WO2016070720A1

WO2016070720A1 - Method and apparatus for downloading file, computing device and non-transitory machine readable storage medium

Info

Publication number: WO2016070720A1
Application number: PCT/CN2015/092606
Authority: WO
Inventors: 梁捷; 邓志斌
Original assignee: 广州市动景计算机科技有限公司
Priority date: 2014-11-03
Filing date: 2015-10-23
Publication date: 2016-05-12
Also published as: CN105635217A; CN105635217B

Abstract

Disclosed in the present invention are a method and an apparatus for downloading files, a computing device and a non-transitory machine readable storage medium, the file is composed of multiple file blocks with a fixed size, and the method includes: obtaining the current network speed of a network; determining, according to the current network speed, the size of a file segment that is suitable for being downloaded through one link currently, and the file segment includes at least one file block; and initiating a new link for downloading the file segment to download the file. By the above manner, the present invention can make use of network bandwidth reasonably and improve the efficiency of file downloading effectively.

Description

File downloading method and device, computing device and non-transitory machine readable storage medium

Technical field

The present invention relates to the field of file downloading technologies, and in particular, to a file downloading method and apparatus, a computing device, and a non-transitory machine readable storage medium.

Background technique

At present, there are only two ways to download files, one is non-breakpoint continuous transmission, and the other is a resume. The breakpoint continuous transmission mode can effectively avoid repeated downloads, make full use of bandwidth, and effectively improve the download speed. Therefore, the breakpoint resume transmission mode is widely used.

In the download mode of the resume of the breakpoint, the file is divided into a number of fixed-size file blocks. On the mobile platform, the traditional breakpoint download mechanism is to download only one fixed-size block per request. In the normal download, the process is: establish 3 connection requests for the first 3 blocks, and download one of the blocks. After the completion, the connection request of the fourth block is established, and so on, until all the blocks are downloaded, and the entire download task is completed.

The download process of each block generally includes five steps of scheduling start downloading, initializing the network, sending a request, receiving data, and scheduling to complete the download. In the case that the network speed is not very high, the steps of receiving data consume more time, other steps consume less time (not related to network speed, generally can be regarded as a fixed value), and the time required to receive data is The ratio of time required for other steps is larger. Since the step of receiving data is actually performing the downloading action, the larger the ratio, the higher the downloading efficiency.

However, in a high-speed network environment, the process of receiving data is greatly reduced in time for a block download process (it may be reduced to be time-consuming equivalent to other steps, or even less than other steps). The ratio of the time required to receive the data to the time required for the other steps is greatly reduced, resulting in a decrease in download efficiency.

For example, in the case of a low network speed, for each block download process, the step of receiving data may take 5 s, the other steps take a total of 100 ms, the ratio of the two is 50:1, the actual download time The ratio of the time to perform other steps is large, and the download efficiency at this time Higher. When the network speed is increased to a high network environment, the step of receiving data will be reduced to 1 s or even shorter for each block download process. In this case, the time consumption of other steps is basically the same (100ms). ), the ratio of the time when the actual download is performed to the time when the other steps are performed is only 10:1, that is, in the download process of each block, there is nearly ten minutes in the download preparation stage, so that the network speed cannot be fully utilized. , resulting in reduced download efficiency.

In summary, the traditional breakpoint download method is faster when the network speed is close to or larger than the fixed block size, the actual download efficiency is reduced, and the download speed cannot reach the maximum network speed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method and device for downloading files, a computing device, and a non-transitory machine-readable storage medium, which can reasonably utilize network bandwidth and effectively improve downloading efficiency.

In order to solve the above technical problem, the embodiment of the present invention discloses the following technical solutions:

According to an aspect of the present invention, a file downloading method is provided. The file is composed of a plurality of fixed-size files, the method includes: acquiring a current network speed of the network; determining, according to the current network speed of the network, The size of the downloaded file fragment is connected, the file fragment includes at least one file partition; a new connection for downloading one of the file fragments is initiated to download the file.

Preferably, the step of determining the size of the file segment currently suitable for downloading by one connection according to the current network speed of the network may include: determining, according to the current network speed of the network, a file partition currently suitable for downloading by one connection. Number; determines the size of the file fragment based on the number of file partitions and the size of each file partition.

Preferably, the size of the file fragment may be the number of file partitions multiplied by the size of each file partition, wherein the size of each file partition may be equal.

