WO2017096909A1 - 建立数据连接的方法及装置 - Google Patents

建立数据连接的方法及装置 Download PDF

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Publication number
WO2017096909A1
WO2017096909A1 PCT/CN2016/090505 CN2016090505W WO2017096909A1 WO 2017096909 A1 WO2017096909 A1 WO 2017096909A1 CN 2016090505 W CN2016090505 W CN 2016090505W WO 2017096909 A1 WO2017096909 A1 WO 2017096909A1
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Prior art keywords
data
callback function
terminal
target
target application
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PCT/CN2016/090505
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English (en)
French (fr)
Inventor
吴楠
高应军
何超
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小米科技有限责任公司
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Publication of WO2017096909A1 publication Critical patent/WO2017096909A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H04L45/745—Address table lookup; Address filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/803—Application aware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/101—Access control lists [ACL]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/63—Routing a service request depending on the request content or context
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/60—Subscription-based services using application servers or record carriers, e.g. SIM application toolkits

Definitions

  • the present disclosure relates to the field of network technologies, and in particular, to a method and an apparatus for establishing a data connection.
  • the data service of smart devices has also developed rapidly.
  • different smart devices can perform data transmission. For example, if a data connection is established between the smartphone and the smart TV, the data in the smartphone can be sent to the smart TV.
  • different applications can be installed on one smart device, so that one smart device can transmit data with another smart device through the installed application, and even one smart device can pass multiple applications with another smart device.
  • Data transfer For example, when the A application in the smartphone is to transmit data with the A * application in the smart TV, it is necessary to establish a data connection with the port Port A in the smart TV, and when the B application in the smart phone is to be associated with the smart TV. When the B * application transmits data, it needs to establish a data connection with the port Port B in the smart TV.
  • Embodiments of the present disclosure provide a method and apparatus for establishing a data connection.
  • the technical solution is as follows:
  • a method of establishing a data connection including:
  • the target application identifier and the preset callback function correspondence table Determining, according to the target application identifier and the preset callback function correspondence table, a target callback function corresponding to the target application, where the preset callback function correspondence table includes an application identifier and a corresponding callback function, wherein the target callback function is used to Transmitting the data to a data storage address corresponding to the target application;
  • the method before the receiving the data packet sent by the terminal, the method further includes:
  • the method further includes:
  • the establishing a data connection with the terminal includes:
  • the data packet sent by the receiving terminal includes:
  • Receive different types of data packets sent by the terminal by using different data connections established with the terminal and the type of the data packet is determined by at least one of a sending frequency and a data packet size of the data packet.
  • an apparatus for establishing data communication including:
  • a receiving module configured to receive a data packet sent by the terminal, where the data packet carries a target application identifier and transmits data
  • An extraction module configured to extract the target application identifier
  • a determining module configured to determine, according to the target application identifier and the preset callback function correspondence table extracted by the extraction module, a target callback function corresponding to the target application, where the preset callback function correspondence table includes an application identifier and a corresponding callback function
  • the target callback function is configured to send the transmission data to a data storage address corresponding to the target application
  • a running module configured to run the target callback function determined by the determining module, and send the transmission data to the target application.
  • the receiving module is further configured to receive a registration message sent by the local application, where the registration message carries an application identifier and a callback function;
  • the device also includes:
  • a storage module configured to store the application identifier and the callback function correspondingly into the preset callback function correspondence table.
  • the receiving module is further configured to receive a connection establishment request sent by the terminal;
  • the device also includes:
  • a module is established for establishing a data connection with the terminal.
  • the apparatus further includes:
  • a detecting module configured to detect whether the local end has a free port
  • the establishing module is further configured to establish a data connection with the terminal through the idle port when the detecting module determines that the local end has an idle port.
  • the receiving module is further configured to receive, by using different data connections established with the terminal, different types of data packets sent by the terminal, and data.
  • the type of packet is determined by at least one of a transmission frequency and a packet size of the data packet.
  • an apparatus for establishing a data connection including:
  • a memory for storing executable instructions of the processor
  • processor is used to:
  • the target application identifier and the preset callback function correspondence table Determining, according to the target application identifier and the preset callback function correspondence table, a target callback function corresponding to the target application, where the preset callback function correspondence table includes an application identifier and a corresponding callback function, wherein the target callback function is used to Transmitting the data to a data storage address corresponding to the target application;
  • the data packets are uniformly managed and sent, and the terminal does not need to establish a connection with too many ports, which can save port resources.
  • FIG. 1 is a flow chart of a method of establishing a communication connection, according to an exemplary embodiment.
  • 2A is a flow chart of a method of establishing a communication connection, according to another exemplary embodiment.
  • FIG. 2B is a schematic diagram of establishing a communication connection according to the embodiment of FIG. 2A.
  • FIG. 2C is a schematic diagram of another communication connection established in the embodiment of FIG. 2A.
  • FIG. 2D is a schematic diagram of a data packet involved in the embodiment of FIG. 2A.
  • FIG. 3 is a block diagram of an apparatus for establishing a communication connection, according to an exemplary embodiment.
  • FIG. 4 is a block diagram of an apparatus for establishing a communication connection, according to another exemplary embodiment.
  • FIG. 5 is a block diagram of a terminal 500, according to an exemplary embodiment.
  • the method provided by the embodiment of the present disclosure may be applied to a smart device, where different applications may be installed, and the smart device may perform data transmission with other smart devices through the installed application.
  • the smart device may be a smart home such as a smart TV or a smart speaker, or may be a terminal such as a mobile phone, a tablet computer or a computer.
  • FIG. 1 is a flow chart showing a method of establishing a data connection, according to an exemplary embodiment.
  • the method of establishing a data connection may include the following steps:
  • step 101 a data packet sent by the terminal is received, where the data packet carries the target application identifier and the transmission data.
  • step 102 the target application identifier is extracted.
  • step 103 determining, according to the target application identifier and the preset callback function correspondence table, a target callback function corresponding to the target application, the preset callback function correspondence table includes an application identifier and a corresponding callback function, wherein the target callback function is used for transmitting The data is sent to the data storage address corresponding to the target application.
  • step 104 the target callback function is run to transmit the transmitted data to the target application.
  • the method provided by the embodiment of the present disclosure determines the target callback function according to the target application identifier and the preset callback function correspondence table by extracting the target application identifier carried in the data packet sent by the terminal, and transmits the transmission data by running the target callback function. Give the target application. In this way, the received data packet is uniformly managed and transmitted, and the terminal does not need to establish a connection with an excessive port, thereby saving port resources.
  • the method before the receiving the data packet sent by the terminal, the method further includes:
  • the application identifier and the callback function carried in the registration message are stored in the preset callback function correspondence table, so that when the data packet is received, the callback function can be determined according to the target application identifier, thereby implementing The received transmission data is sent to the corresponding application.
  • the method further includes:
  • the above-mentioned data connection between the terminal and the terminal can be realized by receiving a connection establishment request and establishing a data connection with the terminal.
  • the establishing a data connection with the terminal includes:
  • the above establishes a data connection by establishing the idle port with the terminal.
  • different data connections can be established.
  • the data packet sent by the receiving terminal includes:
  • Receive different types of data packets sent by the terminal by using different data connections established with the terminal and the type of the data packet is determined by at least one of a sending frequency and a data packet size of the data packet.
