information node draws including second With counting, the data structure for storing message content and configuration information.Chained list (such as circular linked list or two-way can be used Circular linked list) or the data structures such as array establish the message queue of shared section key, according to chained list (such as circular linked list or double To circular linked list) mode establish the message queue of shared section key, then configuration information includes chained list configuration information；According to number The mode of group establishes message queue, then configuration information includes array configuration information.Wherein, the second reference count is used to indicate currently In the quantity for the subscription end process for reading the message content in the information node, array configuration information and chained list configuration information can be with Outlet and the entrance of message queue are recorded, the message content that information node includes refers to the message content of publishing side process write-in.

For establishing the message queue of shared section key by the way of chained list；In the sometime shared section key State is as shown in fig. 6, the shared section key 10 includes information node 1, information node 2 and information node 3；Wherein, information node 1 In the second reference count value be 0, show there is currently no subscription end process read information node 1 in message content A, disappear The value for ceasing the second reference count in node 2 is 1, shows that there is currently a subscription end processes to read disappearing in information node 2 Content B is ceased, the value of the second reference count in information node 3 is 2, shows that there is currently 2 subscription end processes to read message section Message content C in point 3.The value of first reference count of shared section key 10 be 5, show current one co-exist in 5 processes at Function is opened and does not exit shared section key 10.By the second reference count of above-mentioned each information node it is found that current one co-exists in Three subscription end processes are reading message content, after only having subscription end process to open shared section key, can just read altogether The message content in memory field is enjoyed, therefore, is opened there is currently 3 subscription end processes and does not exit shared section key, Jin Erke Know, opened there is currently 2 publishing side processes and does not exit shared section key.

In step S202, if shared section key does not have storage resource, further shared section key cannot disappear for the target Content assignment memory space is ceased, shows that the residual memory space capacity of shared section key is less than the data volume of target message content, In a kind of feasible embodiment, space release operation can also be carried out, to the shared section key so as to which the target disappears Breath content is written to the shared section key.The process for carrying out space release operation to the shared section key may comprise steps of S61~S62:

S61, the earliest information node of settling time in the message queue is obtained.

If the value of the second reference count of S62, the settling time earliest information node is initial value, when deleting this and establishing Between earliest information node.

In step S61~S62, when the shared section key cannot be the target message content assignment memory space, hair Cloth end process P1 can discharge settling time earliest information node；Specifically, it is earliest to obtain settling time in the message queue Information node show not deposit currently if the value of the second reference count of the settling time earliest information node is initial value The settling time earliest information node is being read in subscription end process, the settling time earliest information node can be deleted, After deleting the settling time earliest information node, if cannot deposit in shared section key or for the target message content assignment Space is stored up, then earliest information node of available next settling time, circulation executes step S61~S62 to delete message Node, until in shared section key can be the target message content assignment memory space when terminate.If the settling time is earliest The value of second reference count of information node is not initial value, shows that there is currently subscription end processes to read the settling time most Early information node, then publishing side process P1 can abandon that message is written to shared section key, or wait can this when establishing Between the value of the second reference count of earliest information node when being initial value, delete the settling time earliest information node.

Wherein, the value of the second reference count is that initial value is used to indicate that there is currently no subscription processes to read the information node In message content, initial value can be zero, is also possible to other values.

For example, when the shared section key cannot be the target message content assignment memory space, as shown in fig. 6, The settling time got earliest information node is information node 1 (since message queue is First Input First Output, message Tail node 1 in queue is the node in earliest inbound message queue, i.e., information node 1 is settling time earliest message section Point).Second reference count of information node 1 is 0, i.e., the second application count of information node is initial value, can be by message section Point 1 is deleted, if after information node 1 is deleted, publishing side process P1 still can not be the target message content assignment memory space, The available next information node (i.e. information node 2) established earliest of publishing side process P1, due to the second of information node 2 Reference count is not initial value, then abandons that message content is written to shared section key.

If S204, the message queue lock are in idle condition, publishing side process obtains message queue lock to be somebody's turn to do The write operation permission of shared section key.

