CN104917732A - Method of binding encoders and decoders with multiple clients and system - Google Patents
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Abstract
The invention discloses a method of binding encoders and decoders with multiple clients and a system. The system comprises a server end and multiple clients. The method comprises steps: A, multiple groups of encoders and decoders corresponding to multiple kinds of data types are arranged in the server end; B, multiple transmission control protocol sessions between the server end and the multiple clients are built respectively, and multiple task objects corresponding to the multiple transmission control protocol sessions are built; C, a first data packet sent by each client is received in the server end through the task object; D; according to the first data packet sent by each client, the data type of each task object is determined respectively; and E, according to the data type of each task object, an encoder and a decoder corresponding to each task object are bound respectively. The method of binding encoders and decoders with multiple clients and the system have the beneficial effects that system resources of the server end are reasonably used, and the speed of processing data packets with different data types is quickened.
Description
Technical field
The present invention relates to communication technical field, more particularly, relate to the method and system of a kind of multi-client binding encoder and decoder.
Background technology
Computer network needs multiple kinds to transmit and receives data.Usually, a computer network comprises such as computer, and printer and other computer peripheral equipments are interconnected and can a device systems of communication.Data transmit each via packet among these devices, and described packet then makes by using the network of a communication protocol standard to carry out communication.The multiple different consensus standard of current use, the example of popular protocol is Internet protocol (IP), network packet exchanges (IPX), order packet switch (SPX), transmission control protocol (TCP) and point-to-point protocol (PPP).Each network equipment comprises the combination of the hardware and software of translation protocol and deal with data.
Transmission control protocol (Transmission Control Protocol, TCP) be a kind of connection-oriented, reliable, based on the transport layer communication protocol of byte stream, defined by the RFC793 of IETF.In internet protocol suite (Internet protocol suite), TCP layer is positioned on IP layer, the intermediate layer under application layer.Often need the connection reliable, image tube road is the same between the application layer of different main frame, but IP layer does not provide such stream mechanism, and be to provide insecure packet switch.In the computer network osi model simplified, it completes the 4th layer of function specified by transport layer.And the server end connected by TCP at present and multiple client, only have a communications protocol under usual condition.But for how to process for data type, current great majority adopt different encoder to encode to it according to real-time data type and decode, so not only can cause the wasting of resources of server end, also can cause the consequence that data processing data is slow.
Summary of the invention
The technical problem to be solved in the present invention is, for the wasting of resources in prior art, the defect that processing speed is slow, provides a kind of multi-client to bind the method and system of encoder and decoder.
An aspect of of the present present invention, provide a kind of multi-client to bind the method for encoder and decoder, comprise server end and multiple client, the method comprises the following steps:
A, the many group coding device corresponding with numerous types of data and decoder are set in described server end;
B, set up multiple transmission control protocol sessions of described server end and multiple described client respectively, and create the multiple task objects corresponding with multiple described transmission control protocol session;
C, in described server end, receive by described task object first packet that each described client sends;
D, first packet sent according to each described client, determine the described data type of each described task object respectively;
E, described data type according to each described task object, bind the encoder corresponding with each described task object and decoder respectively, thus encode to follow-up packet in each described task object and decode in described server end.
In method of the present invention, in described steps A, described data type is: Hypertext Transmission Protocol, hypertext links markup language, post office protocol, internet information access protocal, Simple Mail Transfer protocol, joint photographic experts group, GIF(Graphic Interchange format) or Java language.
In method of the present invention, in described step B, the session request of multiple described client is monitored in real time in described server end, and set up multiple transmission control protocol sessions of described server end and default multiple clients respectively according to described session request, and create the multiple task objects corresponding with multiple described transmission control protocol session in real time.
In method of the present invention, in described step C, the data type of all packets of the follow-up transmission of this client drawn together by described first data handbag that each client sends.
In method of the present invention, in described step D, according to first packet that each described client sends, data type described at least one determining each described task object respectively.
In method of the present invention, described step e comprises following sub-step:
E1, judge whether there is identical described data type in multiple described task object, if there is identical described data type in multiple described task object, go to step E2, if there is not identical described data type in multiple described task object, go to step E3;
E2, according to the identical described data type existed in multiple described task object, for there is the described task object binding same group decoder corresponding with described task object and the encoder of identical described data type in described server end, for the described task object binding encoder corresponding with described task object and the decoder of described data type not identical in multiple described task object, go to step E4;
E3, described data type according to each described task object, bind the encoder corresponding with each described task object and decoder respectively, go to step E4 in described server end;
E4, follow-up packet in each described task object is encoded and decoded.