  • the above-mentioned different data connections established with the terminal receive different types of data packets, avoiding interference between different types of data packets, and improving port utilization efficiency.
  • FIG. 2A is a flowchart of a method for establishing a data connection according to another exemplary embodiment.
  • the method for establishing a data connection in this embodiment is performed by a smart device for illustration.
  • the method of establishing a data connection may include the following steps:
  • step 201 the smart device receives a registration message sent by an application in the smart device, where the registration message carries an application identifier and a callback function.
  • a UDT (UDP-based Data Transfer Protocol) module is established in the smart device, and the UDT module is configured. Used to receive and send data uniformly.
  • the application in the smart device automatically sends a registration message to the UDT module.
  • the registration message carries an application identifier and a callback function, where the application identifier is used to uniquely identify an application, and the application identifier has a one-to-one correspondence with the callback function, that is, the smart device can uniquely determine the corresponding callback function according to the application identifier, and the application
  • the identifier can be a 16-bit integer number.
  • the callback function is used to send the transmission data to the data storage address corresponding to the application, and the callback function may be generated by the application, or may be sent by the application to the intermediate software, and then generated by the intermediate software.
  • step 202 the smart device stores the application identifier and the callback function correspondingly into the preset callback function correspondence table.
  • the smart device can establish a preset callback function correspondence table by using the foregoing steps 201 and 202.
  • the application identifier is used as an index, and the application identifier is used.
  • the callback function is stored in the preset callback function correspondence table. That is, the preset callback function correspondence table includes an application identifier and a corresponding callback function.
  • the foregoing storing the application identifier and the callback function correspondingly into the preset callback function correspondence table may be a new process, specifically, the preset callback function correspondence table in the database is already stored. The corresponding relationship between the application identifier and the callback function is added, and the registration message received this time is newly added, and the smart device stores the application identifier and the callback function carried in the registration message received this time to the preset callback function. In the table. In a possible implementation process, if this is connected The received registration message is newly added. If the smart device detects that the application identifier and the callback function carried in the registration message already exist in the corresponding callback function correspondence table in the database, the storage is not repeated.
  • step 202 may be performed before the terminal sends a connection request, or may be sent in step 203.
  • the terminal may also perform the connection establishment request with the step 203.
  • step 203 the terminal sends a connection establishment request to the smart device.
  • a UDTClient module is disposed on the terminal side. Before the terminal sends a data packet to the smart device, the UDTClient module may send a connection establishment request to the smart device, where the UDTClient module is configured to send a connection establishment request to the smart device.
  • the data packet may include multiple types. If the terminal only establishes a connection with one port of the smart device, the smart device can only receive different types of data packets through the same port, so if the terminal simultaneously sends different types.
  • the data packet is easy to cause port congestion. Therefore, in order to improve the validity of the data packet transmission, the terminal may also establish a plurality of different data connections with the smart device according to the type of the data packet to be sent. Therefore, in this step 203, the terminal may according to the data to be sent.
  • the packet type sends a connection establishment request to the smart device for establishing a data connection corresponding to the packet type.
  • the type of the data packet is determined by at least one of a sending frequency and a data packet size of the data packet to be sent. For example, a data connection with a higher priority and a smaller packet size is established for a data packet having a higher transmission frequency and a smaller packet size, and a lower priority data connection is established for a data packet having a smaller transmission frequency and a larger packet size.
  • the embodiment does not limit the connection of which priority is specifically established. For different packet types mentioned above, different connection establishment requests can be sent.
  • the data packet can be divided into the following three different types:
  • the data packet is a first type of data packet.
  • the sending frequency of the first type of data packet is greater than the first preset frequency, and the first type of data packet is smaller than the first preset threshold.
  • the first preset frequency may be set by the system by default, or may be set by the user according to actual needs.
  • the first preset threshold may be set by the system by default, or may be set by the user according to actual needs.
  • the first type of data packet is characterized in that the transmission frequency is large, but the data packet is small.
  • the first type of data packet is a chat content sent by the instant chat application in the terminal.
  • the data packet is a second type of data packet.
  • the sending frequency of the second type of data packet is less than the second preset frequency, and the second type of data packet is greater than the second preset threshold.
  • the second preset frequency may be set by the system by default, or may be set by the user according to actual needs.
  • the second preset threshold may be set by the system by default, or may be set by the user according to actual needs.
  • the second type of data packet is characterized in that the transmission frequency is small, but the data packet is large.
  • the second type of data packet is an audio file sent by the terminal.
  • the data packet is a third type of data packet.
  • the transmission frequency of the third type of data packet is sent according to a preset period.
  • the preset period may be set by the system by default, or may be set by the user according to actual needs.
  • the third type of data packet may be referred to as a real-time data packet, for example, the third type of data packet is a control command sent by the terminal.
  • the terminal when the terminal wants to send the data packet A, and the data packet A belongs to the first type of data packet, the terminal sends a first connection establishment request to the smart device.
  • the terminal wants to send the data packet B, and the data packet B belongs to the second type of data packet, the terminal sends a second connection establishment request to the smart device.
  • three data connections can be established between one terminal and one smart device. Referring to FIG. 2C, on the terminal side, three ports are also provided, which are a first port A', a second port B', and a third port C', respectively.
  • the terminal can send three connection establishment requests, and the foregoing three ports can be used. Establish three connections with the smart device.
  • the terminal can detect whether it has established the same type of data connection with the smart device before sending any connection establishment request, and if it has been established, the data connection can be multiplexed. That is, the method further includes: before the sending the connection establishment request, the terminal acquires the type of the data packet to be sent, and detects whether the UDTClient module has established a data connection with the smart device for sending the data packet of the type, if If it is determined that the data connection is not established, a connection establishment request is sent to the smart device. Conversely, the data connection that has been established for this type of packet is multiplexed.
  • the terminal wants to send the data packet A, and the data packet A belongs to the first type of data packet
  • the terminal detects that the UDTClient module and the smart device establish a data connection for transmitting the first type of data packet
  • the terminal multiplexes the data.
  • the connection sends a packet A to the smart device.
  • step 204 the smart device receives a connection establishment request sent by the terminal.
  • the smart device processes the received connection establishment request in a unique processing manner.
  • a listening port is set, for example, the port number of the listening port is 8080.
  • the listening port is used to connect The connection establishment request sent by the terminal is received.
  • a connection establishment request is sent to the listening port, and the smart device receives the connection establishment request sent by the terminal through the listening port.
  • step 205 the smart device detects whether the local end has a free port, and if yes, step 206 is performed.
  • the smart device has multiple ports, which may be in different usage states, such as being occupied or idle. Therefore, it is necessary to detect whether there is a free port to determine whether the data connection can be successfully established.
  • the smart device is provided with three ports, namely, a first port A, a second port B, and a third port C. If it is detected that the first port A of the smart device is in an idle state, a subsequent step 206 is performed to establish a first data connection with the terminal through the first port A.
  • step 206 when the smart device detects that the local end has an idle port, the smart device establishes a first data connection with the terminal through the idle port.
  • a data connection is established between the terminal and the smart device.
  • the second data connection and the third data connection may be established between the smart device and the terminal.