If message queue lock is in idle condition, shows to write currently without publishing side process P1 into shared section key and disappear Content is ceased, message content can be written in publishing side process P1 into shared section key, in order to avoid publishing side process P1 is being written During message content, message content is also written in other publishing side processes into shared section key, and shared section key is caused to be deposited There is out-of-order problem in the message content of storage, and the available message queue lock of publishing side process P1 is to obtain the shared drive Write operation permission makes message queue lock in occupied state.

The target message content is written in the message queue of the shared section key by S205, publishing side process.

When obtaining the write operation permission of the shared section key, publishing side process P1 the target message content can be written Into the message queue of the shared section key, specifically, the target message content can be written to the entrance of the message queue Place, or the message content is written to the region that message content is not written in the message queue and.

The target message content is written to the tool of the process in the message queue of the shared section key and can wrapped by publishing side process Include step S71~S73:

S71, the entrance that the message queue is searched according to the data structure information.

S72, target message node is established in the inlet.

S73, the target message content is written in the target message node, and is arranged the second of the target message node The value of reference count, the second reference count of the target message node, which is used to indicate, is currently reading in the target message node Message content subscription end process quantity.

In step S71~S73, in order to agree with the rule for the first in, first out for transmitting message content in message queue, publication The message content being newly written can be written to inlet by end process P1, specifically, publishing side process P1 can be according to the data Structural information searches the entrance of the message queue, establishes target message node in the inlet, which is written Into the target message node, and the value of the second reference count of the target message node is set, that is, the target message section is set The initial value of second reference count of point, so that subsequent can be determined according to the value of the second reference count is currently just reading the target The quantity of the subscription end process of the message content of information node.

S206, after the completion of write-in, publishing side process discharges message queue lock, and obtains the target message content at this Address in shared section key.

In order to which other publishing side processes can obtain the write operation permission of shared section key or publishing side process P1 can be again The secondary write operation permission for obtaining shared section key, publishing side process P1 can discharge the message after target message content is written Queue lock is in idle condition message queue lock.In publishing side process P1 after target message content is written, in order in real time will The target message content synchronization of write-in is to subscription end process S1, and the available target message content is in the shared section key Address.

The address is transmitted to the subscription end process by the socket by S207, publishing side process.

It includes: that handle is written in the address that the address is transmitted to the subscription end process by the socket by publishing side process Handle in the handle pond is transmitted to the subscription end process by the socket by pond.

Publishing side process P1 can the address conversion be handle, which is written in handle pond, pass through socket will Handle in the handle pond is transmitted to subscription end process S1, specifically, the first address that the address is the target message content (or refers to Needle), address offset amount is calculated according to the first address of the first address of the message content and shared section key, which is made It for handle, is written in handle pond, the handle in the handle pond is transmitted to by subscription end process S1 by socket.

Following steps can also be performed in publishing side process: when exiting shared section key, by the first of the shared section key Reference count reduces pre- fixed step size, if the value of the first reference count of shared section key is initial value, removes shared section key institute All message contents of storage delete information node in the message queue.

Publishing side process P1 can exit shared section key after target message content is written to shared section key, and First reference count of the shared section key is reduced into pre- fixed step size, if the value of the first reference count of shared section key is initial Value shows to open there is currently no subscription end process and publishing side process and does not exit the shared section key, publishing side process P1 All message contents that the shared section key is stored can be removed or delete the information node in message queue, so as to it is subsequent can Message content is written to the shared section key；If the value of the first reference count of shared section key is not initial value, show It is opened there is currently subscription end process Huo and publishing side process and does not exit the shared section key, then do not remove shared section key Message in, so that subscription end process can read the message content of shared section key.

S208, subscription end process read the message content according to the address from the shared section key.

It includes: by the socket that subscription end process S1, which receives the publishing side process by the address that the socket is sent, Connection receives the handle in the handle pond of the subscription end process transmission, according to the handle acquiring address.Subscription end process S1 can The address of target message content is calculated with the handle sent by publishing side process P1, specifically, according to the handle (address Offset) plus the first address of shared section key the first address of the target message content is obtained, the first ground of the target message content Location is the address of the target message content, so as to be read in the target message according to the first address of the target message content Hold.