Preferably, the number of blocks currently suitable for being blocked by a downloaded file can be obtained by the following formula:

And

Where n is the coefficient, and the current network speed refers to the amount of data that the network can currently transmit per second.

Preferably, the method may further include: after the step of initiating a new connection for downloading a file segment to download the file, determining whether the number of connections currently connected for downloading the file reaches a preset upper limit value; If so, wait for the current connection download to complete; if not, return to the step of determining the size of the file segment currently suitable for download by a connection based on the current network speed of the network.

Preferably, the method may further include: after the current connection download is completed, determining whether all file partitioning of the file is completed; if no download is completed, returning according to the current network speed of the network, determining that the current configuration is suitable for being connected by a connection. The step of downloading the size of the file fragment; if the download is complete, the download of the file is ended.

Preferably, the method may further include: when starting the downloading, initiating a first connection for downloading a file partition to download the file, and acquiring the current network speed of the network comprises: determining, according to the download process of the first connection The current network speed of the network.

Preferably, the method may further include: determining, according to the message returned in the download process of the first connection, whether to support the resume of the breakpoint, wherein, in the case of supporting the resume of the breakpoint, performing the current network speed of acquiring the network A step of.

Preferably, the step of obtaining the current network speed of the network comprises: determining the current network speed of the network according to the download process of the connection just completed downloading during the downloading process.

According to another aspect of the present invention, a file downloading apparatus is provided. The file is composed of a plurality of fixed-size files, and the device includes: an obtaining module, configured to acquire a current network speed of the network; and a determining module, configured to The current network speed, determining the size of the file segment currently suitable for downloading by a connection, the file segment including at least one file partition; a download module for initiating a new connection for downloading a file segment to download Document.

Preferably, the determining module may include: a first determining module, configured to determine, according to a current network speed of the network, a number of the file partitions currently suitable for downloading by one connection; and a second determining module, configured to The number of chunks and the size of each file chunk determine the size of the file fragment.

Preferably, the size of the file partition may be the number of file partitions multiplied by the size of each file partition, wherein each file partition is equal in size.

Wherein, the number of files currently suitable for downloading by one connection can be determined by the following formula obtain:

And

Preferably, the device may further include: a first determining module, configured to determine, after the downloading module initiates a new connection for downloading a file segment to download the file, whether the number of connections currently connected for downloading the file is reached The upper limit is preset; if it is reached, the current connection download in the download module is completed; if not, the determination module is returned.

Preferably, the device may further include: a second determining module, configured to determine whether all file partitioning of the file is completed after the current connection downloading in the downloading module is completed; if the downloading is not completed, returning to the determining module; if the downloading is completed , then download the module to end the download of the file.

Preferably, the device may further include: a first block downloading module, configured to initiate a first connection for downloading a file block to download a file, and the obtaining module downloads the module according to the first block downloading module when starting the downloading The process determines the current network speed of the network.

Preferably, the device may further include: a third determining module, determining, according to the message returned during the downloading process of the first block downloading module, whether to support the resume of the breakpoint, wherein, in the case of supporting the resume of the breakpoint, Perform the steps to get the current network speed of the network.

Preferably, during the downloading process, the obtaining module may determine the current network speed of the network according to the downloading process of the connection that just completed the download.

According to another aspect of the present invention, there is provided a non-transitory machine readable storage medium having stored thereon executable code for causing a processor to perform a method according to the present invention when executable code is executed by a processor.

According to another aspect of the present invention, there is provided a computing device capable of downloading a file, the file consisting of a plurality of fixed-size file blocks, the computing device comprising: a memory; a network communication module for connecting to the network; Connected to the network communication module and the memory, used to obtain the current network speed of the network through the network communication module, determine the size of the file segment currently suitable for downloading by a connection according to the current network speed of the network, and initiate a download for downloading A new connection of the file fragment to download the file via a network communication module and save the downloaded file fragment on a memory, the file fragment including at least one file partition.

The method and device for downloading a file provided by the embodiment of the present invention can be seen by the above technical solutions. Obtain the current network speed of the network, and determine the size of the file segment currently suitable for downloading by one connection according to the current network speed of the network, and initiate a new connection to download the file for the download task target by the size of the file segment. In this way, the number of file partitions that can be connected and downloaded can be dynamically allocated, thereby rationally utilizing network bandwidth and effectively improving download efficiency.

DRAWINGS

The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the embodiments of the invention. The same parts.