  • establishing the second data connection and the third data connection specifically include any possible implementation manner as follows:
  • the terminal and the smart device have established the first data connection, when the terminal sends the connection establishment request again, the smart device detects the port in the idle state, and establishes the second port with the terminal.
  • the data connection correspondingly, the terminal establishes a connection with the smart device through another port.
  • the terminal has established the first data connection with the first port A of the smart device through the first port A', when the smart device receives the connection establishment request sent by the terminal again, if the second port B is detected to be idle. And establishing a second data connection with the second port B' of the terminal through the second port B.
  • the smart device can select either one of the ports to establish a second data connection with the terminal.
  • the terminal and the smart device have established the first connection, and the second connection has been established.
  • the terminal sends a connection establishment request to the smart device again, the smart device detects the port in the idle state, and establishes a third data connection between the terminal and the terminal through the port. Accordingly, the terminal also establishes a connection with the smart device through different ports.
  • the second data connection is also established through the second port B' and the second port B of the smart device.
  • the smart device receives the connection establishment request sent by the terminal again, if the third port C is detected to be idle. And establishing a third data connection with the third port C' of the terminal through the third port C.
  • step 207 the terminal transmits a data packet to the smart device through the first data connection.
  • the data packet can be sent to the smart device by using the first data connection request.
  • the terminal may also select different data connections to send different types of data packets according to different types of data packets to be sent. For example, the terminal may send the first type of data packet through the first data connection, the second type data packet through the second data connection, and send the third type of data packet through the third data connection.
  • the terminal can freely choose which data packet to send through which data connection, for example, the first type of data packet can also be sent through the second data connection.
  • the same connection is only used to transmit packets of the same type, that is, if the terminal chooses to send the first type of data packet through the first data connection, the first data connection is only used to transmit the first type of data packet. .
  • step 208 the smart device receives a data packet sent by the terminal, where the data packet carries the target application identifier and the transmission data.
  • the smart device receives different types of data packets sent by the terminal through different data connections established with the terminal. Specifically, the smart device receives different types of data packets through different ports according to the data connection selected by the terminal. For example, if the terminal chooses to send the first type of data packet through the first data connection, the smart device receives the first type of data packet through port A.
  • the data packet is usually composed of a packet header and a transmission data
  • the packet header may carry the target application identifier.
  • the target application identifier is used to instruct the smart device to send the transmission data to the application corresponding to the smart device, and the length thereof is 2B.
  • the transmission data refers to the content to be actually transmitted.
  • the transmission data may be multimedia data such as audio data or video data, or may be a control command or the like.
  • the transmission data may be used to control a virtual object in a game screen currently displayed by the smart device. .
  • the header may further include a header identifier, a protocol version, a start packet identifier, a reserved bit, a packet header length, a data length, and a source application identifier.
  • the header identifier is used to locate the data packet, that is, the start position of a data packet can be determined by using the packet header identifier, for example, the packet header identifier is set to M.
  • the protocol version is used to indicate the version of the UDT protocol used to transmit the data packet, and the length is 4 bits, occupying the 4th to 7th bits in the packet header.
  • a complete resource may be determined. Specifically, when a resource is large, the resource needs to be divided into N data packets, and at this time, the start may be started.
  • the start packet identifier in the packet is set to 1, and the initial packet identifier in the subsequent N-1 packets is set to 0.
  • the N+1th of the initial packet identifier is set to 1 is received again
  • the data packet it can be determined that the first N data packets belong to one resource, so that a complete resource can be determined.
  • the start packet identifier uses only the 3rd bit in the header.
  • the reserved bit can be used to extend the data packet, and its length is 3 bits, occupying the 0th bit to the 2nd bit of the packet header.
  • the length of the packet header is used to indicate the total length of the packet header, in units of Bytes.
  • the length of the packet header in this embodiment is 5 bytes, that is, in the data packet, the 0th byte to the 4th byte are headers.
  • the data length is used to indicate the total length of the transmitted data, for example, 4 bytes in this embodiment.
  • the source application identifier is used to identify which application in the terminal is sent by the terminal, and the source application identifier is a 16-bit integer number, and the length is 2 bytes.
  • the header may also include other combinations, which are not limited in this disclosure.
  • step 209 the smart device extracts the target application identification.
  • the smart device When receiving the data packet sent by the terminal, referring to FIG. 2D, the smart device extracts the target application identifier from the packet header of the data packet.
  • step 210 the smart device determines a target callback function corresponding to the target application according to the target application identifier and the preset callback function correspondence table.
  • the target application identifier is used as an index, and the target callback function corresponding to the target application is determined from the preset callback function correspondence table stored in the database.
  • the target callback function is used to send the transmission data to the data storage address corresponding to the target application.
  • the smart device does not query the target callback function corresponding to the target application identifier, the received data packet is discarded, and an error message is returned to the terminal, so that the terminal receives the error message. After that, perform the corresponding operations, such as resending the data packet.
  • the data packet is unsuccessful, the data packet is discarded in time to avoid affecting the processing progress of the subsequently received data packet, and by returning the error message, the terminal side can take countermeasures in time.
  • step 211 the smart device runs a target callback function to send the transmission data to the target application.
  • the target callback function After determining the target callback function, run the target callback function, so that the acquired transmission data is sent Send to the target app.
  • the target callback function may be a copy function, and the target callback function carries a storage address parameter corresponding to the target application.
  • the transmission data is copied to a storage address corresponding to the target application.
  • the method provided by the embodiment of the present disclosure determines the target callback function according to the target application identifier and the preset callback function correspondence table by extracting the target application identifier carried in the data packet sent by the terminal, and transmits the transmission data by running the target callback function. Give the target application. In this way, the received data packet is uniformly managed and transmitted, and the terminal does not need to establish a connection with an excessive port, thereby saving port resources.
  • FIG. 3 is a block diagram of a device for establishing a data connection, which may be implemented by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the device for establishing a data connection may include:
  • the receiving module 310 is configured to receive a data packet sent by the terminal, where the data packet carries the target application identifier and the transmission data;
  • An extraction module 320 configured to extract the target application identifier
  • the determining module 330 is configured to determine, according to the target application identifier and the preset callback function correspondence table extracted by the extracting module 320, a target callback function corresponding to the target application, where the preset callback function correspondence table includes an application identifier and a corresponding a callback function, wherein the target callback function is configured to send the transmission data to a data storage address corresponding to the target application;
  • the running module 340 is configured to run the target callback function determined by the determining module 330, and send the transmission data to the target application.
  • the device provided by the embodiment of the present disclosure determines the target callback function according to the target application identifier and the preset callback function correspondence table by extracting the target application identifier carried in the data packet sent by the terminal, and transmits the transmission data by running the target callback function. Give the target application. In this way, the received data packet is uniformly managed and transmitted, and the terminal does not need to establish a connection with an excessive port, thereby saving port resources.
  • the receiving module 310 is further configured to receive a registration message sent by the local application, where the registration message carries an application identifier and a callback function;
  • the device also includes:
  • the storage module 350 is configured to store the application identifier and the callback function correspondingly into the preset callback function correspondence table.
  • the receiving module 310 is further configured to receive a connection establishment request sent by the terminal;
  • the device also includes:
  • a module 360 is created for establishing a data connection with the terminal.