It has been observed that shared drive uses message queue stores messages content, which includes the first reference count；It should Message queue includes at least one information node, which includes the second reference count and message content；According to the address The process that the target message content is read from the shared drive includes step S81~S84:

S81, the shared section key is opened, and pre- fixed step size is increased to the first reference count of the shared section key.

After subscription end process S1 receives address, it is somebody's turn to do if subscription end process S1 determines that current needs or subsequent needs are read Target message content can then show the demand of subscription end process S1, tool by the way that the first reference count of shared section key is arranged Body, the shared section key can be opened, and pre- fixed step size is increased to the first reference count of the shared section key.

S82, target message node in the message queue is obtained according to the address.

S83, the second reference count of the target message node is increased into pre- fixed step size, is read from the target message node The target message content.

When needing to read the target message content, the target message content is being read in subscription end process S1 in order to prevent During, which is deleted the target message by other publishing side processes or subscription end process, subscription end Second reference count of the target message node can be increased pre- fixed step size by process S1, and be read from the target message node The target message content.

S84, after the completion of reading, the second reference count of the target message node is calculated and reduces pre- fixed step size.

Subscription end process S1 after having read the target message content, show this read operation complete, subscription end into Second reference count of the target message node can be reduced pre- fixed step size by journey S1, so that subsequent issued end process can basis The space of the value release shared section key of second reference count.

Following steps can also be performed in subscription end process: when exiting the shared section key, by the shared section key First reference count reduces pre- fixed step size, if the value of the first reference count of the shared section key is initial value, it is shared to remove this The information node in all message contents or deletion message queue that memory field is stored.

Subscription end process S1 is subscribed to after getting the target message content and when not needing to read other message contents again End process S1 can exit the shared section key, and the first reference count of the shared section key is reduced pre- fixed step size, if The value of first reference count of the shared section key is initial value, shows that there is currently no subscription end processes and publishing side process to beat Open and do not exit the shared section key, subscription end process S1 can remove all message contents that the shared section key is stored or The information node in message queue is deleted, message content can be written to the shared section key so as to subsequent；If shared drive The value of first reference count in area is not initial value, show there is currently subscription end process or and publishing side process open and not The shared section key is exited, then does not remove the message content of shared section key, so that subscription end process can read shared drive The message content in area.

Communication means between process provided in an embodiment of the present invention is applicable to one-to-one, one-to-many or multi-to-multi process Between communications applications scene.Fig. 7 is referred to, is illustrated by taking robot scene as an example, which includes intelligent robot terminal, should Intelligent terminal includes one or more camera shooting application programs, such as includes high-definition camera application program and commonly images application program, When start in an intelligent terminal and run high-definition camera application program and or when common camera shooting application program, in the intelligent terminal Middle synchronous averaging and run high-definition camera process and or commonly image process.The intelligent terminal further includes various image application journeys Sequence, including but not limited to: face recognition application program, gesture identification application program, human bioequivalence application program, gesture recognition are answered With program, object identification application program etc.；When starting in an intelligent terminal and running these image recognition application programs, at this Synchronous averaging is understood in intelligent terminal and runs corresponding process.With intelligent terminal starting face recognition application program to be paid Scene, and starting human bioequivalence application program for carrying out the scene of personnel tracking；When face recognition application program and After human bioequivalence application program is activated and runs, corresponding operation face recognition process and human bioequivalence process.The recognition of face As subscription end process, high-definition camera process and common camera shooting process, should as publishing side process for process and human bioequivalence process Inter-process communication methods include the following steps S301-S304:

The socket that S301, publishing side process are established between each subscription end process connects, and for details, reference can be made to steps S101 and step S102.

In order to make publishing side process and subscription end process can with interactive information, can establish according to demand publishing side process with Between each subscription end process socket connection, for example, face payment scene in, in order to improve identification accuracy and The safety of payment is improved, face recognition process can subscribe to the high-definition image data of high-definition camera process publication to carry out face knowledge Not；Face recognition process can be established in step S301 to connect with the socket of high-definition camera process.For another example: human body tracking scene In, due to only needing to identify the basic sign of human body, such as height, figure information when carrying out human bioequivalence in this scene, because This, the general image data that human bioequivalence process can subscribe to common camera shooting process publication carries out human bioequivalence, can in step S301 Human bioequivalence process is established to connect with the socket of common camera shooting process.High-definition image data herein refer to that pixel is higher than or waits In the image data of presetted pixel threshold value；General image data refers to that pixel is lower than the image data of presetted pixel threshold value；This is pre- If pixel threshold can be set according to actual needs.