1 is a flow chart showing an embodiment of a file downloading method according to the present invention;

2 is a schematic flow chart of sub-steps that can be included in step S120 shown in FIG. 1;

3 is a schematic flow chart of another embodiment of a file downloading method according to the present invention;

4 is a first flow chart of a file downloading method in a specific downloading task according to the present invention;

Figure 5 is a second flow chart of a file downloading method in a specific downloading task according to the present invention;

6 is a third flowchart of a file downloading method in a specific downloading task according to the present invention;

7 is a fourth flow chart of a file downloading method in a specific downloading task according to the present invention;

Figure 8 is a fifth flow chart of a file downloading method in a specific downloading task according to the present invention;

9 is a sixth flowchart of a file downloading method in a specific downloading task according to the present invention;

10 is a seventh flowchart of a file downloading method in a specific downloading task according to the present invention;

11 is a schematic structural diagram of an embodiment of a file downloading apparatus according to the present invention;

12 is a schematic structural diagram of an optional unit that can be included in the determining module shown in FIG. 11;

FIG. 13 is a schematic structural diagram of another embodiment of a file downloading apparatus according to the present invention; FIG.

14 is a block diagram showing an embodiment of a computing device capable of downloading files in accordance with the present invention.

detailed description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiment of the present invention has been shown in the drawings, it is understood that Rather, these embodiments are provided so that this disclosure will be thorough and complete, and the scope of the disclosure can be Technical staff.

The invention will now be described in detail in conjunction with the drawings and embodiments.

Referring to FIG. 1, FIG. 1 is a schematic flowchart of an embodiment of a file downloading method according to the present invention, wherein a file is composed of a plurality of fixed-size file blocks, for example, a file of 25600 KB in size and divided into 100 files. Blocking, each file is 256KB in size.

As shown in FIG. 1, in step S110, the current network speed of the network is acquired.

Network speed, that is, network speed, generally refers to the length of time it takes to request and return data when uploading and downloading data when a computer or mobile phone is online. The way to obtain the current network speed of the network may be calculated by dividing the sum of the data processed by the network over a period of time by the length of the time period. In the calculation formula below, the current network speed can be expressed in terms of the amount of data that the network can currently transmit per second.

In step S120, the size of the file segment currently suitable for downloading by one connection is determined according to the current network speed of the network, and the file segment includes at least one file partition.

The size of the file segment depends on the current network speed. The determined file segment may include multiple file segments (when the network speed is high), or may be a file block (the network speed is low). under).

At step S130, a new connection for downloading a file segment is initiated to download the file.

At this point, to determine the size of a good file fragment to initiate a new connection to download the file for a single connected download task target, instead of always launching a new connection to download the file for a single connected download task target in the size of a single file chunk. In this way, the network bandwidth can be reasonably utilized, and the download speed can be effectively improved.

In summary, the present invention proposes a method for improving download efficiency by performing optimization in the process without changing the block division. That is to say, the size of the file downloaded by each connection is not fixed to a block, but a file segment composed of multiple consecutive blocks can be dynamically allocated through actual network conditions such as network speed and network type, and the file segment is handed over to the file segment. A connection download to improve download efficiency. In this way, without changing the block division, in case of an abnormal situation (such as a download error), the program can be simplified by directly discarding and re-downloading the block. The division of the block should not be too large, otherwise the cost of abandonment will be too high, but it should not be too small, because it will increase the overhead of scheduling, generally use the same block size as the traditional breakpoint download. And this kind of downloading method is essentially continuous downloading, with the upper layer scheduling and Appropriate caching can ensure that the file is still continuously written to the file, which can effectively alleviate the efficiency problem caused by the inefficient file IO of the mobile device.

FIG. 2 is a schematic flow chart of sub-steps that can be included in step S120 shown in FIG. 1.

In step S1210, based on the current network speed of the network, the number of file partitions currently suitable for downloading by one connection is determined.

If the current network speed of the network is close to or larger than the size of a single file partition, the number of file partitions that the current network is suitable for downloading and downloading may be more than one, if the current network speed of the network is far less than or equal to a single file partition. The size, the number of files that the current network is suitable for connection to download should be one. The number of file partitions that the current network is suitable for downloading and downloading may be determined according to the current network speed of the network being a multiple of the size of a single file partition, or may be based on measurement experiments to obtain an empirical rule, and determining the current network according to an empirical rule. The number of blocks that are connected to the downloaded file, or can be determined by other methods. According to the current network speed of the network, dynamically allocate the number of files that the network can currently connect to download, thereby rationally utilizing the network bandwidth and effectively improving the download speed. For example, the current network speed of the network is 256 KB, and the size of each file partition is 256 KB, and the number of file partitions that the current network is suitable for downloading and downloading may be one.

