CN101064910A - Call control based terminal-to-terminal breakpoint transmission method - Google Patents

Call control based terminal-to-terminal breakpoint transmission method Download PDF

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CN101064910A
CN101064910A CN 200610025993 CN200610025993A CN101064910A CN 101064910 A CN101064910 A CN 101064910A CN 200610025993 CN200610025993 CN 200610025993 CN 200610025993 A CN200610025993 A CN 200610025993A CN 101064910 A CN101064910 A CN 101064910A
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file
end
transmission
http
network
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CN101064910B (en
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顾青
陆蓓婷
靳胜勇
蒋文创
周卫红
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维豪信息技术有限公司
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Abstract

The invention discloses end-to-end break transferring method based on call control, on the TCP layer based on equal network transmission, the receiver loads the dynamic linking library, and it can realize the end-to-end break transferring via the interface of application program, the steps includes: first the transmitter initializes, starts the main line program of monitoring; when one starts transmitting files or one requires the other to transmit files, it enters the transmitting flow, after the transmitting-receiving sides make agreement, the transmitter starts to transmit file, and the transmitting-receiving sides record the start location and the length of file automatically, if one exit in the transmitting course, and then enters the breaking flow, and the breakpoint file is recorded on the log; next time one side requires the file transmission, then enter the anew transmitting flow, until the file is load completely. The invention solves the problems that scope of application of the break transferring function is single, it has extended scope, the break transferring method can be used in any communication mode in IP network to transmit data to solve the data break problems; it can search and negotiates the data source automatically.

Description

一种基于呼叫控制的端对端断点续传方法 The method of one kind of end-to-HTTP-based call control

技术领域 FIELD

本发明涉及一种计算机网络通信中数据传输中断处理方式,尤其涉及一种基于呼叫控制的端对端断点续传方法,属于网络通讯领域。 The present invention relates to a computer in a data transmission network communications interruption handling, in particular to a call control method for end-to-HTTP-based communications network it belongs.

背景技术 Background technique

在IP网络的数据传输中,当遇到网络质量差、接收数据方断开、提供数据方断开等情况时,会造成数据的中断,和已经传输的数据残缺不全,而当需要使用该数据时,必须重新传输新的文件,这样带来了用户使用的不方便、以及网络资源的浪费,因此,很多方案致力于解决此问题,提出了各种断点续传的方法,目前国内外所采用的技术主要有以下两种:一种是重点解决HTTP、FTP协议层上的数据中断问题:在IP网络的结构中,HTTP,FTP都是基于TCP协议之上的简单应用层传输协议,大部分的断点续传方案都是解决HTTP、FTP协议层上的数据中断问题,方案的产品也普遍应用于C/S模式,如网络蚂蚁数据下载的断点续传,该方案是一种采用C/S网络模式,使用过程中选择FTP或者HTTP协议进行数据下载的软件,通过多线程实时记录数据的断点,实现断点续传下载的软件 IP data transmission network, when the network experience poor quality, the receiving side the data is disconnected, the data providing party disconnects, etc., will result in interruption of data, and data transmission have been incomplete, when the required data , it must re-transmission of the new file, so bring inconvenience users, as well as waste of network resources, so many programs to address this problem, various methods of HTTP, is currently at home and abroad technology used mainly in the following two ways: one is to focus on resolving the HTTP, FTP protocol layer data on disruptions: the structure of an IP network, HTTP, FTP is based on the simple application layer protocol over TCP transport protocol, large HTTP is solved part program for HTTP, FTP protocol layers on the interruption program products are widely used in C / S mode, such as network ants HTTP data download, the program uses a C / S network mode, selected during FTP or HTTP protocol for data download software breakpoints multithreading real-time recording of data, software download resumability