The image data that S302, publishing side process will acquire is written to shared section key, and obtains the image data and exist The address of the shared section key.

When high-definition camera process receives the instruction of shooting image, high-definition camera process can be shot the camera of terminal High-definition image data be written to shared section key, and obtain the high-definition image data in the address of shared section key.Equally, general The general image data that terminal is shot can be written to shared section key by logical camera shooting process, and obtain the general image data altogether Enjoy the address of memory field.

The address is transmitted to each subscription end process by the socket by S303, publishing side process, and for details, reference can be made to steps Rapid S104 and step S207.

For example, the address of high-definition image data can be transmitted to face by the socket and known by high-definition camera process The address of general image data can be transmitted to human bioequivalence process by the socket by other process, common camera shooting process.

S304, each subscription end process read the message content according to the address from the shared section key.

After face recognition process receives the address of high-definition camera process transmission, high definition can be read from shared section key and taken the photograph As the high-definition image data that process is issued, for example, intelligent terminal, when being paid by recognition of face, face recognition process can To read the high-definition image data from shared section key according to the address received and carry out recognition of face, according to recognition of face As a result subsequent delivery operation is executed.

After human bioequivalence process receives the address that common camera shooting process is sent, it can read from shared section key and commonly take the photograph As the general image data that process is issued, for example, intelligence is eventually during public security department needs to investigate the case by human bioequivalence Human bioequivalence process in end can read the general image data according to the address received and be carried out from shared section key Human bioequivalence obtains recognition result, and recognition result is exported to carry out subsequent investigation tracking operation.

Based on the description of the communication means between above-mentioned process, the embodiment of the present invention provides the communication device between a kind of process, Fig. 8 is referred to, the communication device between process is applied to the communication system between process, which includes publishing side process, subscription end Process and shared section key, the communication device between process include:

Connection unit 801 is connected for receiving the socket connection request of subscription end process transmission according to the socket Request is established socket with the subscription end process and is connect；The socket connection request carries mark and the institute of publishing side process State the mark of subscription end process；The mark of the publishing side process is to be sent by the subscription end process from the publishing side process Broadcast message in obtain, or it is from center process obtained.

Writing unit 802, the target message content for that will need to issue is written to shared section key, and obtains the mesh Mark address of the message content in the shared section key.

Transmission unit 803, for the address to be transmitted to the subscription end process by the socket, so that described At least one subscription end process reads the target message content according to the address from the shared section key.

Optionally, connection unit 801, the socket connection request sent specifically for receiving the subscription end process, institute It states socket connection request and carries the mark of the publishing side process and the mark of the subscription end process；The publishing side process Mark be to be obtained from the broadcast message that the publishing side process is sent by the subscription end process, or from center process It is obtained；Socket is established with the subscription end process according to the socket connection request to connect.

Optionally, judging unit 804, for judging whether the shared section key has storage resource.

Optionally, writing unit 802, if having storage resource for the shared section key, by the target message Content is written to the shared section key.

Optionally, judging unit 804 are specifically used for executing opening operation to the shared section key；If successfully opening institute Shared section key is stated, detects whether the shared section key can be the target message content assignment memory space；If described Shared section key can be the target message content assignment memory space, then confirms that the shared section key has storage money Source；If opening the shared section key not successfully, the newly-built shared section key for having storage resource.

Optionally, writing unit 802 are specifically used for increasing by first reference count into pre- fixed step size, and described in acquisition The state of message queue lock, the state includes idle state or occupied state；If the message queue lock is in idle condition, Obtain the message queue lock then to obtain the write operation permission of the shared section key；The target message content is written to In the message queue of the shared section key；After the completion of write-in, the message queue lock is discharged.

Optionally, writing unit 802, specifically for searching the entrance of the message queue according to the configuration information；In Target message node is established in the inlet；The target message content is written in the target message node, and is arranged Second reference count of the initial value of the second reference count of the target message node, the target message node is used to indicate Currently reading the quantity of the subscription end process of the message content in the target message node.