In step S1210, based on the number of file partitions and the size of each file partition, the size of the file segment that the network is currently suitable for connection to download is determined.

In the case where the number of file partitions and the size of each file partition are known, the size of the file segment that the network is currently suitable for connection to download can be determined.

The size of the file segment currently suitable for connection and downloading by the network is the number of file partitions multiplied by the size of each file chunk, wherein each file chunk is equal in size. For example, the determined number of file partitions is four, and the size of each file partition is 256 KB, and the total file fragment currently suitable for connection downloading by the network is 1024 KB.

As can be seen from the above, the embodiment of the present invention determines the number of file partitions that the network can currently connect to and download according to the current network speed of the network, and according to the number of file partitions and each file. The size of the block determines the size of the file segment that the network is currently suitable for connection to download; initiates a new connection to download the file for the download task target of a single connection with the size of the file fragment. According to the current network speed of the network, determine the number of file partitions that the network is currently suitable for connecting to download, thereby determining to initiate a new connection to download the file for the download task target of the single connection by the size of the file fragment currently connected to the network. In this way, it is possible to dynamically allocate the current connection. The number of downloaded files is divided into blocks, so that the network bandwidth can be reasonably utilized, and the download speed can be effectively improved.

Referring to FIG. 3, FIG. 3 is a schematic flowchart of another embodiment of a file downloading method according to the present invention. The embodiment is basically the same as the embodiment of FIG. 1. For the similarities, please refer to FIG. 1 and corresponding text descriptions.

As shown in FIG. 3, in step S210, a first connection for downloading a file partition is initiated to download a file. The download task of the first connection is targeted to a file partition.

In step S220, the download process is monitored, and when the download is completed, the current network speed of the network is acquired.

The functions of step S210 and step S220 are mainly for obtaining the current accurate and real-time network speed of the network. In addition, when the first connection is initiated to download the file by the size of a file block, the report may also be returned according to the returned report. The text determines whether the current download supports the resume of the breakpoint (ie, step S215 in the figure), and if it is determined that the current download does not support the resume of the breakpoint, the first connection download file can be kept until the completion (ie, step S217 in the figure), Embodiments of the invention are implemented with support for breakpoint retransmission.

In step S230, based on the current network speed of the network, the number of files that are currently suitable for downloading by one connection is determined.

The number of file partitions that the network is currently suitable for connection to download is obtained by the following formula:

And

n is the coefficient, and the current network speed refers to the amount of data that the network can currently transmit per second.

The current network speed can be updated in real time, and the impact of network fluctuations caused by network fluctuations should be removed in order to reflect the most realistic current network speed. The coefficient n varies depending on the size of the file block block, and only

It only makes sense. The value of the specific coefficient n can be obtained through a large number of experimental tests according to the block size and the network condition of the service area, and the coefficient n can also be an empirical value obtained according to the actual measurement.

In step S240, the size of the file segment currently suitable for download by one connection is determined according to the number of file partitions and the size of each file partition.

At step S250, a new connection for downloading a file segment is initiated to download the file.

In step S260, it is determined whether the number of connections of the connection for downloading the file that has been currently initiated reaches a preset upper limit value. If yes, go to step S270; if not, go back to step S230.

At step S270, it waits for the current connection download to be completed.

It is determined whether the number of connections that have been initiated for downloading a file has reached a preset upper limit value, so as to prevent excessive connection from being initiated in parallel, thereby reducing download efficiency.

In step S280, it is judged whether all the file partitioning of the file is completed; if no download is completed, the process returns to step S230; if the download is completed, the process proceeds to step S290.

At step S290, the download of the file is ended.

It should be noted that step S260 and step S280 have no obvious sequence when executed. In addition, before returning to step S230 after step S260 and step S280, the network speed may be reacquired in step S285.

At step S285, the current network speed of the network can be determined based on the download process of the connection that just completed the download. Thus, in step S230, the next operation can be performed according to the new current network speed acquired in step S285. As a result, the network speed can be monitored at any time, so that the size of the file segments downloaded by a single connection can be updated at any time.

