CN110134510B

CN110134510B - RAM (random Access memory) resource allocation method and device based on intelligent contract

Info

Publication number: CN110134510B
Application number: CN201910245616.8A
Authority: CN
Inventors: 熊睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2021-09-14
Anticipated expiration: 2039-03-28
Also published as: CN110134510A

Abstract

The invention provides a RAM resource allocation method and device based on an intelligent contract and an execution method and device of the intelligent contract, which are implemented by acquiring RAM resources of a user; calling a preset distribution interface in the intelligent contract according to the service type; determining a data format and a preset space, and allocating the RAM resource to obtain a preset RAM resource; executing the intelligent contract by utilizing the preset RAM resource; the method is based on the intelligent contract, RAM resources required by the business are pre-distributed to the user, and the intelligent contract adopts the modes of filling, using and recycling when using the RAM resources pre-distributed by the user, so that the resources pre-distributed by the user can be reused; when the method in the intelligent contract is executed, the data state is updated according to the business logic, the data size is kept unchanged, the operation cost of the RAM of a project party is reduced, and the risk that the RAM is maliciously consumed to cause service unavailability is reduced.

Description

RAM (random Access memory) resource allocation method and device based on intelligent contract

Technical Field

The invention relates to the field of block chains, in particular to a RAM resource allocation method and device based on an intelligent contract and an execution method and device of the intelligent contract.

Background

An intelligent contract is a set of code and data, also called a "programmable contract," that is, a contract defined by program code, that presets execution conditions, and that executes behaviors when the execution conditions are triggered. Because of the characteristics of the intelligent contract such as public transparency and incapability of being tampered randomly, and the characteristics of functional stability and neutrality, the intelligent contract has more and more practical applications in the service scene.

In the process of executing the EOS intelligent contract, CPU and memory resources of the EOS node need to be consumed, RAM is memory database resources on an EOS software platform, and the RAM is required to be consumed by database records. In order to maintain efficient operation of the super node, if block chain data is to be kept available for storage and modification at any time, the data needs to be stored in a memory. In the prior art, RAM resources need to be purchased from a system contract, authorization of a user needs to be obtained when the RAM resources are consumed, and the RAM resources are returned to an owner when data are deleted; the authorization of an initiator is required in the process of executing the intelligent contract, and the consumption of RAM resources is required to be authorized by an owner, so that the service logic is very inconvenient in the implementation process; or the intelligent contract account undertakes all RAM resource consumption, RAM resources are distributed to the user by the DAPP project party, the problem of inconvenience of authorization is solved, and the operation cost of the DAPP is greatly increased. Therefore, in the prior art, the RAM allocation method not only increases the operation cost of the project side, but also has the risk of being attacked maliciously, so that the RAM resource of the project side is exhausted, and the service is unavailable.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: how to reduce project side RAM operation costs, and how to reduce the risk of service unavailability caused by malicious consumption of RAM.

In order to solve the technical problem, the invention provides a RAM resource allocation method based on an intelligent contract, which comprises the following steps:

obtaining RAM resources of a user;

calling a preset distribution interface in the intelligent contract according to the service type;

and determining a data format and a preset space, and allocating the RAM resource to obtain a preset RAM resource.

In one embodiment, the method for allocating the RAM resource to obtain the preset RAM resource includes:

creating prestored data with empty content according to the data format and a preset space;

and storing the pre-stored data as a preset RAM resource through a multi-index table.

In one embodiment, the method further comprises:

the size of the data bytes of the pre-stored data in the preset RAM resource is unchanged.

The invention also provides an execution method of the intelligent contract, which comprises the following steps:

acquiring the list hanging information of a user;

and writing the hang ticket information into pre-stored data of preset RAM resources in the RAM resource allocation method based on the intelligent contract according to any one of the embodiments.

In one embodiment, the method further comprises:

and when the transaction of the coupon information in the pre-stored data is successful, deleting the coupon information and storing the empty pre-stored data.

In one embodiment, the method further comprises:

and when the data volume of the menu hanging information established by the user exceeds the storage space of the preset RAM resource, acquiring the user authorization and increasing the allocation of the preset RAM resource.

As still another aspect of the present invention, there is also provided a RAM resource allocation apparatus based on a smart contract, the apparatus including:

the first acquisition module is used for acquiring the RAM resource of a user;

the calling module is used for calling a preset distribution interface in the intelligent contract according to the service type;

and the allocation module is used for determining the data format and the preset space and allocating the preset RAM resource.