Optionally, releasing unit 805, if cannot be stored for the shared section key for the target message content assignment Space carries out space release operation to the shared section key.

Optionally, releasing unit 805, specifically for the information node that settling time in the acquisition message queue is earliest； If the value of the second reference count of the settling time earliest information node is initial value, institute is deleted from the message queue State settling time earliest information node.

Optionally, computing unit 806, for when exiting the shared section key, by the first of the shared section key Reference count reduces pre- fixed step size.

Optionally, clearing cell 807, if the value of the first reference count for the shared section key is initial value, clearly The information node in all message contents or the deletion message queue stored except the shared section key.

Optionally, transmission unit 803 are specifically used for address handle pond is written；It will be described by the socket Handle in handle pond is transmitted to the subscription end process.

Based on the description of the communication means between above-mentioned process, the embodiment of the present invention provides the communication device between a kind of process, Fig. 9 is referred to, the communication device between process is applied to the communication system between process, which includes publishing side process, subscription end Process and shared section key, the communication device between process include:

Connection unit 901 is established and the publishing side process for sending socket connection request to publishing side process Socket connection；The socket connection request carries the mark of the publishing side process and the mark of subscription end process；It is described The mark of publishing side process be obtained from the broadcast message that the publishing side process is sent by the subscription end process, or From center, process is obtained.

Receiving unit 902, the address sent for receiving the publishing side process by the socket, the address is The target message that the publishing side process will need the target message content issued acquired after being written to shared section key Address of the content in the shared section key.

Reading unit 903, for reading the target message content from the shared drive according to the address.

Optionally, receiving unit 902, specifically for receiving the sentence of the subscription end process transmission by the socket Handle, the handle are by the publishing side process that address write-in handle pond is obtained；According to the handle acquiring institute State address.

Optionally, the shared drive uses message queue stores messages content；The shared drive includes the first reference It counts；The message queue includes target message node, and the target message node includes at least the second reference count, for depositing The data structure and configuration information of the target message content are stored up, the configuration information includes that chained list configuration information or array are matched Confidence breath.

Optionally, reading unit 903 are specifically used for executing opening operation to the shared section key；If successfully opening institute Shared section key is stated, pre- fixed step size is increased to the first reference count of the shared section key；According to the acquisition of the address Target message node in message queue；Second reference count of the target message node is increased into pre- fixed step size；From described The target message content is read in target message node, after the completion of reading, by the second reference of the target message node It counts and reduces pre- fixed step size.

Optionally, computing unit 904, for when exiting the shared section key, by the first of the shared section key Reference count reduces pre- fixed step size.

Optionally, clearing cell 905, if the value of the first reference count for the shared section key is initial value, clearly The information node in all message contents or the deletion message queue stored except the shared section key.

In the embodiment of the present invention, subscription end process is established socket with publishing side process and is connect, and it is logical to receive publishing process The address for crossing socket transmission, reads target message content according to address, it is only necessary to which message content exists from shared section key It is copied in shared section key, without continually being copied in kernel and buffer area, reduces copying for message content Shellfish number, can reduce the resource overhead of operating system, and reduce the propagation delay time of message content, improve gulping down for message content transmission The amount of spitting.And message content is sent in the address of shared section key in real time by subscription end process by socket, to subscribe to End process can get the message content of publishing side process write-in in real time, it can be achieved that subscription end process and publishing side process it Between message content it is synchronous.

Based on the description of the communication means between above-mentioned process, the embodiment of the present invention provides a kind of terminal, and referring to Figure 10, it should Terminal can be smart phone, computer, server, smartwatch or Intelligent bracelet etc., and terminal includes the communication system between process, The system includes publishing side process, subscription end process and shared section key, and referring to Figure 10, terminal includes: processor 101, defeated Incoming interface 102, output interface 103 and computer storage medium 104.

The computer storage medium 104 can indicate storage device, including volatile computer storage medium (volatile memory), such as random access computer storage medium (random-access memory, RAM)；Computer Storage medium also may include nonvolatile computer storage media (non-volatile memory), such as quick flashing computer Storage medium (flash memory), hard disk (hard disk drive, HDD) or solid state hard disk (solid-state drive, SSD)；Computer storage medium 104 can also include the combination of the computer storage medium of mentioned kind.