In this implementation manner, obtaining the current network speed of the network; determining, according to the current network speed of the network, the number of file partitions that the network is currently suitable for connection to download; according to the number of file partitions and each file partitioning Size, determines the size of the file segment that the network is currently suitable for connection to download; initiates a new connection to download the file for the download task target for a single connection with the size of the file fragment. Since the number of file partitions that the network is currently suitable for connecting to the download is determined according to the current network speed of the network, it is determined that a new connection is initiated to download the file for the download task target of the single connection by the size of the file segment currently suitable for the connection to be downloaded. In this way, the number of file partitions currently suitable for connection downloading can be dynamically allocated, thereby rationally utilizing network bandwidth and effectively increasing the download speed.

In the following, the download task (shown in FIG. 4) of a file divided into 32 blocks is taken as an example to illustrate the method of the present invention. The task supports breakpoint continuous transmission, and the concurrent connection preset upper limit value is 3, and the coefficient n is 5. The following details the entire download process:

The first step: thread 1 initiates a connection, requesting to download the first file partition, see the 1 part of Figure 5.

Step 2: After the thread 1 is downloaded, if the current network speed of the acquired network is 1×block size, according to the following formula:

And

After substituting the numerical calculation, it is obtained that the number of files that can be connected and downloaded by the network is 6;

According to the formula: block size × block number,

After the numerical calculation is performed, the total file partition (ie, the file fragment) of the new connection request is 6×block size, and the new connection request is initiated for the download task target. The file part of the specific request is as shown in FIG. 6-2. 7 parts.

The third step: According to the foregoing steps, it can be known that only thread 1 is in the download state, and the set concurrent connection upper limit value is 3, and the concurrent connection upper limit value has not been reached, so thread 2 and thread 3 are continuously started, corresponding to the request. The file parts are as shown in parts 8-13 of Figure 7, as shown in parts 14-19 of Figure 8.

Step 4: After the thread 1 is downloaded again, if the network speed at this time is 2×block size, according to the foregoing calculation method, a new connection can be obtained by taking 11 consecutive blocks, and the file part corresponding to the request is as shown in FIG. Section 20-30.

Step 5: When the thread 2 is downloaded, if the network speed is still 2×block size, but there are less than 11 blocks not downloaded. Therefore, the last remaining blocks are taken to start a new connection, and the corresponding file portion of the request is as shown in parts 31-32 of FIG.

Step 6: When the thread 3 is downloaded, it is found that there is no block to download, so it can be closed directly.

Step 7: After the remaining threads are downloaded, the download task is completed.

Through the above example, it can be seen that the number of request connections is reduced from the original 32 times to 6 times, which significantly improves the download efficiency under the high speed network. With a certain cache, it can also ensure that file writes are continuous writes to optimize file IO scheduling.

Referring to FIG. 11, FIG. 11 is a schematic structural diagram of an embodiment of a file downloading apparatus according to the present invention. The apparatus of the present embodiment can perform the steps in the method shown in FIG. The device includes an acquisition module 110, a determination module 120, and a download module 130.

The obtaining module 110 is configured to acquire the current network speed of the network.

Network speed, that is, network speed, generally refers to the length of time it takes to request and return data when uploading and downloading data when a computer or mobile phone is online. The way to obtain the current network speed of the network may be calculated by dividing the sum of the data processed by the network over a period of time by the length of the time period. In the calculation formula of the present disclosure, the current network speed can be expressed in terms of the amount of data that the network can currently transmit per second.

The determining module 120 is configured to determine, according to the current network speed of the network, a size of a file segment currently suitable for downloading by a connection, wherein the file segment includes at least one file partition.

The download module 130 is for initiating a new connection for downloading a file fragment to download the file.

At this point, a new connection is initiated to download the file for the download task target of a single connection with the size of the file fragment, instead of always starting a new connection to download the file for the download task target of a single connection in the size of a single file chunk. The way, the network bandwidth can be reasonably utilized, and the download speed can be effectively improved.

FIG. 12 is a schematic structural diagram of an optional unit that the determination module shown in FIG. 11 can include.

As shown in FIG. 12, the determination module 120 can optionally include a first determination module 1210 and a second determination module 1220.

The first determining module 1210 is configured to determine, according to the current network speed of the network, the number of file partitions currently suitable for downloading by one connection.

A file consists of multiple files of fixed size. For example, a 25600KB file is divided into 100 file partitions, each of which is 256KB in size.