该方案缺点主要在于在上层实现的断点续传功能,使得使用范围狭窄,同时数据源方必须固定,而传输速度也局限于数据源方的性能,无法灵活扩展;另一种是统一在TCP层解决数据传输中断问题,建立在自由对等网络基础上,通过种子等技术,实现发布数据、搜索数据、分解数据,在同一种子的数据分解的基础上同时使用记录接收方断点的方法实现对等传输中的断点续传问题;该技术的产品有BT等。 The main disadvantage is that in program resuming function of the upper layer to achieve such a narrow range, while the data source side to be fixed, and the transmission speed is limited to the performance of the data source side, can not be flexibly extended; the other is unified TCP layer method to solve the problem of data transmission is interrupted, built on the basis of free-peer network, through seeds and other technology, publishing data, search data, disaggregated data, use breakpoints while recording the recipient on the basis of the same seed data decomposition on implementation peer HTTP transmission problems; the technology products such as BT.

该方案的缺点在于完全的自由对等,没有信任与安全的控制,数据源的质量和版权得不到保障,同时发布数据、搜索数据带来版权问题、信息不对称问题,同时数据传输过程也不能由用户自行控制,如提示对方是谁、拒绝某用户传输、中断传输等;同时,因为发布、搜索和传输合为一体,需要单独制作种子来进行发布。 The disadvantage of this approach is that complete freedom on the other, there is no trust and security control, the quality of the data source and copyright can not be guaranteed, also released data, search data to bring copyright issues, information asymmetry, while the data transfer process is also not self-controlled by the user, such as suggesting the other side who refuse a user, interrupt and so on; at the same time as publishing, searching and transmission into one, need to make a separate seeds to be distributed.

目前市场上断点续传功能的方案都是解决C/S模式中的数据传输问题,不能使用于其他网络通信模式,尤其是对等网络中端对端的数据传输问题没有解决。 Currently on the market resuming function is to solve the problem of data transmission scheme C / S mode, can not be used for other network traffic patterns, in particular data transmission problems in the end-to-peer network is not resolved.

发明内容 SUMMARY

本发明的目的在于针对现有技术的不足,提出一种基于呼叫控制的端对端断点续传方法,通过动态链接库软件,提供系列接口完成断点续传功能,并可以依附于任何端软件,即任何在呼叫控制的对等网络中加载该动态链接库的端都可以使用断点续传功能,并可同时作为数据源方和数据接收方。 Object of the present invention is for the deficiencies of the prior art, to provide a method of end-to-HTTP-based call control, by Dynamic Link Library software, provides a series of HTTP functionality interface to complete, and can be attached to any side software, i.e. any end of the loading DLL can use HTTP functionality in the call control network, and the like, and at the same side as the data source and data receiver.

本发明的又一目的是提出一种基于呼叫控制的端对端断点续传方法,基于底层的TCP层提出的P2P(Peer to Peer,端对端传输或对等网络)数据的断点传输,适用于IP网络中的任何通信模式,自动搜索、协商数据来源,并实现了双向传输。 A further object of the present invention is to provide a method of end-to-HTTP-based call control breakpoint transmission based on TCP layer underlying P2P proposed (Peer to the Peer and the like, or to end transmission network) data for any mode of communication in an IP network, automatic search, negotiation sources of data, and enables bi-directional transmission.