The input interface 102 can be used for input and wait for the pending data handled to processor 101.In a reality It applies in example, input interface 102 may include multiple independent interfaces, such as Ethernet interface, LCD (Liquid Crystal Display, liquid crystal display) interface etc., it is each responsible for communication of the different peripheral equipments to 101 input data of processor.

The output interface 103 can be used for outputting data to other peripheral equipments being connected with terminal, can export outward The processing result of processor 101.Output interface 103 can also include multiple independent interfaces, such as Ethernet interface, camera Interface etc. is responsible for communication of the processor 101 to different peripheral equipment output datas.

In one embodiment, output interface 103 and input interface 102 can be universal input output (General Purpose Input Output, GPIO) interface.

The processor 101 can be used for reading and executing computer instruction.In one embodiment, processor 701 may be used also To further comprise hardware chip.Above-mentioned hardware chip can be specific integrated circuit (application-specific Integrated circuit, ASIC), programmable logic device (programmable logic device, PLD) or its group It closes.Above-mentioned PLD can be Complex Programmable Logic Devices (complex programmable logic device, CPLD), existing Field programmable logic gate array (field-programmable gate array, FPGA), Universal Array Logic (generic Array logic, GAL) or any combination thereof.

The computer storage medium 104 is also used to store one or more than one program instructions；The program instruction packet Include the first instruction and/or the second instruction.In one embodiment, when the processor 101 can call the described first instruction The communication means between process is able to carry out to provide the communication service between process, specifically, the processor 101 calls first to refer to It enables and executes following steps:

Socket is established with the subscription end process according to the socket connection request to connect；The target that needs are issued Message content is written to shared section key, and obtains address of the target message content in the shared section key；

Optionally, the processor 101 can call first instruction, execute following steps:

The socket connection request that the subscription end process is sent is received, the socket connection request carries the publication The mark of the mark of end process and the subscription end process；The mark of the publishing side process is by the subscription end process from institute It states and is obtained in the broadcast message of publishing side process transmission, or is from center process obtained；

Socket is established with the subscription end process according to the socket connection request to connect.

Judge whether the shared section key has storage resource；

If the shared section key has storage resource, the target message content is written to the shared drive Area.

Opening operation is executed to the shared section key；

If successfully opening the shared section key, detect whether the shared section key can be the target message content Distribute memory space；

If the shared section key can be the target message content assignment memory space, the shared drive is confirmed Area has storage resource；

If opening the shared section key not successfully, the newly-built shared section key for having storage resource.

Optionally, the shared section key uses message queue stores messages content；The shared drive draws including first With counting and message queue lock；The processor 101 can call first instruction, execute following steps:

First reference count is increased into pre- fixed step size, and obtains the state of the message queue lock, the state packet Include idle state or occupied state；

If the message queue lock is in idle condition, the message queue lock is obtained to obtain the shared section key Write operation permission；

The target message content is written in the message queue of the shared section key；

After the completion of write-in, the message queue lock is discharged.

Optionally, the message queue includes at least one information node, and the information node includes at least the second reference It counts, the data structure for storing message content and configuration information, the configuration information include chained list configuration information or number Group configuration information；The processor 101 can call first instruction, execute following steps:

The entrance of the message queue is searched according to the configuration information；

Target message node is established in the inlet；

The target message content is written in the target message node, and is arranged the of the target message node The initial value of two reference counts, the second reference count of the target message node, which is used to indicate, is currently reading the target The quantity of the subscription end process of message content in information node.

If the shared section key cannot be the target message content assignment memory space, to the shared section key into The release operation of row space.

Obtain the earliest information node of settling time in the message queue；

If the value of the second reference count of the settling time earliest information node is initial value, from the message queue It is middle to delete settling time earliest information node.

When exiting the shared section key, the first reference count of the shared section key is reduced into pre- fixed step size；

If the value of the first reference count of the shared section key is initial value, remove what the shared section key was stored Information node in all message contents or the deletion message queue.