  • the device further includes:
  • the detecting module 370 is configured to detect whether the local end has a free port.
  • the establishing module 360 is further configured to establish a data connection with the terminal through the idle port when the detecting module 370 determines that the local end has an idle port.
  • the receiving module 310 is further configured to receive, by using a different data connection established with the terminal, a different type of data packet sent by the terminal, where the type of the data packet is used by the data packet. At least one of the transmission frequency and the packet size is determined.
  • the device for establishing a data connection provided in the foregoing embodiment is only illustrated by the division of the foregoing functional modules when implementing the method for establishing a data connection. In actual applications, the foregoing function may be allocated according to actual needs. It is completed by different functional modules, that is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, with regard to the apparatus in the above embodiments, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment related to the method, and will not be described in detail herein.
  • the terminal 500 includes:
  • the terminal 500 may include an RF (Radio Frequency) circuit 110, a memory 120 including one or more computer readable storage media, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, and a WiFi (Wireless Fidelity, wireless).
  • the fidelity module 170 includes a processor 180 having one or more processing cores, and a power supply 190 and the like. It will be understood by those skilled in the art that the terminal structure shown in FIG. 5 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements. among them:
  • the RF circuit 110 can be used for transmitting and receiving information or during a call, receiving and transmitting signals, in particular, After receiving the downlink information of the base station, it is processed by one or more processors 180; in addition, the data related to the uplink is transmitted to the base station.
  • the RF circuit 110 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, an LNA (Low Noise Amplifier). , duplexer, etc.
  • SIM Subscriber Identity Module
  • RF circuitry 110 can also communicate with the network and other devices via wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access). , Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), e-mail, SMS (Short Messaging Service), and the like.
  • GSM Global System of Mobile communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • e-mail Short Messaging Service
  • the memory 120 can be used to store software programs and modules, and the processor 180 executes various functional applications and data processing by running software programs and modules stored in the memory 120.
  • the memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to The data created by the use of the terminal 500 (such as audio data, phone book, etc.) and the like.
  • memory 120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 120 may also include a memory controller to provide access to memory 120 by processor 180 and input unit 130.
  • the input unit 130 can be configured to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.
  • input unit 130 can include touch-sensitive surface 131 as well as other input devices 132.
  • Touch-sensitive surface 131 also referred to as a touch display or trackpad, can collect touch operations on or near the user (such as a user using a finger, stylus, etc., on any suitable object or accessory on touch-sensitive surface 131 or The operation near the touch-sensitive surface 131) and driving the corresponding connecting device according to a preset program.
  • the touch-sensitive surface 131 can include two portions of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 180 is provided and can receive commands from the processor 180 and execute them.
  • the touch-sensitive surface 131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • input form Element 130 may also include other input devices 132.
  • other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • Display unit 140 can be used to display information entered by the user or information provided to the user and various graphical user interfaces of terminal 500, which can be constructed from graphics, text, icons, video, and any combination thereof.
  • the display unit 140 may include a display panel 141.
  • the display panel 141 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like.
  • the touch-sensitive surface 131 may cover the display panel 141, and when the touch-sensitive surface 131 detects a touch operation thereon or nearby, it is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 according to the touch event The type provides a corresponding visual output on display panel 141.
  • touch-sensitive surface 131 and display panel 141 are implemented as two separate components to implement input and input functions, in some embodiments, touch-sensitive surface 131 can be integrated with display panel 141 for input. And output function.
  • Terminal 500 can also include at least one type of sensor 150, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light, and the proximity sensor may close the display panel 141 when the terminal 500 moves to the ear. / or backlight.
  • the gravity acceleration sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity.
  • the terminal 500 can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, here Let me repeat.
  • the audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the terminal 500.
  • the audio circuit 160 can transmit the converted electrical data of the received audio data to the speaker 161 for conversion to the sound signal output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal by the audio circuit 160. After receiving, it is converted into audio data, and then processed by the audio data output processor 180, transmitted to the terminal, for example, via the RF circuit 110, or outputted to the memory 120 for further processing.
  • the audio circuit 160 may also include an earbud jack to provide communication of the peripheral earphones with the terminal 500.
  • WiFi is a short-range wireless transmission technology
  • the terminal 500 can help the user through the WiFi module 170.
  • Sending and receiving email, browsing the web, and accessing streaming media provides users with wireless broadband Internet access.
  • FIG. 5 shows the WiFi module 170, it can be understood that it does not belong to the essential configuration of the terminal 500, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 180 is the control center of the terminal 500, connecting various portions of the entire handset with various interfaces and lines, by running or executing software programs and/or modules stored in the memory 120, and recalling data stored in the memory 120, The various functions and processing data of the terminal 500 are performed to perform overall monitoring of the mobile phone.
  • the processor 180 may include one or more processing cores; preferably, the processor 180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 180.
  • the terminal 500 also includes a power source 190 (such as a battery) for powering various components.
  • a power source 190 such as a battery
  • the power source can be logically coupled to the processor 180 through a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • Power supply 190 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
  • the terminal 500 may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
  • the display unit of the terminal is a touch screen display
  • the terminal further includes a memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be processed by one or more Execution.
  • the one or more programs include methods for performing a setup data connection as provided by the embodiment shown in FIG. 1 or 2.