As another aspect of the present invention, there is also provided an apparatus for executing an intelligent contract, the apparatus including:

the second acquisition module is used for acquiring the list hanging information of the user;

an editing module: and the RAM resource allocation module is used for writing the hang list information into the preset RAM resource obtained by the allocation module in the RAM resource allocation device based on the intelligent contract in the embodiment.

As another aspect of the present invention, there is also provided an intelligent contract management apparatus, comprising:

a memory for storing a computer program;

a processor for implementing the method for allocating RAM resources based on intelligent contracts as described in the above embodiments and/or the method for executing an intelligent contract as described in the above embodiments when the computer program is executed.

As another aspect of the present invention, there is also provided a computer-readable storage medium characterized in that a computer program is stored in the computer-readable storage medium,

the computer program, when executed by a processor, implements a method for intelligent contract-based RAM resource allocation as described in any of the above embodiments, and/or a method for intelligent contract execution as described in one of the above embodiments.

The invention has the beneficial effects that: the method is based on the intelligent contract, RAM resources required by the business are pre-distributed to the user, and the intelligent contract adopts the modes of filling, using and recycling when using the RAM resources pre-distributed by the user, so that the resources pre-distributed by the user can be reused; when the method in the intelligent contract is executed, the data state is updated according to the business logic, the data size is kept unchanged, the operation cost of the RAM of a project party is reduced, and the risk that the RAM is maliciously consumed to cause service unavailability is reduced.

Drawings

FIG. 1 is a flow chart of a method for allocating RAM resources according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for executing intelligent contracts according to an embodiment of the invention;

FIG. 3 is a diagram illustrating an apparatus for allocating RAM resources according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an intelligent contract execution apparatus according to an embodiment of the present invention.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The transaction needs to be subjected to digital signature and hash operation before being submitted, and after the transaction is submitted to the blockchain, the transaction cannot be tampered after being recorded on the blockchain through the confirmation of a plurality of blockchains; but before the user submits the order and the transaction is not yet completed, an intelligent contract is supported in an ETH/EOS block chain, and the intelligent contract provides an operation method for order editing and storing, for example, in an exchange environment, the action of the user hanging the order is actually an operation method for calling the intelligent contract, the transaction is initiated through the action of the hanging order, the transaction cannot be tampered, but the operation method corresponding to the transaction can modify the global state, wherein the global state data is stored in the RAM resource; specifically, in the design of exchange, firstly, the order is hung, then the order is matched by a matching engine, and then delivery of the fund is completed, wherein the information of the hung order is stored in the RAM; the common method is that after a user submits the list hanging information, an intelligent contract provides RAM space to store the list hanging information, so that the use of the RAM space generates operations of purchase, authorization, distribution and the like according to the change of the list hanging information of the user every time, the operation cost of the RAM of a project party is increased, and the risk of service unavailability caused by maliciously consuming the RAM exists.

The embodiment of the invention provides a RAM resource allocation method based on an intelligent contract, which comprises the following steps of:

s101, obtaining RAM resources of a user;

s102, calling a preset distribution interface in the intelligent contract according to the service type;

s103, determining a data format and a preset space, and allocating the RAM resource to obtain a preset RAM resource.

In this embodiment, in S101, RAM resources of a user need to be purchased by EOS, to a certain extent, RAM represents cash, and after the user purchases the RAM resources, the RAM resources belong to the user, and in this step, the RAM resources of the user are allocated after obtaining the RAM resources of the user, so that the problem of increased running cost caused by the fact that an intelligent contract account bears all RAM resource consumption is avoided; in S102, the allocation interface is provided for the intelligent contract according to the service types, where the service types include different transaction types of exchanges, transaction types of bets, and the like, for example: in the transaction place suspension business, the intelligent contract can provide a method such as openaccount (int reserved), and the user calls the method to consume the RAM resource of the user; in S103, order data models corresponding to different service types pre-stored in the intelligent contract are obtained, the RAM space occupied by each order is the sum of the spaces occupied by each field in the order data model, and then the preset space is allocated in the RAM resource of the user according to the user' S needs, thereby determining the preset RAM resource. The order data model may be as in table 1, among others.