Handle pond is written into the address；

The handle in the handle pond is transmitted to the subscription end process by the socket.

In another embodiment, it is able to carry out between process when the processor 101 can call the described second instruction Communication means to provide the communication service between process, specifically, the processor 101 calls the second instruction execution to walk as follows It is rapid:

Optionally, the processor 101 can call second instruction, execute following steps:

The handle of the subscription end process transmission is received by the socket, the handle is by the publishing side process Address write-in handle pond is obtained；

According to address described in the handle acquiring.

Opening operation is executed to the shared section key；

If successfully opening the shared section key, pre- fixed step size is increased to the first reference count of the shared section key；

The target message node in the message queue is obtained according to the address；

Second reference count of the target message node is increased into pre- fixed step size；

The target message content is read from the target message node, after the completion of reading, by the target message Second reference count of node reduces pre- fixed step size.

It should also be noted that, the corresponding function of terminal of the invention can both be realized by hardware design, can also lead to Software design is crossed to realize, can also be realized by way of software and hardware combining, this is not restricted.

The embodiment of the present invention also provides a kind of computer program product, and the computer program product includes storing calculating The computer storage medium of machine program, when run on a computer, the computer are executed as in above method embodiment Any one of record is to some or all of inter-process communication methods step.In one embodiment, which produces Product can be a software installation packet.

Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with Relevant hardware is instructed to complete by computer program, above-mentioned program can be stored in a computer and take in storage medium, The program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, above-mentioned storage medium can for magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..

Above disclosed is only section Example of the present invention, cannot limit the right model of the present invention with this certainly It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.

Claims

1. the communication means between a kind of process characterized by comprising

The socket connection request that subscription end process is sent is received, the socket connection request carries the mark of publishing side process And the mark of the subscription end process；The mark of the publishing side process is by the subscription end process from the publishing side process It is obtained in the broadcast message of transmission, or obtained from center process；

The target message content issued will be needed to be written to shared section key, and obtain the target message content described shared Address in memory field；

The address is transmitted to the subscription end process by the socket, so that the subscription end process is according to describedly The target message content is read from the shared section key in location.

2. the method as described in claim 1, which is characterized in that described that the target message content issued will be needed to be written to shared Before memory field, further includes:

Opening operation is executed to the shared section key；

If opening the shared section key not successfully, the newly-built shared section key for having storage resource；

If successfully opening the shared section key, detect whether the shared section key can be the target message content assignment Memory space；

If the shared section key cannot be the target message content assignment memory space, the shared section key is carried out empty Between discharge operation；If the shared section key can be the target message content assignment memory space, confirm described shared Memory field has storage resource；

If the shared section key has storage resource, the target message content issued will be needed to be written to shared section key.

3. method according to claim 2, which is characterized in that the shared section key is using in message queue stores messages Hold；The shared drive includes that the first reference count and message queue are locked；The message queue includes at least one information node, The information node includes at least the second reference count, the data structure for storing message content and configuration information, described Configuration information includes chained list configuration information or array configuration information；

It is described that the target message content issued will be needed to be written to shared section key, comprising:

First reference count is increased into pre- fixed step size, and obtains the state of the message queue lock, the state includes sky Not busy state or occupied state；

If the message queue lock is in idle condition, the message queue lock is obtained to obtain writing for the shared section key Operating right；

Target message node is established in the inlet；

The target message content is written in the target message node, and is arranged the second of the target message node and draws With the initial value of counting, the second reference count of the target message node, which is used to indicate, is currently reading the target message The quantity of the subscription end process of message content in node；

After the completion of write-in, the message queue lock is discharged.

4. method as claimed in claim 3, which is characterized in that it is described that space release operation is carried out to the shared section key, Include:

Obtain the earliest information node of settling time in the message queue；

If the value of the second reference count of the settling time earliest information node is initial value, deleted from the message queue Except the information node that the settling time is earliest.

5. the method as claimed in claim 3 or 4, which is characterized in that further include:

If the value of the first reference count of the shared section key is initial value, that removes that the shared section key stored is all Information node in message content or the deletion message queue.