Abstract

本公开是关于一种建立数据连接的方法及装置，属于网络技术领域。本公开通过接收终端发送的数据包，该数据包携带目标应用标识以及传输数据，提取目标应用标识，根据目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，运行目标回调函数，将传输数据发送给目标应用。通过提取终端发送的数据包中所携带的目标应用标识，根据目标应用标识以及预设回调函数对应表，确定目标回调函数，通过运行目标回调函数，将传输数据发送给目标应用。如此，对接收到的数据包进行统一管理和发送，终端无需与过多端口建立连接，可以节省端口资源。

Description

建立数据连接的方法及装置
本申请基于申请号为201510919039.8、申请日为2015/12/11的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及网络技术领域，特别涉及一种建立数据连接的方法及装置。
背景技术
随着网络技术的飞速发展，智能设备的数据服务也得到迅速发展。通过建立数据连接，不同智能设备可以进行数据传输。例如，若将智能手机与智能电视之间建立数据连接，则可以将智能手机中的数据发送到智能电视中。
在相关技术中，一个智能设备上还可以安装有不同应用，从而一个智能设备可以与另一个智能设备通过所安装的应用进行数据传输，甚至，一个智能设备可以通过多个应用与另一个智能设备进行数据传输。例如，当智能手机中的A应用要与智能电视中的A*应用传输数据时，需要与智能电视中的端口Port A建立数据连接，而当该智能手机中的B应用要与该智能电视中的B*应用传输数据时，需要与智能电视中的端口Port B建立数据连接。
发明内容
本公开实施例提供了一种建立数据连接的方法及装置。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种建立数据连接的方法，包括：
接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
提取所述目标应用标识；
根据所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
运行所述目标回调函数，将所述传输数据发送给所述目标应用。
在本公开实施例的第一方面的第一种可能的实现方式中，所述接收终端发送的数据包之前，所述方法还包括：
接收本端应用发送的注册消息，所述注册消息携带应用标识和回调函数；
将所述应用标识和所述回调函数对应存储至所述预设回调函数对应表中。
在本公开实施例的第一方面的第二种可能的实现方式中，所述方法还包括：
接收终端发送的建立连接请求；
建立与所述终端之间的数据连接。
结合本公开实施例的第一方面和第一方面的第二种可能实现方式，在第三种可能的实现方式中，所述建立与所述终端之间的数据连接，包括：
检测本端是否具备空闲端口；
当本端具备空闲端口时，通过所述空闲端口与所述终端建立数据连接。
在本公开实施例的第一方面的第四种可能的实现方式中，所述接收终端发送的数据包包括：
通过与所述终端建立的不同数据连接，接收所述终端发送的不同类型的数据包，数据包的类型由所述数据包的发送频率和数据包大小中至少一项确定。
根据本公开实施例的第二方面，提供了一种建立数据通信的装置，包括：
接收模块，用于接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
提取模块，用于提取所述目标应用标识；
确定模块，用于根据所述提取模块提取的所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
运行模块，用于运行所述确定模块确定的所述目标回调函数，将所述传输数据发送给所述目标应用。
在本公开实施例的第二方面的第一种可能的实现方式中，所述接收模块还用于接收本端应用发送的注册消息，所述注册消息携带应用标识和回调函数；
所述装置还包括：
存储模块，用于将所述应用标识和所述回调函数对应存储至所述预设回调函数对应表中。
在本公开实施例的第二方面的第二种可能的实现方式中，所述接收模块还用于接收终端发送的建立连接请求；
所述装置还包括：
建立模块，用于建立与所述终端之间的数据连接。
结合本公开实施例的第二方面和第二方面的第二种可能实现方式，在第三种可能的实现方式中，所述装置还包括：
检测模块，用于检测本端是否具备空闲端口；
所述建立模块还用于当所述检测模块确定本端具备空闲端口时，通过所述空闲端口与所述终端建立数据连接。
在本公开实施例的第二方面的第四种可能的实现方式中，所述接收模块还用于通过与所述终端建立的不同数据连接，接收所述终端发送的不同类型的数据包，数据包的类型由所述数据包的发送频率和数据包大小中至少一项确定。
根据本公开实施例的第三方面，提供了一种建立数据连接的装置，包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器用于：
接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
提取所述目标应用标识；
根据所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
运行所述目标回调函数，将所述传输数据发送给所述目标应用。
本公开实施例提供的技术方案可以包括以下有益效果：
通过提取终端发送的数据包中所携带的目标应用标识，根据目标应用标识以及预设回调函数对应表，确定目标回调函数，通过运行目标回调函数，将传输数据发送给目标应用，如此，对接收到的数据包进行统一管理和发送，终端无需与过多端口建立连接，可以节省端口资源。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的， 并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种建立通信连接的方法流程图。
图2A是根据另一示例性实施例示出的一种建立通信连接的方法流程图。
图2B是图2A实施例所涉及的一种建立通信连接的示意图。
图2C是图2A实施例所涉及的另一种建立通信连接的示意图。
图2D是图2A实施例所涉及的一种数据包的示意图。
图3是根据一示例性实施例示出的一种建立通信连接的装置框图。
图4是根据另一示例性实施例示出的一种建立通信连接的装置框图。
图5是根据一示例性实施例示出的一种终端500的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例提供的方法，可以应用于智能设备中，该智能设备上可以安装有不同应用，通过所安装的应用，该智能设备可以与其它智能设备之间进行数据传输。上述智能设备可以是智能电视、智能音箱等智能家居，也可以是手机、平板电脑或计算机等终端。
图1是根据一示例性实施例示出的一种建立数据连接的方法流程图。该建立数据连接的方法可以包括如下几个步骤：
在步骤101中，接收终端发送的数据包，该数据包携带目标应用标识以及传输数据。
在步骤102中，提取目标应用标识。
在步骤103中，根据目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，预设回调函数对应表包括应用标识以及对应的回调函数，其中，目标回调函数用于将传输数据发送至目标应用对应的数据存储地址。
在步骤104中，运行目标回调函数，将传输数据发送给目标应用。
本公开实施例提供的方法，通过提取终端发送的数据包中所携带的目标应用标识，根据目标应用标识以及预设回调函数对应表，确定目标回调函数，通过运行目标回调函数，将传输数据发送给目标应用。如此，对接收到的数据包进行统一管理和发送，终端无需与过多端口建立连接，可以节省端口资源。
基于上述提供的方法，在一种可能的实现方式中，所述接收终端发送的数据包之前，所述方法还包括：
接收本端应用发送的注册消息，所述注册消息携带应用标识和回调函数；
将所述应用标识和所述回调函数对应存储至所述预设回调函数对应表中。
上述通过接收本端应用发送的注册消息，将注册消息携带的应用标识和回调函数存储至预设回调函数对应表中，以便在接收到数据包时，可以根据目标应用标识确定回调函数，从而实现将接收的传输数据发送给对应的应用。
在另一种可能的实现方式中，所述方法还包括：
接收终端发送的建立连接请求；
建立与所述终端之间的数据连接。
上述通过接收建立连接请求，建立与终端之间的数据连接，可以实现与终端之间进行数据传输。
在另一种可能的实现方式中，所述建立与所述终端之间的数据连接，包括：
检测本端是否具备空闲端口；
当本端具备空闲端口时，通过所述空闲端口与所述终端建立数据连接。
上述通过将检测到的空闲端口与终端建立数据连接，当终端有不同建立连接需求时，可以满足建立不同的数据连接。
在另一种可能的实现方式中，所述接收终端发送的数据包包括：
通过与所述终端建立的不同数据连接，接收所述终端发送的不同类型的数据包，数据包的类型由所述数据包的发送频率和数据包大小中至少一项确定。
