CN110704134A - Method and device for performing function expansion on block chain - Google Patents
Method and device for performing function expansion on block chain Download PDFInfo
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Abstract
The invention provides a block chain function expansion method and a block chain function expansion device, wherein the method comprises the following steps: reserving interfaces of hook functions between transaction flows; when the transaction flow is executed to the interface of the reserved hook function, the injected hook function is called first, and then the subsequent transaction flow is executed continuously; and when the transaction flow needs to be functionally expanded, realizing a hook function according to the interface of the reserved hook function, and injecting the hook function into the transaction flow. By the method, the basic logic of the block chain is fully reused, unnecessary work of a developer is reduced, and new functions can be flexibly added according to the requirements of the developer.
Description
Technical Field
The invention relates to the technical field of internet, in particular to the function expansion of a block chain.
Background
The block chain technology creates a value network without trust for people, and a virtual machine with complete pictures introduced by a block chain system represented by Etheng greatly enriches the application scenes of the block chain, so that people can create various decentralized applications by writing intelligent contracts.
However, the currently prevailing blockchain system has many functional limitations, including:
1. certain operations cannot be actively triggered. For example, for a typical security trading scenario, in a traditional exchange, after a certain order is submitted, the trading system automatically matches the order with a proper price to match, and in a decentralized exchange, since the blockchain cannot actively trigger the matching operation, a user can only select the order to be traded by himself or send the order to a third party to complete matching, which is difficult to achieve in terms of user experience and safety.
2. Many system parameters need to be hard coded and are difficult to flexibly adjust.
Therefore, how to efficiently and flexibly add new functions in the existing operation flow according to development requirements becomes a technical problem to be solved urgently.
Disclosure of Invention
The application aims to provide a design scheme of a block chain system, so that a developer can flexibly expand functions and enrich application scenes of the block chain.
To achieve the above object, the present invention provides a method for extending a function of a block chain, comprising:
reserving interfaces of hook functions between transaction flows;
when the transaction flow is executed to the interface of the reserved hook function, the injected hook function is called first, and then the subsequent transaction flow is executed continuously;
and when the transaction flow needs to be functionally expanded, realizing a hook function according to the interface of the reserved hook function, and injecting the hook function into the transaction flow.
Particularly, the interface is a reserved interface, the default implementation does not include any operation, and the customized implementation can be performed according to the service requirement.
In particular, the transaction flow comprises: the transaction pool verifies the transaction, packages the transaction, and executes the transaction. The positions of the reserved hook function are: before entering the transaction pool, after entering the transaction pool, before packaging, after packaging, before execution and after execution 6 stages.
In particular, the interface of the pre-reservation function further includes: the hook function before entering the transaction pool is used to realize additional verification before the transaction enters the transaction pool.
In particular, the hook function after packaging is used for inserting additional transactions after the transactions are packaged.
In particular, the executed hook function is used for returning a certain commission fee to the user according to the cost of the transaction after the transaction is executed.
In order to achieve the above object, the present invention further provides a block chain function extension apparatus, including:
the reservation module reserves an interface of a hook function between transaction processes;
the calling module is used for calling the injected hook function when the transaction flow is executed to the interface of the reserved hook function, and then continuing to execute the subsequent transaction flow;
and the injection module is used for realizing a hook function according to the interface of the reserved hook function and injecting the hook function into the transaction flow when the transaction flow needs to be functionally expanded.
Particularly, the interface is a reserved interface, the default implementation does not include any operation, and the customized implementation can be performed according to the service requirement.
In particular, the transaction flow comprises: the transaction pool verifies the transaction, packages the transaction, and executes the transaction. The positions of the reserved hook function are: before entering the transaction pool, after entering the transaction pool, before packaging, after packaging, before execution and after execution 6 stages.
In particular, the hook function before entry into the transaction pool is used to enable additional validation before the transaction enters the transaction pool.
In particular, the hook function after packaging is used for inserting additional transactions after the transactions are packaged.