Another aspect of the present invention, provide a kind of multi-client to bind the system of encoder and decoder, this system comprises server end and multiple client;
Described server end comprises memory cell, PORT COM, receiving element, determining unit and binding unit;
Described memory cell is for storing the many group coding device corresponding with numerous types of data and decoder;
Described communication unit is used for setting up respectively the multiple transmission control protocol sessions with multiple described client, and creates the multiple task objects corresponding with multiple described transmission control protocol session;
Described receiving element is used for first packet being received each described client transmission by described task object;
Described determining unit is used for first packet sent according to each described client, determines the described data type of each described task object respectively;
Described binding unit is used for the described data type according to each described task object, in described server end, bind the encoder corresponding with each described task object and decoder respectively, thus follow-up packet in each described task object is encoded and decoded.
In the systems described in the present invention, described data type is: Hypertext Transmission Protocol, hypertext links markup language, post office protocol, internet information access protocal, Simple Mail Transfer protocol, joint photographic experts group, GIF(Graphic Interchange format) or Java language;
The data type of all packets of the follow-up transmission of this client drawn together by described first data handbag that each client sends.
In the systems described in the present invention, first packet of described determining unit also for sending according to each described client, data type described at least one determining each described task object respectively.
In the systems described in the present invention, described binding unit comprises judging unit and processing unit;
Described judging unit is for judging whether there is identical described data type in multiple described task object;
Described processing unit is used for according to the identical described data type existed in multiple described task object, for there is the described task object binding same group decoder corresponding with described task object and the encoder of identical described data type in described server end, be the described task object binding encoder corresponding with described task object and the decoder of described data type not identical in multiple described task object.
Implement the method and system of a kind of multi-client binding encoder of the present invention and decoder, there is following beneficial effect: the system resource of Appropriate application server end, accelerate the speed of the packet of process different types of data, and when server end needs to adopt the client of multiple transmission control protocol in the access of same PORT COM, the reasonable distribution process of handle packet.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flow chart of the method for a kind of multi-client binding encoder that provides of first embodiment of the invention and decoder;
Fig. 2 is the structural representation of first packet;
Fig. 3 is the block diagram of the system of a kind of multi-client binding encoder that provides of first embodiment of the invention and decoder;
Fig. 4 is the flow chart of the method for a kind of multi-client binding encoder that provides of second embodiment of the invention and decoder;
Fig. 5 is the block diagram of the system of a kind of multi-client binding encoder that provides of second embodiment of the invention and decoder.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, a kind of multi-client provided in first embodiment of the invention is bound in the flow chart of the method for encoder and decoder, a kind of multi-client is provided to bind the method for encoder and decoder, comprise server end and multiple client, the method is by TCP connection server end and multiple client in transport layer, under normal circumstances, server end needs the client adopting different communications protocol in same PORT COM access in application layer, the data type that different communications protocol is corresponding different, the method comprises the following steps:
A, the many group coding device corresponding with numerous types of data and decoder are set in server end; Usually, the data type of application layer is: Hypertext Transmission Protocol, hypertext links markup language, post office protocol, internet information access protocal, Simple Mail Transfer protocol, joint photographic experts group, GIF(Graphic Interchange format) or Java language.Such as: the group coding device that Hypertext Transmission Protocol is corresponding and decoder are HTTP encoder and HTTP decoder.
B, set up multiple transmission control protocol sessions of server end and multiple client respectively, and create the multiple task objects corresponding with multiple transmission control protocol session; Concrete, the session request of multiple client is monitored in real time in server end, and set up multiple transmission control protocol sessions of server end and default multiple clients respectively according to session request, and create the multiple task objects corresponding with multiple transmission control protocol session in real time.This step occurs in the transport layer in osi model, and the module can being responsible for transport layer connection specially by completes the connection with multiple client in server end.
C, in server end by task object receive each client send first packet; Packet structure as shown in Figure 2, as common data structure, contains top, source mouth, destination interface, data sequence number etc.Difference is, first packet is default packet, and comprises the data type of all packets of the follow-up transmission of this client.This first packet can be contain first packet in the required information sent of client of presupposed information, also first packet can be sent specially to determine data type, by the packet preset, data type, transmission time and size of data etc. can be determined exactly.
In Fig. 2:
Top, source mouth is 16, and scope is 0-65535;
Destination interface is 16, and scope is 0-65535;
Data sequence number 32, TCP is that each byte sent compiles a number, stores the sequence number of current data packet data first character joint here;
Acknowledged sequence number 32, in order to safety, TCP tells that recipient wishes the sequence number that the first character that he receives packet next time saves;
Offset 4, similar IP, show that data have how many 32 apart from packet header.
