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Make startup errors in the websocket executor invalidate the bridge

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Reviewed By: mhorowitz

Differential Revision: D5226936

fbshipit-source-id: b6d605974674d0e6f86559f2583553e3636d389b
This commit is contained in:
Pieter De Baets 2017-06-22 08:17:03 -07:00 committed by Facebook Github Bot
parent 502604074c
commit c5004d5dd0
2 changed files with 13 additions and 1 deletions
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8
Libraries/WebSocket/RCTWebSocketExecutor.m
View File

@ -172,6 +172,11 @@ RCT_EXPORT_MODULE()
- (void)executeApplicationScript:(NSData *)script sourceURL:(NSURL *)URL onComplete:(RCTJavaScriptCompleteBlock)onComplete
{
// Hack: the bridge transitions out of loading state as soon as this method returns, which prevents us
// from completely invalidating the bridge and preventing an endless barage of RCTLog.logIfNoNativeHook
// calls if the JS execution environment is broken. We therefore block this thread until this message has returned.
dispatch_semaphore_t scriptSem = dispatch_semaphore_create(0);
NSDictionary<NSString *, id> *message = @{
@"method": @"executeApplicationScript",
@"url": RCTNullIfNil(URL.absoluteString),
@ -184,7 +189,10 @@ RCT_EXPORT_MODULE()
NSString *error = reply[@"error"];
onComplete(error ? RCTErrorWithMessage(error) : nil);
}
dispatch_semaphore_signal(scriptSem);
}];
dispatch_semaphore_wait(scriptSem, DISPATCH_TIME_FOREVER);
}
- (void)flushedQueue:(RCTJavaScriptCallback)onComplete

6
React/CxxBridge/RCTCxxBridge.mm
View File

@ -1010,7 +1010,11 @@ RCT_NOT_IMPLEMENTED(- (instancetype)initWithBundleURL:(__unused NSURL *)bundleUR
// ensureOnJavaScriptThread may execute immediately, so use jsMessageThread, to make sure
// the block is invoked after callJSFunction
if (completion) {
self->_jsMessageThread->runOnQueue(completion);
if (self->_jsMessageThread) {
self->_jsMessageThread->runOnQueue(completion);
} else {
RCTLogWarn(@"Can't invoke completion without messageThread");
}
}
}
}];