If the current network speed of the network is close to or larger than the size of a single file partition, the number of files that the current network is suitable for downloading by one connection may be more than one, if the current network speed of the network is far less than or equal to a single file. The size of the block, the number of files that the current network is suitable for downloading by one connection should be one. The number of files that the current network is suitable for downloading by one connection can be determined according to the current network speed of the network is a multiple of the size of a single file block; or the experience rule can be obtained according to the measurement test, and the current network is determined according to the empirical rule. The number of files that can be connected to the downloaded file, or other methods. According to the current network speed of the network, dynamically allocate the number of files that the network can currently connect to download, thereby rationally utilizing the network bandwidth and effectively improving the download speed.

The second determining module 1220 is configured to determine, according to the number of file partitions and the size of each file partition, the size of the file segment that the network is currently suitable for connection to download.

In the case where the number of file partitions and the size of each file partition are known, the size of the file partition that the network is currently suitable for connection to download can be determined.

The size of the file segment currently suitable for connection and downloading by the network is the number of file partitions multiplied by the size of each file chunk, wherein each file chunk is equal in size.

In this implementation manner, obtaining the current network speed of the network; determining, according to the current network speed of the network, the number of file partitions that the network is currently suitable for connection to download; according to the number of file partitions and each file partitioning Size, determine the size of the total file partition that the network is currently suitable for connection downloading; A new connection is initiated for the download task target to download the file at the size of the total file chunk. According to the current network speed of the network, determine the number of file partitions that the network can currently connect to download, thereby determining to initiate a new connection to download the file for the download task target by the size of the total file partition currently downloaded and connected by the network. In this way, the number of files that can be connected and downloaded can be dynamically allocated, so that the network bandwidth can be reasonably utilized, and the download speed can be effectively improved.

Referring to FIG. 13, FIG. 13 is a schematic structural diagram of another embodiment of a file downloading apparatus according to the present invention. The apparatus of this embodiment may perform the steps in the method shown in FIG. The device of the present embodiment is basically the same as the device shown in FIG. 11, and the same applies to FIG. 11 and the corresponding text description.

The device includes: an obtaining module 201, a first determining module 202, a second determining module 203, a downloading module 204, a first determining module 205, a second determining module 206, a third determining module 207, and a first blocking download module 208.

The obtaining module 201 is configured to acquire the current network speed of the network.

The first determining module 202 is configured to determine, according to the current network speed of the network, the number of file partitions currently suitable for downloading by one connection, wherein the file is composed of a plurality of file blocks of fixed size.

The number of blocks that the network is currently suitable for downloading by a connection can be obtained by the following formula:

And

The second determining module 203 is configured to determine, according to the number of file partitions and the size of each file partition, the size of the file segment that the network is currently suitable for downloading by one connection.

The download module 204 is for initiating a new connection for downloading a file fragment to download the file.

The obtaining module 201 can obtain the current network speed by using the first blocking download module 208. Specifically, the first block download module 208 can divide the file into one file when starting the download. The size of the block initiates a first connection for the download task target of the single connection (the first connection is used to download a block) to download the file, and the obtaining module 201 can determine the current network of the network according to the download process of the first block download module 208. speed. In addition, the obtaining module 201 can also determine the current network speed of the network according to the download process of just completing the download monochrome connection.

The third determining module 207 can determine whether to support the resume transmission according to the message returned in the downloading process of the first blocking download module 208. In the case of determining that the resume transmission is supported, the obtaining module 201 can execute the acquiring network. Current network speed operation.

The first determining module 205 is configured to determine whether the number of connections that have been initiated for downloading the file has reached a preset upper limit. If so, the current connection download in the download module 204 is awaited; if not, the first determination module 202 is returned.

The second determining module 206 is configured to determine whether all file partitioning of the file is completed. If no download is completed, the first determination module 202 is returned; if the download is completed, the download module 204 ends the download of the file.

In the embodiment shown in FIG. 13, the first determining module 205 and the second determining module 206 are connected to the first determining module 202.

It should be understood that the first judging module 205 and/or the second judging module 206 may also be connected to the obtaining module 201. In this way, during the downloading process, for example, when the first determining module 205 determines that the number of connections has not reached the preset upper limit value, or when the second determining module 205 determines that all the file blocks of the completed file have not been downloaded, the obtaining module may be used. 201 re-determines the network speed currently sent by the network according to the download process of the connection that just completed the download. As a result, the network speed can be monitored at any time, so that the size of the file segments downloaded by a single connection can be updated at any time.