Retain 6, do not use, answer zero setting;
Urgent bit URG, as URG=1, shows that urgent pointer field is effective.It tells in this message segment of system have emergency data, should transmit as early as possible (data being equivalent to high priority);
Acknowledgement bit ACK, only has the confirmation field as ACK=1 just effective.As ACK=0, it is number invalid to confirm;
Reset bit RST (Reset), as RST=1, shows to occur critical errors (as due to main frame collapse or other reasons) during TCP connects, necessary release connection, and then re-establishes transport connection;
Synchronization bit SYN, synchronization bit SYN is set to 1, just represents that this is that a connection request or connection accept message;
Stop bit FIN (Final), be used for release one connection.As FIN=1, show that the data of the transmitting terminal of this message segment are sent, and require that release transport connects;
Window field 16, window field be used for control the other side send data volume, unit is byte.The receive window size of oneself is determined according to the spatial cache size arranged in one end that TCP connects, and then notifies that the other side is to determine the upper limit of the send window of the other side;
Bag School Affairs 16, comprises stem and these two parts of data.Calculate inspection and time, the pseudo-stem of 12 bytes will be added before TCP message section;
Urgent pointer 16, urgent pointer points out the sequence number of last byte of the emergency data in this message segment;
Selectable option 24, similar IP is selectable option;
Fill 8, make option gather together enough 32;
User data, can determine size according to actual needs.
D, in server end, according to first packet that each client sends, determine the data type of each task object respectively; Wherein, each task object can comprise numerous types of data, concrete, according to first packet that each client sends, determines at least one data type of each task object respectively.Such as, HTTP (Hypertext Transmission Protocol), HTML (hypertext links markup language) etc. can be comprised in a task object.Judge that type of data packet is that application layer in osi model completes, can by arranging a processor specially for judging this data type in server end.
E, in server end, according to the data type of each task object, in server end, bind the encoder corresponding with each task object and decoder respectively, thus packet follow-up in each task object is encoded and decoded.After binding encoder and decoder, include and have identical data type with regard to giving tacit consent to follow-up packet with first packet, so follow-up packet all adopts the encoder and decoder bound.
As shown in Figure 3, a kind of multi-client provided in first embodiment of the invention is bound in the block diagram of the system of encoder and decoder, this system comprises server end and multiple client, for binding the encoder corresponding with multiple client and decoder in server end; Wherein,
Server end comprises memory cell, PORT COM, receiving element, determining unit and binding unit; Wherein, memory cell, PORT COM, receiving element, determining unit and binding unit all can realize at Server Programming.
Memory cell is for storing the many group coding device corresponding with numerous types of data and decoder; Concrete, data type is: Hypertext Transmission Protocol, hypertext links markup language, post office protocol, internet information access protocal, Simple Mail Transfer protocol, joint photographic experts group, GIF(Graphic Interchange format) or Java language.
Communication unit is used for setting up respectively the multiple transmission control protocol sessions with multiple client, and creates the multiple task objects corresponding with multiple transmission control protocol session.
Receiving element is used for first packet being received the transmission of each client by task object; The data type of all packets of the follow-up transmission of this client drawn together by described first data handbag that each client sends.
Determining unit is used for first packet sent according to each client, determines the data type of each task object respectively; If task object comprises numerous types of data, so then according to first packet that each client sends, determine at least one data type of each task object respectively.
Binding unit is used for the data type according to each task object, binds the encoder corresponding with each task object and decoder respectively, thus encode to packet follow-up in each task object and decode in server end.
The beneficial effect of the present embodiment is, for data type binding task object, the system resource of Appropriate application server end, adds the speed of the packet of the different types of data that gets outta there.
As shown in Figure 4, a kind of multi-client provided in second embodiment of the invention is bound in the flow chart of the method for encoder and decoder, the present embodiment is different from the first embodiment part and is, if there is identical data type in multiple task object, then same group of decoder and encoder are bound to the task object of same data type, particularly, the method comprises the following steps:
A, the many group coding device corresponding with numerous types of data and decoder are set in server end;
B, set up multiple transmission control protocol sessions of server end and multiple client respectively, and create the multiple task objects corresponding with multiple transmission control protocol session;
C, in server end by task object receive each client send first packet;
D, in server end according to first packet that each client sends, determine the data type of each task object respectively;
E, in server end according to the data type of each task object, in server end, bind the encoder corresponding with each task object and decoder respectively, thus packet follow-up in each task object encoded and decoded.
Wherein, step e comprises following sub-step:
E1, judge whether there is identical data type in multiple task object, if there is identical data type in multiple task object, go to step E2, if there is not identical data type in multiple task object, go to step E3;
E2, according to the identical data type existed in multiple task object, for there is the task object binding same group decoder corresponding with task object and the encoder of identical data type in server end, for the task object binding encoder corresponding with task object and the decoder of data type not identical in multiple task object, go to step E4;
E3, data type according to each task object, bind the encoder corresponding with each task object and decoder respectively, go to step E4 in server end;
E4, packet follow-up in each task object is encoded and decoded.