上述通过与终端建立的不同数据连接，接收不同类型的数据包，避免不同类型的数据包之间相互干扰，提高了端口的利用效率。
上述所有可选技术方案，可以采用任意结合形成本公开的可选实施例，在此不再一一赘述。
图2A是根据另一示例性实施例示出的一种建立数据连接的方法流程图，本实施例以该建立数据连接的方法由智能设备执行来进行举例说明。该建立数据连接的方法可以包括如下几个步骤：
在步骤201中，智能设备接收智能设备中的应用发送的注册消息，该注册消息携带应用标识和回调函数。
本公开实施例提供的方法，请参考图2B，在智能设备中建立一个UDT(UDP-based Data Transfer Protocol，基于UDP(User Datagram Protocol，用户数据报协议)的数据传输协议)模块，该UDT模块用于统一接收和发送数据。
为了使得智能设备能够将所接收到的传输数据发送给对应的应用，当检测到智能设备启动时，智能设备中的应用自动向UDT模块发送注册消息。其中，注册消息携带应用标识和回调函数，该应用标识用于唯一标识一个应用，且该应用标识与回调函数一一对应，即智能设备可以根据该应用标识，唯一确定对应的回调函数，应用标识可以为16位的整形数。其中，该回调函数用于将传输数据发送至应用对应的数据存储地址，该回调函数可以是由应用生成，也可以是由应用发送给中间软件，再由中间软件生成。
在步骤202中，智能设备将应用标识和回调函数对应存储至预设回调函数对应表中。
智能设备在建立UDT模块时可以通过上述步骤201和步骤202的方式建立预设回调函数对应表，而在接收到其它应用发送的应用标识和回调函数时，以应用标识为索引，将应用标识和回调函数存储至该预设回调函数对应表中。即预设回调函数对应表包括应用标识以及对应的回调函数。
在一种可能的实现方式中，上述将应用标识和回调函数对应存储至预设回调函数对应表中可以是一个新增的过程，具体地，在数据库中的预设回调函数对应表中已经存储了一些应用标识和回调函数之间的对应关系，而本次接收到的注册消息为新增加的，智能设备将本次接收到的注册消息携带的应用标识和回调函数存储至预设回调函数对应表中。在一种可能的实现过程中，若本次接 收到的注册消息为新增加的，如果智能设备检测到数据库中的预设回调函数对应表中已经存有该注册消息携带的应用标识和回调函数时，则不再重复存储。
需要说明的是，步骤202存储过程和步骤203终端发送建立连接请求之间没有严格的先后执行顺序，即步骤202存储过程可以在步骤203终端发送建立连接请求之前执行，也可以在步骤203终端发送建立连接请求之后执行，还可以与步骤203终端发送建立连接请求同时执行。
在步骤203中，终端向智能设备发送建立连接请求。
请参考图2B，在终端侧设置有UDTClient模块，终端向智能设备发送数据包之前，可以通过UDTClient模块向智能设备发送建立连接请求，UDTClient模块用于向智能设备发送建立连接请求。
在实际应用过程中，数据包可能包括多种类型，若终端只与智能设备的一个端口建立连接，则智能设备只能通过该同一端口接收不同类型的数据包，如此，若终端同时发送不同类型的数据包，则容易造成端口堵塞。为此，为了提高数据包传输的有效性，终端还可以根据待发送的数据包的类型，与智能设备建立多个不同的数据连接，因此，在该步骤203中，终端可以根据待发送的数据包类型，向智能设备发送用于建立与数据包类型对应数据连接的建立连接请求。
其中，数据包的类型由待发送数据包的发送频率和数据包大小中至少一项确定。例如，为发送频率较高、数据包大小较小的数据包建立优先级较高的数据连接，为发送频率较小、数据包大小较大的数据包建立优先级较低的数据连接，本公开实施例对具体建立哪种优先级的连接不做限定。则针对上述不同的数据包类型，可以发送不同建立连接请求。
在本公开实施例中，根据数据包的发送频率以及数据包大小不同，可以将数据包分为如下三种不同类型：
在第一种可能的实现方式中，数据包为第一类数据包。该第一类数据包的发送频率大于第一预设频率，且第一类数据包小于第一预设阈值。其中，第一预设频率可以由系统默认设置，也可以由用户根据实际需求自主设置，同理，第一预设阈值可以由系统默认设置，也可以由用户根据实际需求自主设置。该第一类数据包的特点在于，其发送频率较大，但数据包较小，例如，第一类数据包为终端中即时聊天应用发送的聊天内容。
在第二种可能的实现方式中，数据包为第二类数据包。该第二类数据包的发送频率小于第二预设频率，且第二类数据包大于第二预设阈值。其中，第二预设频率可以由系统默认设置，也可以由用户根据实际需求自主设置，同理，第二预设阈值可以由系统默认设置，也可以由用户根据实际需求自主设置。该第二类数据包的特点在于，其发送频率较小，但数据包较大，例如，第二类数据包为终端发送的音频文件。
在第三种可能的实现方式中，数据包为第三类数据包。该第三类数据包的发送频率为按照预设周期发送。其中，预设周期可以由系统默认设置，也可以由用户根据实际需求自主设置。第三类数据包可以称为实时数据包，例如，该第三类数据包为终端发送的控制指令。
例如，当终端想要发送数据包A，该数据包A属于第一类数据包时，则终端向智能设备发送第一建立连接请求。当终端想要发送数据包B，该数据包B属于第二类数据包时，则终端向智能设备发送第二建立连接请求。基于上述的三种类型数据包，可以为一个终端和一个智能设备之间建立三个数据连接。请参考图2C，在终端侧，也设有三个端口，分别为第一端口A’、第二端口B’和第三端口C’，终端通过发送三个建立连接请求，可以通过上述三个端口与智能设备建立三个连接。
另外，为了避免浪费，可以终端在发送任一建立连接请求之前，可以检测自身与该智能设备是否已建立了相同类型的数据连接，如果已建立，则可复用该数据连接。也即是，该方法还包括：终端在发送建立连接请求之前，获取待发送数据包的类型，并检测UDTClient模块是否已经与智能设备之间建立了用于发送该类型数据包的数据连接，若确定未建立数据连接，则向智能设备发送建立连接请求。反之，复用该类型数据包已建立的数据连接。
例如，终端想要发送数据包A，该数据包A属于第一类数据包时，若终端检测UDTClient模块与智能设备建立了用于传输第一类型数据包的数据连接，则终端复用该数据连接向智能设备发送数据包A。
在步骤204中，智能设备接收终端发送的建立连接请求。
对于智能设备，无论终端发送几个建立连接请求，智能设备均以唯一的处理方式来处理所接收到的建立连接请求。具体地，在智能设备的UDT模块中，设置有一个监听端口，例如，该监听端口的端口号为8080。该监听端口用于接 收终端发送的建立连接请求。当终端想要与智能设备建立连接时，向该监听端口发送建立连接请求，智能设备通过该监听端口，接收终端发送的建立连接请求。
在步骤205中，智能设备检测本端是否具备空闲端口，如果是，则执行步骤206。
智能设备上具有多个端口，该多个端口可能处于不同的使用状态，如已经被占用或者空闲，因此，需要检测是否具备空闲端口，以确定是否能成功建立数据连接。请参考图2C，智能设备设置有三个端口，分别为第一端口A、第二端口B和第三端口C。若检测到智能设备的第一端口A处于空闲状态，则执行后续步骤206，以通过该第一端口A与终端建立第一数据连接。
在步骤206中，智能设备检测到本端具备空闲端口时，通过所述空闲端口与终端建立第一数据连接。
上述终端与智能设备之间仅建立了一个数据连接，在一种可能的实现方式中，智能设备与终端之间还可以建立第二数据连接和第三数据连接。具体地，当终端发送的多个建立连接请求，建立第二数据连接和第三数据连接具体包括如下任一种可能的实现方式：
在第一种可能的实现方式中，若终端与智能设备已经建立了第一数据连接，当终端再次发送建立连接请求时，智能设备检测处于空闲状态的端口，并将该端口与终端建立第二数据连接，相应地，终端通过另外一个端口与智能设备建立连接。
例如，若终端已经通过第一端口A’与智能设备的第一端口A建立了第一数据连接，当智能设备再次接收到终端发送的建立连接请求时，如果检测到第二端口B处于空闲状态，则通过第二端口B与终端的第二端口B’建立第二数据连接。当然，若第三端口C也处于空闲状态，智能设备可以选择两者中的任一端口与终端建立第二数据连接。
在第二种可能的实现方式中，若终端与智能设备已经建立了第一连接，并且已经建立了第二连接。当终端再次向智能设备发送建立连接请求时，智能设备检测处于空闲状态的端口，并通过该端口与终端之间建立第三数据连接，相应地，终端也通过不同的端口与智能设备建立连接。
例如，若终端已经通过第一端口A’与智能设备的第一端口A建立了第一数 据连接，且也通过第二端口B’与智能设备的第二端口B建立了第二数据连接，当智能设备再次接收到终端发送的建立连接请求时，如果检测到第三端口C处于空闲状态，则通过第三端口C与终端的第三端口C’建立第三数据连接。
在步骤207中，终端通过第一数据连接向智能设备发送数据包。
终端与智能设备之间建立第一数据连接后，即可通过该第一数据连接请求，向智能设备发送数据包。
