e2m/uWebSockets.js
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Expose us_socket_local_port (#547)

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Usage:
```ts
const token: us_socket_t;
const port = uWS.us_socket_local_port(token);
```
This commit is contained in:
Matt Moran 2021-06-09 21:08:31 +12:00 committed by GitHub
parent 6d88f857d0
commit 9b3efbdfa3
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2 changed files with 27 additions and 0 deletions
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20
examples/AutomaticPortSelection.js vendored Normal file
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@ -0,0 +1,20 @@
/* Same as HelloWorld, but with automatic port selection. */
const uWS = require('../dist/uws.js');
let port = 0;
const app = uWS./*SSL*/App({
key_file_name: 'misc/key.pem',
cert_file_name: 'misc/cert.pem',
passphrase: '1234'
}).get('/*', (res, req) => {
res.end('Hello World!');
}).listen(port, (token) => {
if (token) {
// retrieve listening port
port = uWS.us_socket_local_port(token);
console.log('Listening to port ' + port);
} else {
console.log('Failed finding available port');
}
});

7
src/addon.cpp
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@ -127,6 +127,12 @@ void uWS_us_listen_socket_close(const FunctionCallbackInfo<Value> &args) {
us_listen_socket_close(0, (struct us_listen_socket_t *) External::Cast(*args[0])->Value());
}
void uWS_us_socket_local_port(const FunctionCallbackInfo<Value> &args) {
// this should take int ssl first, but us_socket_local_port doesn't use it so it doesn't matter
int port = us_socket_local_port(0, (struct us_socket_t *) External::Cast(*args[0])->Value());
args.GetReturnValue().Set(Integer::New(args.GetIsolate(), port));
}
/* Temporary KV store (doesn't belong here) */
#include <unordered_map>
#include <string>
@ -365,6 +371,7 @@ PerContextData *Main(Local<Object> exports) {
/* Expose some µSockets functions directly under uWS namespace */
exports->Set(isolate->GetCurrentContext(), String::NewFromUtf8(isolate, "us_listen_socket_close", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_us_listen_socket_close)->GetFunction(isolate->GetCurrentContext()).ToLocalChecked()).ToChecked();
exports->Set(isolate->GetCurrentContext(), String::NewFromUtf8(isolate, "us_socket_local_port", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_us_socket_local_port)->GetFunction(isolate->GetCurrentContext()).ToLocalChecked()).ToChecked();
/* Compression enum */
exports->Set(isolate->GetCurrentContext(), String::NewFromUtf8(isolate, "DISABLED", NewStringType::kNormal).ToLocalChecked(), Integer::NewFromUnsigned(isolate, uWS::DISABLED)).ToChecked();