As shown in Figure 4, a kind of multi-client provided in second embodiment of the invention is bound in the block diagram of the system of encoder and decoder, and the present embodiment is different from the first embodiment part and is, binding unit comprises judging unit and processing unit; Wherein,
Judging unit is for judging whether there is identical data type in multiple task object;
Processing unit is used for according to the identical data type existed in multiple task object, for there is the task object binding same group decoder corresponding with task object and the encoder of identical data type in server end, be the task object binding encoder corresponding with task object and the decoder of data type not identical in multiple task object.After binding corresponding encoder and decoder, packet follow-up in this task object is encoded and decoded.
The beneficial effect of the present embodiment is, adopts same group coding device and decoder for identical data type, save the internal memory cost of server end, the reasonable distribution treatment progress of packet.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (10)
1. a method for multi-client binding encoder and decoder, comprise server end and multiple client, it is characterized in that, the method comprises the following steps:
A, the many group coding device corresponding with numerous types of data and decoder are set in described server end;
B, set up multiple transmission control protocol sessions of described server end and multiple described client respectively, and create the multiple task objects corresponding with multiple described transmission control protocol session;
C, in described server end, receive by described task object first packet that each described client sends;
D, described first packet sent according to each described client, determine the described data type of each described task object respectively;
E, described data type according to each described task object, bind the encoder corresponding with each described task object and decoder respectively in described server end.
2. method according to claim 1, it is characterized in that, in described steps A, described data type is: Hypertext Transmission Protocol, hypertext links markup language, post office protocol, internet information access protocal, Simple Mail Transfer protocol, joint photographic experts group, GIF(Graphic Interchange format) or Java language.
3. method according to claim 1, it is characterized in that, in described step B, the session request of multiple described client is monitored in real time in described server end, and set up multiple transmission control protocol sessions of described server end and default multiple clients respectively according to described session request, and create the multiple task objects corresponding with multiple described transmission control protocol session in real time.
4. method according to claim 1, is characterized in that, in described step C, the data type of all packets of the follow-up transmission of this client drawn together by described first data handbag that each client sends.
5. method according to claim 1, is characterized in that, in described step D, according to first packet that each described client sends, and data type described at least one determining each described task object respectively.
6. method according to claim 1, is characterized in that, described step e comprises following sub-step:
E1, judge whether there is identical described data type in multiple described task object, if there is identical described data type in multiple described task object, go to step E2, if there is not identical described data type in multiple described task object, go to step E3;
E2, according to the identical described data type existed in multiple described task object, for there is the described task object binding same group decoder corresponding with described task object and the encoder of identical described data type in described server end, for the described task object binding encoder corresponding with described task object and the decoder of described data type not identical in multiple described task object, go to step E4;
E3, described data type according to each described task object, bind the encoder corresponding with each described task object and decoder respectively, go to step E4 in described server end;
E4, follow-up packet in each described task object is encoded and decoded.
7. a system for multi-client binding encoder and decoder, this system comprises server end and multiple client, it is characterized in that,
Described server end comprises memory cell, PORT COM, receiving element, determining unit and binding unit;
Described memory cell is for storing the many group coding device corresponding with numerous types of data and decoder;
Described communication unit is used for setting up respectively the multiple transmission control protocol sessions with multiple described client, and creates the multiple task objects corresponding with multiple described transmission control protocol session;
Described receiving element is used for first packet being received each described client transmission by described task object;
Described determining unit is used for first packet sent according to each described client, determines the described data type of each described task object respectively;
Described binding unit is used for the described data type according to each described task object, in described server end, bind the encoder corresponding with each described task object and decoder respectively, thus follow-up packet in each described task object is encoded and decoded.
8. system according to claim 7, is characterized in that,
Described data type is: Hypertext Transmission Protocol, hypertext links markup language, post office protocol, internet information access protocal, Simple Mail Transfer protocol, joint photographic experts group, GIF(Graphic Interchange format) or Java language;
The data type of all packets of the follow-up transmission of this client drawn together by described first data handbag that each client sends.
9. system according to claim 7, is characterized in that, first packet of described determining unit also for sending according to each described client, data type described at least one determining each described task object respectively.
10. system according to claim 7, is characterized in that, described binding unit comprises judging unit and processing unit;
Described judging unit is for judging whether there is identical described data type in multiple described task object;
Described processing unit is used for according to the identical described data type existed in multiple described task object, for there is the described task object binding same group decoder corresponding with described task object and the encoder of identical described data type in described server end, be the described task object binding encoder corresponding with described task object and the decoder of described data type not identical in multiple described task object.
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