How to use bufferutil - 10 common examples
To help you get started, we’ve selected a few bufferutil examples, based on popular ways it is used in public projects.
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fossasia / susper.com / node_modules / ws / lib / BufferUtil.js View on Github 
const target = Buffer.allocUnsafe(totalLength);
var offset = 0;
for (var i = 0; i < list.length; i++) {
const buf = list[i];
buf.copy(target, offset);
offset += buf.length;
}
return target;
};
try {
const bufferUtil = require('bufferutil');
module.exports = Object.assign({ concat }, bufferUtil.BufferUtil || bufferUtil);
} catch (e) /* istanbul ignore next */ {
/**
* Masks a buffer using the given mask.
*
* @param {Buffer} source The buffer to mask
* @param {Buffer} mask The mask to use
* @param {Buffer} output The buffer where to store the result
* @param {Number} offset The offset at which to start writing
* @param {Number} length The number of bytes to mask.
* @public
*/
const mask = (source, mask, output, offset, length) => {
for (var i = 0; i < length; i++) {
output[offset + i] = source[i] ^ mask[i & 3];
}
};* @return {Buffer} Converted view
* @private
*/
function viewToBuffer(view) {
const buf = Buffer.from(view.buffer);
if (view.byteLength !== view.buffer.byteLength) {
return buf.slice(view.byteOffset, view.byteOffset + view.byteLength);
}
return buf;
}
try {
const bufferUtil = require('bufferutil');
const bu = bufferUtil.BufferUtil || bufferUtil;
module.exports = {
concat,
mask(source, mask, output, offset, length) {
if (length < 48) _mask(source, mask, output, offset, length);
else bu.mask(source, mask, output, offset, length);
},
toArrayBuffer,
toBuffer,
unmask(buffer, mask) {
if (buffer.length < 32) _unmask(buffer, mask);
else bu.unmask(buffer, mask);
}
};
} catch (e) /* istanbul ignore next */ {
module.exports = {const target = Buffer.allocUnsafe(totalLength);
var offset = 0;
for (var i = 0; i < list.length; i++) {
const buf = list[i];
buf.copy(target, offset);
offset += buf.length;
}
return target;
};
try {
const bufferUtil = require('bufferutil');
module.exports = Object.assign({ concat }, bufferUtil.BufferUtil || bufferUtil);
} catch (e) /* istanbul ignore next */ {
/**
* Masks a buffer using the given mask.
*
* @param {Buffer} source The buffer to mask
* @param {Buffer} mask The mask to use
* @param {Buffer} output The buffer where to store the result
* @param {Number} offset The offset at which to start writing
* @param {Number} length The number of bytes to mask.
* @public
*/
const mask = (source, mask, output, offset, length) => {
for (var i = 0; i < length; i++) {
output[offset + i] = source[i] ^ mask[i & 3];
}
};const target = Buffer.allocUnsafe(totalLength);
var offset = 0;
for (var i = 0; i < list.length; i++) {
const buf = list[i];
buf.copy(target, offset);
offset += buf.length;
}
return target;
};
try {
const bufferUtil = require('bufferutil');
module.exports = Object.assign({ concat }, bufferUtil.BufferUtil || bufferUtil);
} catch (e) /* istanbul ignore next */ {
/**
* Masks a buffer using the given mask.
*
* @param {Buffer} source The buffer to mask
* @param {Buffer} mask The mask to use
* @param {Buffer} output The buffer where to store the result
* @param {Number} offset The offset at which to start writing
* @param {Number} length The number of bytes to mask.
* @public
*/
const mask = (source, mask, output, offset, length) => {
for (var i = 0; i < length; i++) {
output[offset + i] = source[i] ^ mask[i & 3];
}
};const target = Buffer.allocUnsafe(totalLength);
var offset = 0;
for (var i = 0; i < list.length; i++) {
const buf = list[i];
buf.copy(target, offset);
offset += buf.length;
}
return target;
};
try {
const bufferUtil = require('bufferutil');
module.exports = Object.assign({ concat }, bufferUtil.BufferUtil || bufferUtil);
} catch (e) /* istanbul ignore next */ {
/**
* Masks a buffer using the given mask.
