ReadStream
create a ReadStream
var cs = require('path/to/readStream').controlStream
fs.createReadStream('file').pipe(cs)
cs.read(50, function(err, data){
//first 50 bytes are available in data
})
move to a certain location
cs.curser = 100
cs.read(50, function(err, data){
//read bytes 100 to 150
})
pipe to a destination
var cs = require('path/to/readStream').controlStream
fs.createReadStream('file').pipe(cs).pipe(dest)
pipe to multiple destinations
var cs = require('path/to/readStream').controlStream
fs.createReadStream('file').pipe(cs)
cs.pipe(dest1)
cs.pipe(dest2)
describe pace and cadence of the pipe (bytes per second)
var cs = require('path/to/readStream').controlStream
fs.createReadStream('file').pipe(cs)
cs.pipe(dest1, {pace:50,cadence:1000})
//pipe at 50 bytes per second