本发明的目的是通过如下技术方案实现的,基于呼叫控制的端对端断点续传方法,在TCP层传输,包括收发双方都加载动态链接库,通过动态链接库中提供的应用程序接口来实现端对端的断点续传,动态链接库中包括,文件发送API(Application Programming Interface应用编程接口)、接收文件API、取消一次发送API、传输过程报告API和未发送完的文件重传API,至少包括如下步骤:首先发送方实现软件初始化,启动监听主线程;然后选择文件,进入发送流程,调用发送接口与接收方协商,协商成功后,发送方调用文件发送API来发送文件,接收方调用接收文件API来接收文件,收发双方调用传输过程报告API自动记录相应的文件开始位置和长度,如果在传输过程中一方退出,则进入传送中断流程,调用取消一次发送API,将断点文件记入日志;下次一方再次上线进行文件续 Object of the present invention are achieved by the following technical solutions, based on the HTTP-end call control method, the TCP transport layer, including sending and receiving sides are loaded dynamic link library, the application provided by the dynamic link library interface the HTTP end to end, comprising a dynamic link library, file sending API (application programming Interface application programming Interface), API receive files, send a cancel API, the file transfer process, and reports have not been transmitted API retransmission API, include at least the following steps: first, the sender implement software initialization, start listening main thread; then select the file, enter the sending process, the call to send the interface with the recipient negotiation after negotiation, the sender calls the file sending API to send the file, the recipient calls receiving the file API to receive files, send and receive both call report the file transmission start position and length of the API automatically recorded, if one exit during transmission, transmission interrupt process proceeds, a transmission cancel API call, the breakpoint documented in the log; on the line again next party files continued 询问,进入重新发送流程,调用未发送完的文件重传API,继续发送;若一方再次退出,再次进入中断流程,直至文件下载完成。 Inquiry into the re-sending process, call the file has not been transmitted retransmission API, continue to send; if the party quit again, re-entering interrupt the process until the file download is complete.

发送方和接收方全双工工作,可以作为另一传送过程的发送方和/或接收方。 Transmitting and receiving full duplex operation, as the sender can be transmitted to another process and / or receiver.

所述的重新发送流程,包括,续传时若接收方在线,发送方上线后,调用未发送完的文件重传API,获得用户号和断点文件列表,与接收方通信、协商成功后,继续传送。 The retransmission processes, including, if the recipient when the resume online, the sender to the line, call the file has not been transmitted retransmission the API, and obtains the user number break file list, the communication with the recipient, after a successful negotiation, continue transfer.

所述的动态链接库,还包括:信任网络登陆通知API,网络文件搜索API。 The dynamic link library, further comprising: a trusted network logon notification API, network file search API.

所述的重新发送流程,包括,续传时若接收方上线,将检查下载记录,通过呼叫控制进行将自动协商,同时调用网络文件搜索API查找其它可续传的信息点,继续发送。 Resending said process comprising, if the recipient when the resume line to check downloaded record, performs auto-negotiation through the call control, and network file search API call to find other information dot resume, continue to send.

所述的发送流程还包括:调用信任网络登陆通知API,提供在信任网络登陆的信息及信任网络的协议,包括H.323/SIP。 The sending process further comprising: a call to trust network logon notification API, provided in the trust agreement and the trust network login information network, including H.323 / SIP.

本发明提出的技术方案,其优点在于:1、本发明是基于TCP层提出的解决方案,因此解决了数据传输中断点续传功能的适用范围单一的问题,适用范围广,在IP网络中任何一种通信模式都可以使用断点续传的方式进行数据传输来解决数据中断问题。 Technical solution proposed by the invention, which is advantageous in that: 1, the present invention is based on the TCP layer solution proposed, thus solving the scope of a single function HTTP data transmission problems, wide application, in any IP network a communication mode can be used for HTTP way data transmission to solve data corruption problems.