*
* @param {Buffer} source The buffer to mask
* @param {Buffer} mask The mask to use
* @param {Buffer} output The buffer where to store the result
* @param {Number} offset The offset at which to start writing
* @param {Number} length The number of bytes to mask.
* @public
*/
const mask = (source, mask, output, offset, length) => {
for (var i = 0; i < length; i++) {
output[offset + i] = source[i] ^ mask[i & 3];
}
};*
* @param {Buffer} buffer The buffer to unmask
* @param {Buffer} mask The mask to use
* @public
*/
function _unmask (buffer, mask) {
// Required until https://github.com/nodejs/node/issues/9006 is resolved.
const length = buffer.length;
for (var i = 0; i < length; i++) {
buffer[i] ^= mask[i & 3];
}
}
try {
const bufferUtil = require('bufferutil');
const bu = bufferUtil.BufferUtil || bufferUtil;
module.exports = {
mask (source, mask, output, offset, length) {
if (length < 48) _mask(source, mask, output, offset, length);
else bu.mask(source, mask, output, offset, length);
},
unmask (buffer, mask) {
if (buffer.length < 32) _unmask(buffer, mask);
else bu.unmask(buffer, mask);
},
concat
};
} catch (e) /* istanbul ignore next */ {
module.exports = { concat, mask: _mask, unmask: _unmask };
}*
* @param {Buffer} buffer The buffer to unmask
* @param {Buffer} mask The mask to use
* @public
*/
function _unmask (buffer, mask) {
// Required until https://github.com/nodejs/node/issues/9006 is resolved.
const length = buffer.length;
for (var i = 0; i < length; i++) {
buffer[i] ^= mask[i & 3];
}
}
try {
const bufferUtil = require('bufferutil');
const bu = bufferUtil.BufferUtil || bufferUtil;
module.exports = {
mask (source, mask, output, offset, length) {
if (length < 48) _mask(source, mask, output, offset, length);
else bu.mask(source, mask, output, offset, length);
},
unmask (buffer, mask) {
if (buffer.length < 32) _unmask(buffer, mask);
else bu.unmask(buffer, mask);
},
concat
};
} catch (e) /* istanbul ignore next */ {
module.exports = { concat, mask: _mask, unmask: _unmask };
}const target = Buffer.allocUnsafe(totalLength);
var offset = 0;
for (var i = 0; i < list.length; i++) {
const buf = list[i];
buf.copy(target, offset);
offset += buf.length;
}
return target;
};
try {
const bufferUtil = require('bufferutil');
module.exports = Object.assign({ concat }, bufferUtil.BufferUtil || bufferUtil);
} catch (e) /* istanbul ignore next */ {
/**
* Masks a buffer using the given mask.
*
* @param {Buffer} source The buffer to mask
* @param {Buffer} mask The mask to use
* @param {Buffer} output The buffer where to store the result
* @param {Number} offset The offset at which to start writing
* @param {Number} length The number of bytes to mask.
* @public
*/
const mask = (source, mask, output, offset, length) => {
for (var i = 0; i < length; i++) {
output[offset + i] = source[i] ^ mask[i & 3];
}
};const target = Buffer.allocUnsafe(totalLength);
var offset = 0;
for (var i = 0; i < list.length; i++) {
const buf = list[i];
buf.copy(target, offset);
offset += buf.length;
}
return target;
};
try {
const bufferUtil = require('bufferutil');
module.exports = Object.assign({ concat }, bufferUtil.BufferUtil || bufferUtil);
} catch (e) /* istanbul ignore next */ {
/**
* Masks a buffer using the given mask.
*
* @param {Buffer} source The buffer to mask
* @param {Buffer} mask The mask to use
* @param {Buffer} output The buffer where to store the result
* @param {Number} offset The offset at which to start writing
* @param {Number} length The number of bytes to mask.
* @public
*/
const mask = (source, mask, output, offset, length) => {
for (var i = 0; i < length; i++) {
output[offset + i] = source[i] ^ mask[i & 3];
}
};'use strict';
/*!
* ws: a node.js websocket client
* Copyright(c) 2011 Einar Otto Stangvik
* MIT Licensed
*/
try {
const bufferUtil = require('bufferutil');
module.exports = bufferUtil.BufferUtil || bufferUtil;
} catch (e) {
module.exports = require('./BufferUtil.fallback');
}