In particular, the executed hook function is used for returning a certain commission fee to the user according to the cost of the transaction after the transaction is executed.
To achieve the above object, the present invention also provides an electronic device, including: a processor; and a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the operations of the above-described method.
To achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above method.
Compared with the prior art, the invention has the beneficial effects that: through the reserved interface, the basic logic of the block chain is fully reused, unnecessary work of a developer is reduced, new functions can be flexibly added according to the requirements of the developer, various functions which are not possessed by the current block chain system can be efficiently realized, and great help is provided for expanding the use scene of the current block chain.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a block chain system operation diagram according to an embodiment of the present invention
FIG. 2 is a flowchart of a block chain function expanding method according to an embodiment of the present invention
FIG. 3 is a block chain function expanding apparatus according to an embodiment of the present invention
FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention
Detailed Description
In order to make the technical solutions and advantages of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments in the present description may be combined with each other without conflict.
In view of the deficiencies of the prior art, the embodiments of the present application provide a method and an apparatus for extending a function of a block chain, which are described below.
Fig. 1 is a schematic diagram illustrating operation of a blockchain system according to an embodiment of the present invention, and as shown in fig. 2, the embodiment provides a method for extending blockchain functions, including:
s201, reserving interfaces of hook functions among transaction processes;
in step S201, the interface is a reserved interface, and the default implementation does not include any operation, and may be customized according to the service requirement.
S202, when the transaction flow is executed to the interface of the reserved hook function, the injected hook function is called first, and then the subsequent transaction flow is executed continuously;
in step S202, the developer may reserve interfaces and hook functions between one or more processes according to the requirement. For example, as shown in fig. 1, a hook function may be reserved before and after three processes of transaction pool verification, transaction packaging, and transaction execution, and respectively represent the hook functions before entering the transaction pool, after entering the transaction pool, before packaging, after packaging, before execution, and after execution in 6 stages, specifically: a hook function before entering the transaction pool (pre-tx-pool), a hook function after entering the transaction pool (post-tx-pool), a hook function before packaging (pre-package), a hook function after packaging (post-package), a hook function before execution (pre-execute), and a hook function after execution (post-execute).
After hooking of the hook function is finished, when the block flow is executed, the system executes the corresponding hook function according to the corresponding position sequence. As in fig. 1, the flow executed becomes: executing pre-tx-pool function-checking transaction and putting into transaction pool-executing post-tx-pool function-executing pre-package function-transaction pool packing block-executing post-package function-executing pre-execute function-virtual machine executing block-executing post-execute function.
If the user has the requirement, the corresponding hook function adding function can be realized. For example, a pre-tx-pool function may be implemented, with additional validation before the transaction enters the transaction pool; a post-package function can be realized, and a ratio of extra transactions is inserted after the transactions are packaged; a post-execute function may be implemented that returns a certain commission to the user based on the cost of the transaction after the transaction is performed. The user can realize one or more hook functions according to the requirement of the user.
And S203, when the transaction process needs to be functionally expanded, realizing a hook function according to the interface of the reserved hook function, and injecting the hook function into the transaction process.
Fig. 3 is a schematic diagram of a block chain function extension apparatus according to an embodiment of the present invention, and as shown in fig. 3, a block chain function extension apparatus 300 according to an embodiment of the present invention includes: a reservation module 301, a calling module 302, and an injection module 303.
A reservation module 301, reserving interfaces of hook functions between transaction flows;
the calling module 302 is used for calling the injected hook function first when the transaction flow is executed to the interface of the reserved hook function, and then continuing to execute the subsequent transaction flow;
and the injection module 303 is configured to implement a hook function according to the interface of the reserved hook function and inject the hook function into the transaction flow when the transaction flow needs to be functionally expanded.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. Referring to fig. 4, at a hardware level, the electronic device includes a processor, and optionally further includes an internal bus, a network interface, and a memory. The Memory may include a Memory, such as a Random-Access Memory (RAM), and may further include a non-volatile Memory, such as at least 1 disk Memory. Of course, the electronic device may also include hardware required for other services.