2、本发明是基于对等网络的解决方案,因此也同时解决了断点续传下载的软件中,提供数据方位置固定,性能固定,数据源的质量和数据传输通道质量得不到有效保障的问题;可以自动搜索、自动协商数据来源;数据源和数据通道质量高;3、解决了目前断点续传软件中,数据源单一,造成数据传输速度存在性能瓶颈的问题;传输速度快;4、解决了目前的断点续传下载软件中,C/S模式的使数据传输只能是单向传输的问题。 2, the present invention is based on solution-peer network, and therefore also to solve the HTTP download software, there is provided a data side position fixing, fixing performance, quality and data transmission channel the quality of the data source is not effectively protected question; can automatically search, auto-negotiation data source; high quality data sources and data channels; 3, to solve the current HTTP software, a single data source, resulting in a performance bottleneck problem of data transmission speed; transmission speed; 4 to solve the current HTTP download software, making data transfer C / S mode can only be a question of a one-way transmission. 实现了双向传输,可以使一个端既是数据提供方,又是数据接收方;软件占用磁盘空间小,加载要求低,加载方便;5、本方案使用了呼叫控制,也即基于包交换的H.323、SIP等呼叫网络都可以使用,也就解决了对等网络中传输不可控制,数据源的质量和版权得不到保护的问题;提供同步日志记录,可完整查看整个传输过程;提供了呼叫控制的接口,在信任网络中使用更加安全,同时也提供了数据源质量和版权问题的解决方法;6、本发明使用字节级的断点记录方式,并且和发布、搜索环节分开实现,因此不需要单独制作种子;对任何格式数据有效,不需要单独制作种子;附图说明图1为基于传输控制的端对端断点续传方法的流程图;图2为发送文件的流程图;图3为中断一个发送过程的流程图;图4为发送方重发送一个文件的流程图;图5为接收方继续接收 Achieve bidirectional transmission, a terminal can make both a data provider, and a data receiver; software disk space occupied by a small, low load requirements, to facilitate loading; 5, the present embodiment uses the call control, i.e., based on packet switching H. 323, SIP calls and other network can use it to solve the network transmission can not control, the quality of the data source and copyright issues such as lack of protection; provide synchronous logging, you can view the entire transmission process complete; provides call control interface, using trust network more secure, but also provides mass data source copyright issues and solutions; 6, the present invention uses the byte-level breakpoint recording and publishing and searching links implemented separately, so do not require a separate seed; valid data in any format, do not require a separate seed; FIG. 1 is a method of end-to-HTTP-based transmission control flowchart; FIG. 2 is a flowchart of the transmission file; FIG. 3 is a flowchart of a transmission interrupt process; FIG. 4 is a flowchart showing a sender retransmission file; FIG. 5 is a receiver to continue to receive 流程图。 Flow chart.

具体实施方式 Detailed ways

以下结合附图详细描述本发明的技术方案。 Aspect of the present invention are described in detail below in conjunction with the accompanying drawings.

本发明目的公开一种基于呼叫控制的端对端的断点续传的方法,设计思想是,提供实现该方法的动态链接库,包括完成断点续传功能的系列接口,有文件发送API(Application Programming Interface应用编程接口)、接收文件API,取消一次发送API,传输过程报告API,未发送完的文件重传API,信任网络登陆通知API和网络文件搜索API等。 Object of the present invention discloses a HTTP-end call control based on the method design is to provide a method of implementing the dynamic link library, comprising complete HTTP serial interface function, has the file transmission API (Application programming Interface application programming Interface), to receive the file API, API canceled one transmission, the transmission process API report, the file is not finished sending retransmission API, trusted network logon notification API and network file search API and so on. 同时由于其形态是动态链接库,因此可以依附于任何端软件,即任何在呼叫控制的对等网络中加载该动态链接库的端都可以使用断点续传功能,并可同时作为数据源方和数据接收方。 Because of its form is a dynamic link library, can be attached to any client software, i.e. any end of the dynamic link library is loaded in a call control peer to peer network can use the HTTP functionality, and at the same side as the data source and a data receiver.

其基本原理为,提供初始化接口实现软件初始化,启动独立线程监听独立的端口号,该端口号可以动态配置,其后,提供了系列接口发送数据文件,该系列接口中提供用户在信任网络登录信息以及信任网络的协议,可支持H.323/SIP等,此时可在该信任网络中自动搜索所需文件,同时在接收文件时会通过接口提示加载方是否接收,由加载方调用接收文件接口进行接收,同时接收还提供了接收进度的提示接口,使数据传输的进度可见,此时发送接收双方都会自动记录相应传输点,如此时软件退出,则传输中断,双方自动将传输点记录,下次用户启动软件再进行初始化时,将进行文件的续传询问,得到确认后,软件通过呼叫控制进行将自动协商,同时查找其它可续传的信息点,达到多点传输的目的;该过程简洁自动,接口清晰明了,使用方便,完整解决了 The basic principle is to provide initialization interface software initialization, start a separate thread listens independent port number, the port number can be dynamically configured, and thereafter, the series provides an interface to send data files, the series provides the user interface to log in trust network information and a trust network protocols, supports H.323 / SIP, etc., then you can automatically search for the file in the trust network, whether received through the interface will also prompt to load side at the time of receiving the file, receive the file to load the interface called by the parties receive progress while receiving also provides tips to receive progress interface for data transmission of visible, this time sending and receiving sides will automatically record the corresponding transmission point, so when the software exits, the transmission is interrupted, the two sides will automatically transfer point record, under times users start the software re-initialized, will resume the inquiry file, after confirmation, the software will automatically negotiate through the call control, and look for other resume information point, the purpose of multi-point transmission; the process is simple Auto, the interface clear, easy to use, complete solution for the 对端的数据传输的中断问题。 Peer data transmission outages.

