1
|
var root = require('./_root');
|
2
|
|
3
|
/** Detect free variable `exports`. */
|
4
|
var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
|
5
|
|
6
|
/** Detect free variable `module`. */
|
7
|
var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
|
8
|
|
9
|
/** Detect the popular CommonJS extension `module.exports`. */
|
10
|
var moduleExports = freeModule && freeModule.exports === freeExports;
|
11
|
|
12
|
/** Built-in value references. */
|
13
|
var Buffer = moduleExports ? root.Buffer : undefined,
|
14
|
allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;
|
15
|
|
16
|
/**
|
17
|
* Creates a clone of `buffer`.
|
18
|
*
|
19
|
* @private
|
20
|
* @param {Buffer} buffer The buffer to clone.
|
21
|
* @param {boolean} [isDeep] Specify a deep clone.
|
22
|
* @returns {Buffer} Returns the cloned buffer.
|
23
|
*/
|
24
|
function cloneBuffer(buffer, isDeep) {
|
25
|
if (isDeep) {
|
26
|
return buffer.slice();
|
27
|
}
|
28
|
var length = buffer.length,
|
29
|
result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
|
30
|
|
31
|
buffer.copy(result);
|
32
|
return result;
|
33
|
}
|
34
|
|
35
|
module.exports = cloneBuffer;
|