block-run

block run code Execute code block in sequence by channels

install

npm install block-run

api

run

• FunctionName run
  • Return anything
  • Description run block code in channel
  • Param

name | type |require |default |Description ------------|------|--------|-----------|------------ channel |string|must |null |block code channel func |Function or GeneratorFunction or AsyncFunction|must |null |block code function funTimeout |number|option |-1 |function timeout

getQueue

• FunctionName getQueue
  • Return object
  • Description get all channel queue
  • Param nothing

base example

const assert = require('assert');
const co = require('co');
const BlockRun = require('block-run');

//Promise 
BlockRun.run('testChannel1',()=>{
    return 1;
}).then((res)=>{
    assert.equal(res,1,'Promise failed');
}).catch((e)=>{
    throw e;
});


let p1 =(index,time)=>{
    return new Promise((res,rej)=>{
        setTimeout(()=>{
            res(index);
        },time)
    });
}

// testChannel2 make two async function in sequence 

//co yield 
co(function*(){
    try{
        for(let i = 0;i<10;i++)
        {
            let res = yield BlockRun.run('testChannel2',function* (){
                return yield p1(i,2000);
            });
            assert.equal(res,i,'co yield failed'+res);
        }
    } catch(e)
    {
        throw e;
    }
});

//async
(async () =>{
    try{
        for(let i = 0;i<10;i++)
        {
            let res = await BlockRun.run('testChannel3',async ()=>{
                return await p1(i,2000);
            });
            assert.equal(res,i,'async failed'+res);
        }
    } catch(e)
    {
        throw e;
    }
})();

different

before

code:

let p1 =(index,time)=>{
   return new Promise((res,rej)=>{
       setTimeout(()=>{
           res(index);
       },time)
   });
}

(async () =>{
       for(let i = 0;i<10;i++)
       {
            console.log(await p1(i,1000))
       }
})();
(async () =>{
       for(let i = 0;i<10;i++)
       {
            console.log(await p1(i,1000))
       }
})();

result:

one seconds two number 
two async function run at the same time

aftar

code:

const BlockRun = require('block-run');
let p1 =(index,time)=>{
   return new Promise((res,rej)=>{
       setTimeout(()=>{
           res(index);
       },time)
   });
}

(async () =>{
       for(let i = 0;i<10;i++)
       {
           let res = await BlockRun.run('sameChannel',async ()=>{
               return await p1(i,1000);
           });
		console.log(res)
       }
})();
(async () =>{
       for(let i = 0;i<10;i++)
       {
           let res = await BlockRun.run('sameChannel',async ()=>{
               return await p1(i,1000);
           });
		console.log(res)
       }
})();

result:

one seconds one number 
two async function run in sequence by same channel name

other

针对使用非块运行和块运行并发压测对比