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benchmark: fix dgram/bind-params.js benchmark

`benchmark/dgram/bind-params` exits with an error frequently in its
current form because no error handler is applied. Add no-op error
handlers to avoid the problem.

```console
$ node benchmark/run.js --filter bind-params dgram

dgram/bind-params.js
dgram/bind-params.js address="true" port="true" n=10000:
193,347.42178656923
events.js:182
      throw er; // Unhandled 'error' event
      ^

Error: bind ENFILE 0.0.0.0
    at Object._errnoException (util.js:1041:11)
    at _exceptionWithHostPort (util.js:1064:20)
    at _handle.lookup (dgram.js:242:18)
    at _combinedTickCallback (internal/process/next_tick.js:141:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
    at Function.Module.runMain (module.js:611:11)
    at startup (bootstrap_node.js:158:16)
    at bootstrap_node.js:598:3
$
```

PR-URL: #14948
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Trott authored and MylesBorins committed Aug 19, 2017
1 parent 66dd898 commit a8b917ee2fc493f6da1254a9747dc9454c61dc27
Showing with 12 additions and 3 deletions.
  1. +12 −3 benchmark/dgram/bind-params.js
@@ -10,6 +10,7 @@ const configs = {
};
const bench = common.createBenchmark(main, configs);
const noop = () => {};
function main(conf) {
const n = +conf.n;
@@ -19,19 +20,27 @@ function main(conf) {
if (port !== undefined && address !== undefined) {
bench.start();
for (let i = 0; i < n; i++) {
dgram.createSocket('udp4').bind(port, address).unref();
dgram.createSocket('udp4').bind(port, address)
.on('error', noop)
.unref();
}
bench.end(n);
} else if (port !== undefined) {
bench.start();
for (let i = 0; i < n; i++) {
dgram.createSocket('udp4').bind(port).unref();
dgram.createSocket('udp4')
.bind(port)
.on('error', noop)
.unref();
}
bench.end(n);
} else if (port === undefined && address === undefined) {
bench.start();
for (let i = 0; i < n; i++) {
dgram.createSocket('udp4').bind().unref();
dgram.createSocket('udp4')
.bind()
.on('error', noop)
.unref();
}
bench.end(n);
}

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