在一种可能的实现方式中，终端还可以根据所要发送的数据包的类型不同，选择不同的数据连接发送不同类型的数据包。例如，终端可以通过第一数据连接发送第一类数据包，通过第二数据连接发送第二类数据包，并通过第三数据连接发送第三类数据包。当然，终端可以自由选择通过哪个数据连接发送哪一类的数据包，例如，也可以通过第二数据连接发送第一类数据包。但是，通常情况下，同一连接只用于传输同类型的数据包，即，若终端选择通过第一数据连接发送第一类数据包，则该第一数据连接只用于传输第一类数据包。
在步骤208中，智能设备接收终端发送的数据包，该数据包携带目标应用标识以及传输数据。
智能设备通过与终端建立的不同数据连接，接收终端发送的不同类型的数据包。具体地，智能设备根据终端选择的数据连接，通过不同的端口接收不同类型的数据包。例如，若终端选择通过第一数据连接发送第一类数据包，则智能设备通过端口A来接收第一类型数据包。
请参考图2D，数据包通常由包头和传输数据两部分组成，包头中可以携带有目标应用标识。目标应用标识用于指示智能设备将传输数据发送给智能设备对应的应用，其长度为2B。传输数据是指实际要传输的内容，传输数据可以是音频数据或视频数据等多媒体数据，也可以是控制指令等，例如，该传输数据可以用于控制智能设备当前显示的游戏画面中的虚拟对象。
另外，请再参考图2D，包头中还可以包括有包头标识、协议版本、起始包标识、保留位、包头长度、数据长度以及源应用标识。
其中，包头标识用于定位数据包，即通过包头标识可以确定一个数据包的起始位置，例如，包头标识设为M。
其中，协议版本用于表示传输该数据包所使用的UDT协议的版本，其长度为4bit，占用包头中的第4bit至第7bit。
其中，对于起始包标识，根据该起始包标识，可以确定一个完整的资源，具体地，当一个资源较大时，需要将资源划分为N个数据包发送，此时，可以将起始包中的起始包标识设置为1，后续的N-1个数据包中起始包标识设置为0，在接收过程中，当再次接收到起始包标识设置为1的第N+1个数据包时，可以确定前N个数据包属于一个资源，从而可以确定一个完整的资源。该起始包标识仅使用包头中的第3bit。
其中，保留位可以用于扩展数据包，其长度为3bit，占用包头的第0bit至第2bit。
其中，包头长度用于表示包头的总长度，以Byte为单位，例如，本实施例中的包头长度为5Byte，即在本数据包中，第0Byte至第4Byte为包头。
其中，数据长度用于表示传输数据的总长度，例如，在本实施例中为4Byte。
其中，源应用标识用于标识该数据包由终端中的哪个应用发送，该源应用标识为16位的整形数，其长度为2Byte。
当然，包头还可以包括其它组合形式，本公开对此不作限定。
在步骤209中，智能设备提取目标应用标识。
当接收到终端发送的数据包时，请参考图2D，智能设备从数据包的包头中提取目标应用标识。
在步骤210中，根据目标应用标识以及预设回调函数对应表，智能设备确定目标应用对应的目标回调函数。
智能设备提取目标应用标识后，以该目标应用标识为索引，从数据库中存储的预设回调函数对应表中确定目标应用对应的目标回调函数。其中，目标回调函数用于将传输数据发送至目标应用对应的数据存储地址。
在一种可能的实现方式中，若智能设备未查询到该目标应用标识对应的目标回调函数，则将所接收到的数据包丢弃，并且，向终端返回错误消息，以使终端接收到错误消息后，执行对应的操作，如重新发送数据包等。如此，在数据包接收不成功的情况下，及时丢弃该数据包，避免影响对后续所接收的数据包的处理进度，并且，通过返回错误消息，可以使得终端侧可以及时采取应对措施。
在步骤211中，智能设备运行目标回调函数，将传输数据发送给目标应用。
确定目标回调函数后，运行该目标回调函数，使得将获取到的传输数据发 送给目标应用。具体地，该目标回调函数可以为复制函数，目标回调函数中携带目标应用对应的存储地址参数，当运行该目标回调函数时，将传输数据拷贝到该目标应用对应的存储地址中。
本公开实施例提供的方法，通过提取终端发送的数据包中所携带的目标应用标识，根据目标应用标识以及预设回调函数对应表，确定目标回调函数，通过运行目标回调函数，将传输数据发送给目标应用。如此，对接收到的数据包进行统一管理和发送，终端无需与过多端口建立连接，可以节省端口资源。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图3是根据一示例性实施例示出的一种建立数据连接的装置框图，该建立数据连接的装置可以通过软件、硬件或者两者的结合实现。该建立数据连接的装置可以包括：
接收模块310，用于接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
提取模块320，用于提取所述目标应用标识；
确定模块330，用于根据所述提取模块320提取的所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
运行模块340，用于运行所述确定模块330确定的所述目标回调函数，将所述传输数据发送给所述目标应用。
本公开实施例提供的装置，通过提取终端发送的数据包中所携带的目标应用标识，根据目标应用标识以及预设回调函数对应表，确定目标回调函数，通过运行目标回调函数，将传输数据发送给目标应用。如此，对接收到的数据包进行统一管理和发送，终端无需与过多端口建立连接，可以节省端口资源。
基于上述提供的装置，请参考图4，在一种可能的实现方式中，所述接收模块310还用于接收本端应用发送的注册消息，所述注册消息携带应用标识和回调函数；
所述装置还包括：
存储模块350，用于将所述应用标识和所述回调函数对应存储至所述预设回调函数对应表中。
在另一种可能的实现方式中，所述接收模块310还用于接收终端发送的建立连接请求；
所述装置还包括：
建立模块360，用于建立与所述终端之间的数据连接。
在另一种可能的实现方式中，所述装置还包括：
检测模块370，用于检测本端是否具备空闲端口；
所述建立模块360还用于当所述检测模块370确定本端具备空闲端口时，通过所述空闲端口与所述终端建立数据连接。
在另一种可能的实现方式中，所述接收模块310还用于通过与所述终端建立的不同数据连接，接收所述终端发送的不同类型的数据包，数据包的类型由所述数据包的发送频率和数据包大小中至少一项确定。
需要说明的一点是，上述实施例提供的建立数据连接的装置在实现建立数据连接的方法时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本实施例提供了一种终端，该终端可以用于执行上述各个实施例中提供的建立数据连接的方法。参见图5，该终端500包括：
终端500可以包括RF(Radio Frequency，射频)电路110、包括有一个或一个以上计算机可读存储介质的存储器120、输入单元130、显示单元140、传感器150、音频电路160、WiFi(Wireless Fidelity，无线保真)模块170、包括有一个或者一个以上处理核心的处理器180、以及电源190等部件。本领域技术人员可以理解，图5中示出的终端结构并不构成对终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。其中：
RF电路110可用于收发信息或通话过程中，信号的接收和发送，特别地， 将基站的下行信息接收后，交由一个或者一个以上处理器180处理；另外，将涉及上行的数据发送给基站。通常，RF电路110包括但不限于天线、至少一个放大器、调谐器、一个或多个振荡器、用户身份模块(SIM)卡、收发信机、耦合器、LNA(Low Noise Amplifier，低噪声放大器)、双工器等。此外，RF电路110还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于GSM(Global System of Mobile communication，全球移动通讯系统)、GPRS(General Packet Radio Service，通用分组无线服务)、CDMA(Code Division Multiple Access，码分多址)、WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、LTE(Long Term Evolution,长期演进)、电子邮件、SMS(Short Messaging Service，短消息服务)等。
存储器120可用于存储软件程序以及模块，处理器180通过运行存储在存储器120的软件程序以及模块，从而执行各种功能应用以及数据处理。存储器120可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据终端500的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器120可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。相应地，存储器120还可以包括存储器控制器，以提供处理器180和输入单元130对存储器120的访问。