6. method according to claim 1 or 2, which is characterized in that described to be transmitted to the address by the socket The subscription end process, comprising:

Handle pond is written into the address；

7. the communication means between a kind of process characterized by comprising

Socket connection request is sent to publishing side process to connect to establish with the socket of the publishing side process；The socket Word connection request carries the mark of the publishing side process and the mark of subscription end process；The mark of the publishing side process be from It is obtained in the broadcast message that the publishing side process is sent, or obtained from center process；

Receive the address that the publishing side process is sent by the socket, the address is the publishing side process by needs The target message content of the publication target message content acquired after being written to shared section key is in the shared section key In address；

8. the method for claim 7, which is characterized in that the reception publishing side process is sent out by the socket The address sent, comprising:

Receive the handle of the subscription end process transmission by the socket, the handle is by the publishing side process by institute It is obtained to state address write-in handle pond；

According to address described in the handle acquiring.

9. method as claimed in claim 7 or 8, which is characterized in that the shared drive is using in message queue stores messages Hold；The shared drive includes the first reference count；The message queue includes target message node, the target message node Including at least the second reference count, data structure and configuration information for storing the target message content, the configuration Information includes chained list configuration information or array configuration information；

It is described to read the target message content from the shared drive according to the address, comprising:

Opening operation is executed to the shared section key；

The target message content is read from the target message node, after the completion of reading, by the target message node The second reference count reduce pre- fixed step size.

10. method as claimed in claim 9, which is characterized in that further include:

11. the communication device between a kind of process characterized by comprising

Connection unit, for receive subscription end process transmission socket connection request, according to the socket connection request with The subscription end process establishes socket connection；The socket connection request carries the mark and the subscription of publishing side process The mark of end process；The mark of the publishing side process is the broadcast sent by the subscription end process from the publishing side process It is obtained in message, or obtained from center process；

Writing unit, the target message content for that will need to issue is written to shared section key, and obtains the target message Address of the content in the shared section key；

Transmission unit, for the address to be transmitted to the subscription end process by the socket, so that the subscription end Process reads the target message content according to the address from the shared section key.

12. the communication device between a kind of process characterized by comprising

Connection unit establishes the socket with the publishing side process for sending socket connection request to publishing side process Connection；The socket connection request carries the mark of the publishing side process and the mark of subscription end process；The publishing side The mark of process is obtained from the broadcast message that the publishing side process is sent, or obtained from center process；

Receiving unit, the address sent for receiving the publishing side process by the socket, the address is the hair Cloth end process exists the target message content for needing the target message content issued acquired after being written to shared section key Address in the shared section key；

13. the communication system between a kind of process, which is characterized in that including publishing side process, subscription end process and shared section key:

The publishing side process, the socket connection request sent for receiving the subscription end process, the socket connection Request carries the mark of publishing side process and the mark of the subscription end process；The mark of the publishing side process is ordered by described Read what end process was obtained from the broadcast message that the publishing side process is sent, or obtained from center process；According to institute It states socket connection request and establishes socket with the subscription end process and connect；To need the target message content issued be written to Shared section key, and obtain address of the target message content in the shared section key；The address is passed through described Socket is transmitted to the subscription end process；

The subscription end process, for the publishing side process send socket connection request, establish with the publishing side into The socket of journey connects；The address that the publishing side process is sent by the socket is received, according to the address from described The target message content is read in shared drive；

14. a kind of computer storage medium, which is characterized in that the computer storage medium be stored with one article or one or more One instruction, described one or one or more first instruction be suitable for loaded by processor and executed such as any one of claim 1-6 institute Communication means between the process stated；Alternatively, the computer storage medium is stored with one or one or more second instruction, it is described One or one or more second instruction be suitable for as processor loads and executes the communication between the process as described in claim 7-10 Method.

15. a kind of terminal characterized by comprising

Processor is adapted for carrying out one or one or more instruction；And

Computer storage medium, the computer storage medium be stored with one or one or more first instruction, described one or One or more first instruction is suitable for being loaded by processor and executing the communication party between process as claimed in any one of claims 1 to 6 Method；Alternatively, the computer storage medium be stored with one or one or more second instruction, described one or one or more second Instruction is suitable for as processor loads and executes the communication means between the process as described in claim 7-10.