The processor, the network interface, and the memory may be connected to each other via an internal bus, which may be an ISA (Industry Standard Architecture) bus, a PCI (peripheral component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.
And the memory is used for storing programs. In particular, the program may include program code comprising computer operating instructions. The memory may include both memory and non-volatile storage and provides instructions and data to the processor.
The processor reads the corresponding computer program from the nonvolatile memory into the memory and then runs the computer program to form the shared resource access control device on the logic level. The processor executes the program stored in the memory and is specifically configured to perform any one of the operations of the above block chain function expansion method.
The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present specification may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present specification may be embodied directly in a hardware decoding processor, or in a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
Besides the software implementation, the electronic device of the embodiment of the present disclosure does not exclude other implementations, such as a logic device or a combination of software and hardware, and the like, that is, the execution subject of the following processing flow is not limited to each logic unit, and may also be hardware or a logic device.
The embodiments of the present specification also provide a computer-readable storage medium, on which a computer program is stored, where the computer program is configured to, when executed by a processor, implement the operations of any one of the block chain function extension methods.
In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present specification shall be included in the protection scope of the present specification.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Claims (14)
1. A method for extending a function of a block chain, comprising:
reserving interfaces of hook functions between transaction flows;
when the transaction flow is executed to the interface of the reserved hook function, the injected hook function is called first, and then the subsequent transaction flow is executed continuously;
and when the transaction flow needs to be functionally expanded, realizing a hook function according to the interface of the reserved hook function, and injecting the hook function into the transaction flow.
2. The method of claim 1, wherein the interface is a reserved interface, and the default implementation does not include any operation and can be customized according to service requirements.
3. The blockchain function expanding method according to claim 1 or 2, wherein the transaction flow includes: the transaction pool verifies the transaction, packs the transaction and executes the transaction;
the positions of the reserved hook function are: before entering the transaction pool, after entering the transaction pool, before packaging, after packaging, before execution and after execution 6 stages.
4. The blockchain function extension method of claim 3, wherein the hook function before entering the transaction pool is used to implement additional authentication before the transaction enters the transaction pool.
5. The blockchain function extension method of claim 3, wherein the packed hook function is used to enable insertion of additional transactions after the transactions are packed.
6. The blockchain function expansion method of claim 3, wherein the executed hook function is used to implement a certain commission to the user according to the cost of the transaction after the transaction is executed.
7. A blockchain function extension apparatus, comprising:
the reservation module reserves an interface of a hook function between transaction processes;
the calling module is used for calling the injected hook function when the transaction flow is executed to the interface of the reserved hook function, and then continuing to execute the subsequent transaction flow;
and the injection module is used for realizing a hook function according to the interface of the reserved hook function and injecting the hook function into the transaction flow when the transaction flow needs to be functionally expanded.
8. The device of claim 7, wherein the interface is a reserved interface, and the default implementation does not include any operation and can be customized according to service requirements.
9. The blockchain function expanding device according to claim 7 or 8, wherein the transaction flow includes: the transaction pool verifies the transaction, packs the transaction and executes the transaction;
the positions of the reserved hook function are: before entering the transaction pool, after entering the transaction pool, before packaging, after packaging, before execution and after execution 6 stages.
10. The blockchain function extension device of claim 9, wherein the hook function before entering the transaction pool is used to implement additional authentication before a transaction enters the transaction pool.
11. The blockchain function extension device of claim 9, wherein the packed hook function is configured to enable insertion of additional transactions after the transactions are packed.
12. The blockchain function extension device of claim 9, wherein the executed hook function is configured to implement a fee to be returned to the user according to the transaction cost after the transaction is executed.
13. An electronic device, comprising:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the operations of the method of any of claims 1-6.
14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110737637A (en) * | 2019-09-26 | 2020-01-31 | 北京字节跳动网络技术有限公司 | Function expansion method and device, electronic equipment and computer readable storage medium |
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Application publication date: 20200117 |