TABLE 1 order data model sample

Item	Type	Description
			Id	uint64_t	Id
Creator	uint64_t	Creator Account
			Pair_id	Uint32_t	Transaction pair id
Type	Uint8_t	Type of order
			Created_time	time	Creation time
Updated-time	time	Update time
			initial	asset	Initial digital assets
Remain	asset	Remaining digital assets
			Price	float64	Price
Deal	asset	Committed digital assets

In the present embodiment, a method is adopted in which the user allocates the RAM required by the user in advance, and since the user has not hung the single action at this time, the user RAM space consumed in advance by creating the empty list is used as the preset RAM resource. The empty order is a hang order record with empty content stored according to the data format, and the hang order record is stored in a multi-index table format.

In one embodiment, the method further comprises:

In this embodiment, the RAM resource is allocated to obtain a preset RAM resource, where the preset RAM resource can be reused as long as the space remains unchanged, and the method for keeping the size of the data byte unchanged may be that the data format of the null ticket is consistent with the data format of the valid ticket, for example: one coupon needs 1K of RAM, and the coupon record fixedly consumes 1K of RAM space whether being valid or empty, specifically, the coupon record preset format only contains (orderId int, print float, atomic float), the valid coupon is (1, 0.100, 100), and the empty coupon is (0, 0, 0), where the consumed RAM space is the same when the valid coupon and the empty coupon are stored respectively, so that after the successful coupon information of transaction is cleared, the preset data is stored in an empty coupon, that is, the size of data byte can be kept unchanged.

The method and the device reduce frequent authorization of the user, solidify the allocated RAM resources, and avoid the inconvenience of frequently calling the reserved RAM space due to the fact that repeated authorization of space is increased and the space is reduced and the pre-allocated RAM is directly released, so that the user experience is improved.

The present invention further provides a method for executing an intelligent contract, as shown in fig. 2, the method includes:

s201, acquiring the list hanging information of a user;

s202, writing the menu information into pre-stored data of a preset RAM resource.

In this embodiment, the preset RAM resource is a RAM resource obtained according to the RAM resource allocation method based on the intelligent contract; when the user inputs the list hanging information, the intelligent contract obtains the unused empty list hanging from the RAM resource preset by the user, and the unused empty list hanging is used for storing the list hanging information of the user, so that the actual transaction is initiated.

When actual hang ticket transactions are matched, the hang tickets of the buyer and the seller need to be modified according to matching results; when the preset RAM resource space is full and the user inputs a new hang list record, the space occupied by the record is increased, and the authorization of the owner of the original space needs to be acquired.

In one embodiment, the total RAM resource space purchased by a user is 20K, a service type a calls an intelligent contract to pre-allocate 2K as a preset RAM resource, the RAM resource which can be freely utilized by the user becomes 18K, after the resource allocation, the user initiates a service type a sheet hanging action, sheet hanging information corresponding to the service type a is stored in the preset RAM resource of 2K, but the sheet hanging information is successfully transacted and is reset, the sheet hanging information successfully transacted in the preset RAM resource of 2K is cleared, empty sheet hanging information with the same occupied space size is stored, but the available RAM resource of the user is not released, the available RAM resource of a user account in the whole process is 18K, the preset RAM resource is 2K, and the preset RAM resource is reused when the sheet is re-hung. When the reserved RAM resource is 2K, one suspension list fixedly consumes 1K of RAM, the number of the next suspension list is 2 at most, if the 2 suspension lists are successfully matched, the suspension list can be directly reused, and the reserved method does not need to be called again to allocate the RAM.

In one embodiment, the method further comprises:

If the transaction is successful and the menu-hanging transaction is submitted to the block chain, the corresponding menu-hanging record in the RAM resource needs to be deleted, the occupied space is reduced, and the space allocated before is released; in this embodiment, while deleting the hang ticket information, a corresponding blank ticket is stored according to a preset format, and the valid ticket and the blank ticket consume the same space when being stored through a multi-index table; the implementation method can keep the preset RAM resource space unchanged, avoids the problem that space is increased due to space change and needs to be authorized, and reduces the problem that the space can directly release the pre-allocated RAM, thereby improving user experience without frequently calling the method for reserving the RAM space.

In one embodiment, the method further comprises:

In this embodiment, the preset RAM resource of the user may be expanded, when the data amount of the coupon information established by the user exceeds the initial preset RAM resource space, the coupon information is input again, an authorization request for increasing the allocation of the preset RAM resource is issued, and if the user authorization is obtained, an interface for expanding the preset RAM resource space by using an intelligent contract is invoked, where a specific expansion method is consistent with the manner of initially allocating the preset RAM resource, and the data format and the preset space are also different according to different service types.