输入单元130可用于接收输入的数字或字符信息，以及产生与用户设置以及功能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入。具体地，输入单元130可包括触敏表面131以及其他输入设备132。触敏表面131，也称为触摸显示屏或者触控板，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触敏表面131上或在触敏表面131附近的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触敏表面131可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器180，并能接收处理器180发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触敏表面131。除了触敏表面131，输入单 元130还可以包括其他输入设备132。具体地，其他输入设备132可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元140可用于显示由用户输入的信息或提供给用户的信息以及终端500的各种图形用户接口，这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成。显示单元140可包括显示面板141，可选的，可以采用LCD(Liquid Crystal Display，液晶显示器)、OLED(Organic Light-Emitting Diode,有机发光二极管)等形式来配置显示面板141。进一步的，触敏表面131可覆盖显示面板141，当触敏表面131检测到在其上或附近的触摸操作后，传送给处理器180以确定触摸事件的类型，随后处理器180根据触摸事件的类型在显示面板141上提供相应的视觉输出。虽然在图5中，触敏表面131与显示面板141是作为两个独立的部件来实现输入和输入功能，但是在某些实施例中，可以将触敏表面131与显示面板141集成而实现输入和输出功能。
终端500还可包括至少一种传感器150，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板141的亮度，接近传感器可在终端500移动到耳边时，关闭显示面板141和/或背光。作为运动传感器的一种，重力加速度传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于终端500还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路160、扬声器161，传声器162可提供用户与终端500之间的音频接口。音频电路160可将接收到的音频数据转换后的电信号，传输到扬声器161，由扬声器161转换为声音信号输出；另一方面，传声器162将收集的声音信号转换为电信号，由音频电路160接收后转换为音频数据，再将音频数据输出处理器180处理后，经RF电路110以发送给比如另一终端，或者将音频数据输出至存储器120以便进一步处理。音频电路160还可能包括耳塞插孔，以提供外设耳机与终端500的通信。
WiFi属于短距离无线传输技术，终端500通过WiFi模块170可以帮助用户 收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图5示出了WiFi模块170，但是可以理解的是，其并不属于终端500的必须构成，完全可以根据需要在不改变发明的本质的范围内而省略。
处理器180是终端500的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器120内的软件程序和/或模块，以及调用存储在存储器120内的数据，执行终端500的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器180可包括一个或多个处理核心；优选的，处理器180可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器180中。
终端500还包括给各个部件供电的电源190(比如电池)，优选的，电源可以通过电源管理系统与处理器180逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。电源190还可以包括一个或一个以上的直流或交流电源、再充电系统、电源故障检测电路、电源转换器或者逆变器、电源状态指示器等任意组件。
尽管未示出，终端500还可以包括摄像头、蓝牙模块等，在此不再赘述。具体在本实施例中，终端的显示单元是触摸屏显示器，终端还包括有存储器，以及一个或者一个以上的程序，其中一个或者一个以上程序存储于存储器中，且经配置以由一个或者一个以上处理器执行。所述一个或者一个以上程序包含用于执行如图1或图2所示实施例提供的建立数据连接的方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (11)

  1. 一种建立数据连接的方法，其特征在于，所述方法包括：
    接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
    提取所述目标应用标识；
    根据所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
    运行所述目标回调函数，将所述传输数据发送给所述目标应用。
  2. 根据权利要求1所述的方法，其特征在于，所述接收终端发送的数据包之前，所述方法还包括：
    接收本端应用发送的注册消息，所述注册消息携带应用标识和回调函数；
    将所述应用标识和所述回调函数对应存储至所述预设回调函数对应表中。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收终端发送的建立连接请求；
    建立与所述终端之间的数据连接。
  4. 根据权利要求3所述的方法，其特征在于，所述建立与所述终端之间的数据连接，包括：
    检测本端是否具备空闲端口；
    当本端具备空闲端口时，通过所述空闲端口与所述终端建立数据连接。
  5. 根据权利要求1所述的方法，其特征在于，所述接收终端发送的数据包包括：
    通过与所述终端建立的不同数据连接，接收所述终端发送的不同类型的数据包，数据包的类型由所述数据包的发送频率和数据包大小中至少一项确定。
  6. 一种建立数据连接的装置，其特征在于，所述装置包括：
    接收模块，用于接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
    提取模块，用于提取所述目标应用标识；
    确定模块，用于根据所述提取模块提取的所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
    运行模块，用于运行所述确定模块确定的所述目标回调函数，将所述传输数据发送给所述目标应用。
  7. 根据权利要求6所述的装置，其特征在于，所述接收模块还用于接收本端应用发送的注册消息，所述注册消息携带应用标识和回调函数；
    所述装置还包括：
    存储模块，用于将所述应用标识和所述回调函数对应存储至所述预设回调函数对应表中。
  8. 根据权利要求6所述的装置，其特征在于，所述接收模块还用于接收终端发送的建立连接请求；
    所述装置还包括：
    建立模块，用于建立与所述终端之间的数据连接。
  9. 根据权利要求8所述的装置，其特征在于，所述装置还包括：
    检测模块，用于检测本端是否具备空闲端口；
    所述建立模块还用于当所述检测模块确定本端具备空闲端口时，通过所述空闲端口与所述终端建立数据连接。
  10. 根据权利要求6所述的装置，其特征在于，所述接收模块还用于通过与所述终端建立的不同数据连接，接收所述终端发送的不同类型的数据包，数 据包的类型由所述数据包的发送频率和数据包大小中至少一项确定。
  11. 一种建立数据连接的装置，其特征在于，包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器用于：
    接收终端发送的数据包，所述数据包携带目标应用标识以及传输数据；
    提取所述目标应用标识；
    根据所述目标应用标识以及预设回调函数对应表，确定目标应用对应的目标回调函数，所述预设回调函数对应表包括应用标识以及对应的回调函数，其中，所述目标回调函数用于将所述传输数据发送至所述目标应用对应的数据存储地址；
    运行所述目标回调函数，将所述传输数据发送给所述目标应用。
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