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
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 |
// 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
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。