Based on the same inventive concept, the embodiment of the present invention further provides an apparatus for allocating RAM resources based on an intelligent contract, and because the principle of the problem solved by the apparatus is similar to that of the method for allocating RAM resources based on an intelligent contract in the foregoing embodiment, the implementation of the apparatus may refer to the implementation of the method in the foregoing embodiment, and repeated details are not repeated.

As still another aspect of the present invention, there is also provided a RAM resource allocation apparatus based on a smart contract, as shown in fig. 3, the apparatus including:

a first obtaining module 11, configured to obtain a RAM resource of a user;

the calling module 12 is used for calling a preset distribution interface in the intelligent contract according to the service type;

and the allocation module 13 is configured to determine a data format and a preset space, and allocate a preset RAM resource.

Based on the same inventive concept, the embodiment of the present invention further provides an apparatus for executing an intelligent contract, and as the principle of the problem solved by the apparatus is similar to that of the method for executing an intelligent contract of the foregoing embodiment, reference may be made to the method of the foregoing embodiment for implementation of the apparatus, and repeated details are not repeated.

As another aspect of the present invention, there is also provided an apparatus for executing an intelligent contract, as shown in fig. 4, the apparatus including:

a second obtaining module 21, configured to obtain the hang ticket information of the user;

the editing module 22: and the RAM resource allocation module is used for writing the hang list information into the preset RAM resource obtained by the allocation module in the RAM resource allocation device based on the intelligent contract in the embodiment.

a memory for storing a computer program;

The embodiment of the invention is suitable for any scenes that RAM resources are needed in the EOS of the public chain, including but not limited to exchanges, lotteries, guessing intelligent contracts.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. A RAM resource allocation method based on intelligent contracts, the method comprising: obtaining RAM resources of a user and obtaining an order data model corresponding to a service type pre-stored in an intelligent contract, wherein the sum of spaces occupied by each field in the order data model is the RAM space occupied by an order;

RAM resources of a user are consumed to call a preset distribution interface in the intelligent contract, and the distribution interface is provided for the intelligent contract according to the service type;

determining a data format and a preset space, creating an empty list in a RAM (random access memory) resource of a user to pre-consume the RAM space of the user, and allocating the RAM resource to obtain the preset RAM resource;

and setting the data format of the empty list to be consistent with that of the effective list, after clearing the list hanging information which is successful in transaction, keeping the data byte size of the pre-stored data in the preset RAM resource unchanged, and storing the empty list hanging information which occupies the same space size, but not releasing the available RAM resource of the user.

2. The method of claim 1, wherein the method of allocating the RAM resource to obtain a preset RAM resource comprises:

creating prestored data with empty content according to the data format and a preset space; and storing the pre-stored data as a preset RAM resource through a multi-index table.

3. A method of executing an intelligent contract, the method comprising: acquiring the list hanging information of a user;

writing the hang ticket information into pre-stored data of a preset RAM resource in the RAM resource allocation method based on the intelligent contract according to any one of claims 1-2;

when the transaction of the coupon information in the pre-stored data is successful, deleting the coupon information and storing the empty pre-stored data;

4. An apparatus for allocating RAM resources based on smart contracts, the apparatus comprising: the intelligent contract management system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring RAM (random access memory) resources of a user and acquiring an order data model corresponding to a service type stored in advance in an intelligent contract, and the sum of spaces occupied by fields in the order data model is the RAM space occupied by an order;

the calling module is used for calling a preset distribution interface in the intelligent contract by consuming the RAM resource of the user, and the distribution interface is provided for the intelligent contract according to the service type;

the allocation module is used for determining a data format and a preset space, creating an empty list in the RAM resource of the user to pre-consume the RAM space of the user, and allocating the preset RAM resource; and the data format used for setting the null order is consistent with the data format of the effective order, and the size of the data byte of the pre-stored data in the preset RAM resource is kept unchanged after the order hanging information of successful transaction is cleared.

5. An apparatus for executing an intelligent contract, the apparatus comprising: the second acquisition module is used for acquiring the list hanging information of the user;

an editing module: a preset RAM resource obtained by an allocation module in the RAM resource allocation device based on the intelligent contract according to claim 4;

6. An intelligent contract management apparatus, comprising: a memory for storing a computer program;

a processor for implementing the intelligent contract-based RAM resource allocation method of any one of claims 1 to 2 and/or the execution method of an intelligent contract of claim 3 when executing the computer program.

7. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium,

the computer program, when executed by a processor, implements a method for intelligent contract-based RAM resource allocation according to any of claims 1 to 2 and/or a method for intelligent contract execution according to claim 3.