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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>
21 lines
786 B
JavaScript
21 lines
786 B
JavaScript
'use strict';
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// Some operating systems report errors when an UDP message is sent to an
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// unreachable host. This error can be reported by sendto() and even by
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// recvfrom(). Node should not propagate this error to the user.
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var common = require('../common');
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var dgram = require('dgram');
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var socket = dgram.createSocket('udp4');
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var buf = Buffer.from([1, 2, 3, 4]);
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function ok() {}
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socket.send(buf, 0, 0, common.PORT, '127.0.0.1', ok); // useful? no
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socket.send(buf, 0, 4, common.PORT, '127.0.0.1', ok);
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socket.send(buf, 1, 3, common.PORT, '127.0.0.1', ok);
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socket.send(buf, 3, 1, common.PORT, '127.0.0.1', ok);
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// Since length of zero means nothing, don't error despite OOB.
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socket.send(buf, 4, 0, common.PORT, '127.0.0.1', ok);
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socket.close(); // FIXME should not be necessary
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