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85ab4a5f12
Several changes:
* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs
PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
JavaScript
'use strict';
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var common = require('../common');
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var assert = require('assert');
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var fs = require('fs');
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common.refreshTmpDir();
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var stream = fs.createWriteStream(common.tmpDir + '/out', {
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highWaterMark: 10
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});
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var err = new Error('BAM');
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var write = fs.write;
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var writeCalls = 0;
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fs.write = function() {
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switch (writeCalls++) {
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case 0:
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console.error('first write');
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// first time is ok.
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return write.apply(fs, arguments);
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case 1:
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// then it breaks
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console.error('second write');
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var cb = arguments[arguments.length - 1];
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return process.nextTick(function() {
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cb(err);
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});
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default:
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// and should not be called again!
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throw new Error('BOOM!');
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}
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};
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fs.close = common.mustCall(function(fd_, cb) {
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console.error('fs.close', fd_, stream.fd);
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assert.equal(fd_, stream.fd);
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process.nextTick(cb);
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});
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stream.on('error', common.mustCall(function(err_) {
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console.error('error handler');
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assert.equal(stream.fd, null);
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assert.equal(err_, err);
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}));
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stream.write(Buffer.allocUnsafe(256), function() {
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console.error('first cb');
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stream.write(Buffer.allocUnsafe(256), common.mustCall(function(err_) {
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console.error('second cb');
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assert.equal(err_, err);
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}));
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});
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