@sec-block/secjs-vmlite

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SecVM

Definition: A lite version of SecVM. It is deployed on nodes. It targets to translate bytecode and excute the corresponding operations.

Kind: global class

• SecVM
  • .runTrans(opts, cb)

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Install

npm install @sec-block/secjs-vmlite --save 

Usage

let SECVM = require('../src/index.js')

secVm = new SECVM()
secVm.runTrans(opts, cb)

---

runTrans(opts, cb)

A small function created as there is a lot of sha256 hashing.

Kind: instance method of SecVM

Param	Type	Description
opts.code	Buffer	The bytecode of smart contracts' source code
opts.data	Buffer	The encoded input data -- invoked function name and input variables.
Example
```js
// Please refer to example/example.js
let SECVM = require('../src/index.js')

secVm = new SECVM() code = '606060...bb0029' data = 'c6888f...000006'

secVm.runTrans({ code: Buffer.from(code, 'hex'), data: Buffer.from(data, 'hex'), gasLimit: Buffer.from('ffffffff', 'hex') }, function (err, results) { console.log('returned: ' + results.vmResults.return.toString('hex')) console.log('gasUsed: ' + results.vmResults.gasUsed.toString()) console.log(err) })

* * *

### LICENSE
ISC
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# SEC轻量级虚拟机-中文简介

该项目是SEC虚拟机的一个轻量级版本。不同于以太坊虚拟机的是，SEC虚拟机运行时并不会对区块链进行更改，从SEC虚拟机中返回的数据会被继续使用进而对区块链产生更改。SEC虚拟机的输入参数应该是智能合约编译后的Bytecode以及编码后的合约调用时的信息和变量。返回值包括合约函数计算的结果（如果该函数有返回值的话），以及计算所要消耗的gas值。