图1为基于传输控制的端对端断点续传方法的流程图,开始,发送方进行软件初始化,启动监听的主线程;发送方和接收方通信并协商,协商好后进入发送流程,发送方与接收方协商,协商成功后,发送方调用文件发送API来发送文件,接收方调用接收文件API来接收文件,收发双方调用传输过程报告API自动记录相应的文件开始位置和长度,如果在传输过程中一方退出,则进入传送中断流程,调用取消一次发送API,将断点文件记入日志;下次一方再次上线进行文件续传询问,进入重新发送流程,调用文件重传API,继续发送;若一方再次退出,再次进入中断流程,直至文件下载完成,发送方记录发送成功日志,接收方记录接收成功日志。 FIG 1 is a flowchart of a method of resuming breakpoint end-based transmission control starts, the sender software initialization, the main thread start listening; sender and recipient communication and negotiation, the negotiation process well into the transmission, transmission and the receiver negotiate, the negotiation is successful, the sender calls the file transmission API to send a file, the receiving party calls received file API to receive files, send and receive start position and length of the file both call transfer procedure reported API automatically record Accordingly, if the transmission party quit the process, the flow into the transfer is interrupted, a call to cancel sending API, will file a breakpoint logging; the one on the line again next time for file resuming inquiry into the re-sending process, call the file retransmission API, continue to send; If the Party should denounce once again, re-entering interrupt the process until the file download is complete, the sender sent successfully log records, the recipient receives a successful record log.

发送方和接收方全双工方式工作,可以作为另一传送过程的发送方和/或接收方。 Transmitting and receiving a full duplex mode of work, as a further transfer process of a sender and / or recipient. 本发明是基于对等网络提供的方案,该方案中的断点续传支持双向传输,即使用软件者可以同时接收和发送。 The present invention is based on the scheme provided by the network, etc., the HTTP scheme supports bidirectional transmission, i.e. the use of the software may receive and transmit simultaneously.

图2为发送文件的一般流程,发送方进行软件初始化,启动监听的主线程,监听线程接收一个连接后根据消息类型(获得文件信息、发送文件数据、发送新文件、重新发送文件),并处理这消息类型;发送方调用文件发送API来发送文件,收发双方调用传输过程报告API自动记录相应的文件开始位置和长度,发送从开始位置到指定长度的文件,数据发送完成后,发送方记录发送成功日志,接收方记录接收成功日志;然后发送方和接收方都在线继续监听下次的收发。 FIG 2 is a general flow sent file, the sender of software initialization, the master thread listening, listening thread receives a connecting post in accordance with the message type (obtain file information, send file data, send a new file, sending the document), and the processing this type of message; transmitting party calls the file sending API to send documents, send and receive start position and length of the file both call transfer procedure reported API automatically record the corresponding transmitted file from the start position to the specified length, after the data transmission is completed, the sender record transmission successful log, recording the recipient receives a successful log; then the sender and recipient are online continue to monitor the next transceiver.

