88 lines
3.0 KiB
Objective-C
88 lines
3.0 KiB
Objective-C
// Copyright 2015-present 650 Industries. All rights reserved.
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/**
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* This file is compiled without ARC - the memory needs to be managed by hand.
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*/
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#import <EXDevLauncher/RCTPackagerConnection+EXDevLauncherPackagerConnectionInterceptor.h>
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#import <EXDevLauncher/EXDevLauncherController.h>
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#import <React/RCTReconnectingWebSocket.h>
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#import <objc/runtime.h>
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#import <mutex>
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#if RCT_DEV
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static RCTReconnectingWebSocket *createSocketForURL(NSURL * url)
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{
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NSURLComponents *const components = [NSURLComponents new];
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components.host = [url host];
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components.scheme = @"http";
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components.port = [url port];
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components.path = @"/message";
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components.queryItems = @[[NSURLQueryItem queryItemWithName:@"role" value:@"ios"]];
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static dispatch_queue_t queue;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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queue = dispatch_queue_create("com.facebook.RCTPackagerConnectionQueue", DISPATCH_QUEUE_SERIAL);
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});
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RCTReconnectingWebSocket *webSocket = [[RCTReconnectingWebSocket alloc] initWithURL:components.URL queue:queue];
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[components release];
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return [webSocket autorelease]; // adds to ARC
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}
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@implementation RCTPackagerConnection (EXDevLauncherPackagerConnectionInterceptor)
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/**
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* Sets the WebSocket URL.
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*/
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- (void)setSocketConnectionURL:(NSURL *)url
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{
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// Mutex isn't an objective-c object - [self valueForKey:@"_mutex"] will fail.
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// The other solution requires `object_getInstanceVariable` which doesn't work with ARC.
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// That's the only solution to get private variables that comes from cpp.
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Ivar mutexVar = object_getInstanceVariable(self, "_mutex", NULL);
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ptrdiff_t mutexOffset = ivar_getOffset(mutexVar);
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unsigned char* selfPtr = (unsigned char *)(__bridge void*)self;
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std::mutex *mutex = (std::mutex *)(selfPtr + mutexOffset);
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RCTReconnectingWebSocket *oldSocket = (RCTReconnectingWebSocket *)[self valueForKey:@"_socket"];
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std::lock_guard<std::mutex> l(*mutex);
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if (oldSocket == nil) {
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return; // already stopped
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}
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[self setValue:@NO forKey:@"_socketConnected"];
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oldSocket.delegate = nil;
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[oldSocket stop];
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RCTReconnectingWebSocket *newSocket = createSocketForURL(url);
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newSocket.delegate = (id<RCTReconnectingWebSocketDelegate>)self;
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[newSocket start];
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[self setValue:newSocket forKey:@"_socket"];
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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[[NSNotificationCenter defaultCenter] addObserverForName:@"RCTTriggerReloadCommandNotification"
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object:nil
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queue:[NSOperationQueue mainQueue]
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usingBlock:^(NSNotification *_Nonnull __unused note) {
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
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NSURL *bundleUrl = [EXDevLauncherController sharedInstance].sourceUrl;
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if (bundleUrl && ![bundleUrl.scheme isEqualToString:@"file"]) {
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[self setSocketConnectionURL:bundleUrl];
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}
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});
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}];
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});
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}
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@end
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#endif
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