In this embodiment, the current network speed of the network is obtained; according to the current network speed of the network, the number of files currently suitable for downloading by one connection is determined; according to the number of file partitions and each file partition The size determines the size of the total file partition currently suitable for download by a connection; initiates a new connection to download the file for the download task target at the size of the total file partition. According to the current network speed of the network, determining the number of file partitions that the network is currently suitable for connection to download, thereby determining to initiate a new connection to download the file for the download task target by the size of the total file partition currently suitable for connection downloading. In this way, it is possible to dynamically allocate the currently available downloaded files. The number of blocks is divided, so that the network bandwidth is rationally utilized, and the download speed is effectively improved.

14 is a block diagram showing one embodiment of a computing device capable of downloading files in accordance with the present invention.

As shown in FIG. 14, the computing device includes a memory 30, a network communication module 10, and a processor 20.

The network communication module 10 is used to connect to a network.

The processor 20 is connected to the network communication module 10 and the memory 30. The processor 20 obtains the current network speed of the network through the network communication module 10, determines the size of the file segment currently suitable for downloading by one connection according to the current network speed of the network, and initiates a new connection for downloading a file segment, The file is downloaded by the network communication module 10, and the downloaded file segment is saved on the memory 30. Here, the file fragment may include at least one file partition.

In addition, the processor 20 can also perform other steps in the methods described above, and details are not described herein again.

It will be apparent to those skilled in the art that the technology in the embodiments of the present invention can be implemented by means of software plus necessary general hardware including general-purpose integrated circuits, general-purpose CPUs, general-purpose memories, general-purpose components, and the like. It can be implemented by dedicated hardware including an application specific integrated circuit, a dedicated CPU, a dedicated memory, a dedicated component, etc., but in many cases the former is a better implementation. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a read-only memory. (ROM, Read-Only Memory), Random Access Memory (RAM), disk, CD, etc., including a number of instructions to make a computer device (can be a personal computer, server, or network device, etc.) The methods described in various embodiments of the invention or in certain portions of the embodiments are performed.

Accordingly, the above technical concept of the present invention can also be embodied as a non-transitory machine readable storage medium having executable code stored thereon. When the executable code is executed by the processor, the processor is caused to perform the method described above.

In another aspect, the above technical concept of the present invention can also be embodied as a computing device including a processor and a non-transitory machine readable storage medium. The non-transitory machine readable storage medium stores executable code thereon. When the executable code is executed by the processor, the processor is caused to perform the method described above.

Furthermore, the method according to the invention can also be implemented as a computer program comprising computer program code instructions for performing the various steps defined above in the above method of the invention. Alternatively, the method according to the invention may also be embodied as a computer program product comprising a computer readable medium on which is stored a computer for performing the above-described functions defined in the above method of the invention program. The various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality and operation of possible implementations of systems and methods in accordance with various embodiments of the present invention. In this regard, each block of the flowchart or block diagram can represent a module, a program segment, or a portion of code that includes one or more of the Executable instructions. It should also be noted that in some alternative implementations, the functions noted in the blocks may also occur in a different order than the ones in the drawings. For example, two consecutive blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented in a dedicated hardware-based system that performs the specified function or operation. Or it can be implemented by a combination of dedicated hardware and computer instructions.

The embodiments of the present invention have been described above, and the foregoing description is illustrative, not limiting, and not limited to the disclosed embodiments. Numerous modifications and changes will be apparent to those skilled in the art without departing from the scope of the invention. The choice of terms used herein is intended to best explain the principles, practical applications, or improvements of the techniques in the various embodiments of the embodiments, or to enable those of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

A file downloading method, the file consisting of a plurality of fixed-size file blocks, wherein the method comprises:

Get the current network speed of the network;

Determining, according to a current network speed of the network, a size of a file segment currently suitable for downloading by a connection, the file fragment including at least one of the file partitions;

A new connection for downloading one of the file fragments is initiated to download the file.
The method according to claim 1, wherein the step of determining a size of a file segment currently suitable for downloading by a connection according to a current network speed of the network comprises:

Determining, according to the current network speed of the network, the number of the file partitions currently suitable for downloading by one connection;

The size of the file fragment is determined according to the number of the file partitions and the size of each of the file partitions.
The method according to claim 2, wherein the size of the file fragment is the number of the file partitions multiplied by the size of each of the file partitions, wherein each of the files is chunked Equal in size.
The method according to claim 2, wherein the number of file partitions currently suitable for downloading by a connection is obtained by the following formula:

Wherein, the n is a coefficient, and the current network speed refers to the amount of data that the network can currently transmit per second.
The method according to any one of claims 1 to 4, further comprising:

After initiating a step of downloading a new connection of the file segment to download the file, determining whether the number of connections currently connected to download the file reaches a preset upper limit value;

If it is reached, wait for the current connection download to complete;

If not, returning to the step of determining the size of the file segment currently suitable for download by a connection based on the current network speed of the network.
The method according to any one of claims 1 to 4, further comprising:

After the current connection download is completed, it is determined whether all file partitions of the file are downloaded;

If no download is completed, returning to the step of determining a size of a file segment currently suitable for downloading by a connection according to a current network speed of the network;

If the download is complete, the download of the file is ended.
The method according to any one of claims 1 to 4, wherein the method further comprises:

At the beginning of the download, a first connection for downloading a file partition is initiated to download the file,

The step of acquiring the current network speed of the network includes determining a current network speed of the network according to a download process of the first connection.
The method of claim 7, wherein the method further comprises:

Determining whether to support the resume of the breakpoint according to the message returned during the download process of the first connection,

Wherein, in the case of supporting the resume of the breakpoint, the step of acquiring the current network speed of the network is performed.
The method according to any one of claims 1 to 4, wherein the step of acquiring the current network speed of the network comprises:

During the download process, the current network speed of the network is determined based on the download process of the connection that just completed the download.
A file downloading device, wherein the file is composed of a plurality of fixed-size files, wherein the device comprises:

Obtaining a module, configured to acquire a current network speed of the network;

a determining module, configured to determine, according to a current network speed of the network, a size of a file segment currently suitable for downloading by a connection, the file segment including at least one of the file segments;

A download module for initiating a new connection for downloading a piece of the file to download the file.
The apparatus according to claim 10, wherein the determining module comprises:

a first determining module, configured to determine, according to a current network speed of the network, a number of the file partitions currently suitable for downloading by one connection;

And a second determining module, configured to determine a size of the file segment according to the number of the file partitions and the size of each of the file partitions.
The apparatus according to claim 11, wherein the size of the file fragment is the number of the file partitions multiplied by the size of each of the file partitions, wherein each of the files is chunked Equal in size.
The apparatus according to claim 11, wherein said number of files currently adapted to be downloaded by a connection is obtained by the following formula:

Wherein, the n is a coefficient, and the current network speed refers to the amount of data that the network can currently transmit per second.
The device according to any one of claims 10-13, wherein the device further comprises:

a first determining module, configured to determine, after the downloading module initiates a new connection for downloading a file segment to download the file, whether the number of connections currently connected to download the file is reached Preset upper limit value;

If so, waiting for the current connection download in the download module to be completed;

If not, the determination module is returned.
The device according to any one of claims 10 to 13, wherein the device further comprises:

a second determining module, configured to determine whether all file partitions of the file are downloaded after the current connection downloading in the downloading module is completed;

Returning to the determining module if no download is completed;

If the download is complete, the download module ends the download of the file.
The device according to any one of claims 10-13, wherein the device further comprises:

a first block downloading module, configured to initiate a first connection for downloading a file block to download the file when starting the downloading,

The obtaining module determines a current network speed of the network according to a download process of the first blocking download module.
The device according to claim 16, wherein the device further comprises:

The third determining module determines whether to support the resume of the breakpoint according to the message returned during the downloading process of the first block downloading module.

Wherein, in the case of supporting the resume of the breakpoint, the step of acquiring the current network speed of the network is performed.
The apparatus according to any one of claims 10-13, wherein in the downloading process, the obtaining module determines the current network speed of the network according to the downloading process of the connection that just completed the download.
A non-transitory machine readable storage medium having stored thereon executable code that, when executed by a processor, causes the processor to perform the method of any of claims 1-9 method.
A computing device capable of downloading a file, the file being composed of a plurality of fixed-size files, the computing device comprising:

Memory

a network communication module for connecting to a network;

a processor, connected to the network communication module and the memory, configured to acquire a current network speed of the network by using the network communication module, and determine, according to the current network speed of the network, that the current network is suitable for downloading by one connection a size of the file fragment, initiating a new connection for downloading one of the file fragments to download the file via the network communication module and saving the downloaded file fragment on the memory, the file fragment including at least One of the files is chunked.