如果发送方在发送文件过程中异常退出,或接收方在接收文件过程中异常退出,则进入中断一个发送文件的过程,图3为中断一个发送过程的流程图,要中断传送的一方调用取消一次发送API,另一方发送或接收文件失败,发送方将文件发送状态写入日志,接收方将文件接收状态写入日志;然后退出。 If the sender to send the file exit exception process, or the recipient receives the file abnormal exit process, the process proceeds to send a file of the interrupt process, the interrupt FIG. 3 is a flowchart of a process of transmitting, to one of the interrupt call canceling a transmission time sending the API, receive files or other transmission fails, the sender will send a status written to the log file, the recipient receiving state written to the log file; then exits.

图4为发送方重发送一个文件的流程图。 FIG 4 is a flowchart showing a sender retransmission file. 中断后如果接收方在线,发送方再次上线后,发送方调用未发送完的文件重传API,获得用户号SipNo.和断点文件列表IpList,与接收方通信、协商成功后,继续传送。 If the receiver line, the sender on the line again after the break, call the sender is not sending the file retransmission API, obtain user number SipNo. And the list IpList, to communicate with the party receiving the breakpoint file, after negotiation, to continue the transfer.

图5为接收方继续接收的流程图。 FIG 5 is a flowchart of the receiver continues to receive. 中断后如果发送方在线,接收方上线想续传文件,接收方将检查下载记录日志,通过呼叫控制进行自动协商,同时调用网络文件搜索API查找可续传的信息点,继续发送。 If the sender interrupt line, the receiving party line want to resume file, the recipient will check the download logs, auto-negotiation by call control, and network file search API call to find information point can resume, and continue to send. 此时的发送站点不仅限于原来给接收方传送文件的发送站点,可以是网络中其他拥有该文件并开机的站点。 At this time, the transmission station is not limited to the original sending station to the receiving file transfer, the network may have the other file and boot site.

本发明通过解决底层对等网络中的数据断点传输问题,解决了普通IP网络上的任何的端对端的数据传输的中断问题,而由于C/S通信模式是对等网络的一种特殊的表现形式,因而本发明也同时适用于C/S通信模式中。 The present invention to solve the underlying problem of data transmission break peer to peer network to solve the problem of interrupting data transmission end to end on any common IP network, and since one kind of C / S communication mode is the special peer network forms, and the present invention is also applicable to the C / S communication mode.

本发明依据呼叫控制提供数据源搜索,保证了有效的数据源,同时通过呼叫控制进行会话协商也解决了数据传输通道质量问题;本发明可同时协商多个数据源进行数据传输,不但传输速度成倍增加,同时也不存在传输速度的瓶颈问题。 The present invention provides a call control according to the data source searched to ensure valid data source, session negotiation simultaneously solved also through the call control data transmission channel quality; the present invention can be negotiated simultaneously a plurality of data sources for data transmission, only the transmission speed to fold increase, while there is no bottleneck transmission speed.

最后所应说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的精神和范围,其均应涵盖在本发明的权利要求范围当中。 Finally, it should be noted that the above embodiments are intended to illustrate and not limit the present invention, although the present invention has been described in detail with reference to preferred embodiments, those of ordinary skill in the art should be understood that the techniques of the present invention program modifications or equivalent replacements without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the present invention as claimed in which the required range.

Claims (6)

1.一种基于呼叫控制的端对端断点续传方法,在TCP层基于对等网络传输,其特征在于:提供动态链接库,包括,文件发送应用程序接口、接收文件应用程序接口,取消一次发送应用程序接口,传输过程报告应用程序接口,未发送完的文件重传应用程序接口,发送方和接收方都加载动态链接库,通过所述的动态链接库中提供的应用程序接口来实现端对端的断点续传,至少还包括如下步骤:首先所述的发送方进行软件初始化,启动监听主线程;然后进入发送流程,发送方与接收方协商,协商成功后,发送方调用文件发送应用程序接口来发送文件,接收方调用接收文件应用程序接口来接收文件,收发双方调用传输过程报告应用程序接口自动记录相应的文件开始位置和长度,如果在传输过程中一方退出,则进入传送中断流程,调用取消一次发送应用程序接 An HTTP-end call control method based on the TCP transport layer is based on the peer network, comprising: providing a dynamic link library, including, file sending application programming interface, application programming interface receives the file, cancel a transmission application program interface, application program interface reports the transmission process, not after sending the retransmission file application program interface, the sender and receiver are loaded dynamic link library, the application provided by the dynamic link library interface to achieve HTTP end to end, at least further comprising the step of: transmitting said first party software initialization, the main thread start listening; then transmitted into the process, the sender and the receiver negotiate, the negotiation is successful, the sender transmits the calling file application program interface to send a file, the receiving party calls received file application program interface to receive files, send and receive both call transmission reporting application program interface automatically records the corresponding file start position and length, if during transmission one exit, proceeds transmission interrupt process, a call to cancel the sending application access 将断点文件记入日志;下次一方再次上线进行文件续传询问,进入重新发送流程,调用未发送完的文件重传应用程序接口,继续发送;若一方再次退出,再次进入所述的传送中断流程,直至文件下载完成。 Breakpoint logging file; the next one on the line again resume inquiry files, into the resend process, the retransmission file to call an application programming interface incompletely transmitted, continue transmission; if one exits again, re-enter the transfer interrupt the process until the file download is complete.
2.根据权利要求1的基于呼叫控制的端对端断点续传方法,其特征在于,所述的重新发送流程,包括,续传时若接收方在线,发送方上线后,调用未发送完的文件重传应用程序接口,获得用户号和断点文件列表,与接收方通信、协商成功后,继续传送。 2. The method of claim end-HTTP-based call control, wherein one of said retransmission processes, including, if the recipient when the resume line, on the line to the sender, sending the call was file retransmission application program interface, access to user numbers and break the file list, and the recipient communication, negotiation is successful, continue to send.
3.根据权利要求1的基于呼叫控制的端对端断点续传方法,其特征在于,所述的动态链接库,还包括:网络文件搜索应用程序接口;所述的重新发送流程,还包括,若接收方上线想续传文件,接收方将检查下载记录日志,通过呼叫控制进行自动协商,同时调用网络文件搜索应用程序接口查找可续传的信息点,继续发送。 3. The method of claim end-HTTP-based call control, wherein one of said dynamic link library, further comprising: a network file search application program interface; re-sending process, further comprising If the receiving party line want to resume file, the recipient will check the download logs, auto-negotiation by call control, and call the network file search application program interface to find information point can resume, and continue to send.
4.根据权利要求1或2或3的基于呼叫控制的端对端断点续传方法,其特征在于,所述的动态链接库,还包括:信任网络登陆通知应用程序接口,所述的发送流程还包括:所述的发送方和接收方调用信任网络登陆通知应用程序接口,提供在信任网络登陆的信息及信任网络的协议,包括H.323和SIP。 End to end according to claim HTTP-based call control method, wherein 1 or 2 or 3, the dynamic link library, further comprising: a trusted network notifies the application program interface, the sending login the process further comprising: a sender and receiver trust network party calls the login notification application interface that provides a network protocol in the trusted login information and trust network, including H.323 and SIP.
5.根据权利要求1或2或3的基于呼叫控制的端对端断点续传方法,其特征在于,所述的监听主线程,还包括获得所述的接收方的信息类型(文件信息、发送文件数据、发送新文件、重新发送文件),并处理这个信息类型。 The 1, 2 or 3 of the end-to-HTTP-based call control method, wherein said main thread monitor, further comprising obtaining information of the type of recipient (file information claim, to send the file data, sending new files, re-send the file), and to deal with this type of information.
6.根据权利要求1或2或3的基于呼叫控制的端对端断点续传方法,其特征在于,所述的发送方和所述的接收方全双工工作,可以作为另一个或几个传送过程的发送方和/或接收方。 The 1 or 2 or 3-end HTTP-based call control method, characterized in that the sender and recipient of the full-duplex operation, can be transmitted as one or more other claims sender and / or receiver process.
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