1098 lines
35 KiB
Objective-C
1098 lines
35 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <Foundation/Foundation.h>
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#import "RCTAssert.h"
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#import "RCTBridge+Private.h"
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#import "RCTBridge.h"
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#import "RCTBridgeMethod.h"
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#import "RCTConvert.h"
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#import "RCTDevLoadingView.h"
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#import "RCTDisplayLink.h"
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#import "RCTJSCExecutor.h"
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#import "RCTJavaScriptLoader.h"
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#import "RCTLog.h"
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#import "RCTModuleData.h"
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#import "RCTPerformanceLogger.h"
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#import "RCTProfile.h"
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#import "RCTRedBox.h"
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#import "RCTUtils.h"
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#define RCTAssertJSThread() \
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RCTAssert(![NSStringFromClass([self->_javaScriptExecutor class]) isEqualToString:@"RCTJSCExecutor"] || \
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[[[NSThread currentThread] name] isEqualToString:RCTJSCThreadName], \
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@"This method must be called on JS thread")
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/**
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* Must be kept in sync with `MessageQueue.js`.
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*/
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typedef NS_ENUM(NSUInteger, RCTBridgeFields) {
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RCTBridgeFieldRequestModuleIDs = 0,
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RCTBridgeFieldMethodIDs,
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RCTBridgeFieldParams,
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RCTBridgeFieldCallID,
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};
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@implementation RCTBatchedBridge
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{
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BOOL _wasBatchActive;
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NSMutableArray<dispatch_block_t> *_pendingCalls;
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NSDictionary<NSString *, RCTModuleData *> *_moduleDataByName;
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NSArray<RCTModuleData *> *_moduleDataByID;
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NSArray<Class> *_moduleClassesByID;
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NSUInteger _modulesInitializedOnMainQueue;
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RCTDisplayLink *_displayLink;
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}
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@synthesize flowID = _flowID;
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@synthesize flowIDMap = _flowIDMap;
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@synthesize flowIDMapLock = _flowIDMapLock;
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@synthesize loading = _loading;
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@synthesize valid = _valid;
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@synthesize performanceLogger = _performanceLogger;
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- (instancetype)initWithParentBridge:(RCTBridge *)bridge
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{
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RCTAssertParam(bridge);
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if (self = [super initWithDelegate:bridge.delegate
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bundleURL:bridge.bundleURL
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moduleProvider:bridge.moduleProvider
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launchOptions:bridge.launchOptions]) {
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_parentBridge = bridge;
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_performanceLogger = [bridge performanceLogger];
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RCTLogInfo(@"Initializing %@ (parent: %@, executor: %@)", self, bridge, [self executorClass]);
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/**
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* Set Initial State
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*/
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_valid = YES;
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_loading = YES;
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_pendingCalls = [NSMutableArray new];
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_displayLink = [RCTDisplayLink new];
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[RCTBridge setCurrentBridge:self];
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}
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return self;
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}
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RCT_NOT_IMPLEMENTED(- (instancetype)initWithDelegate:(id<RCTBridgeDelegate>)delegate
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bundleURL:(NSURL *)bundleURL
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moduleProvider:(RCTBridgeModuleProviderBlock)block
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launchOptions:(NSDictionary *)launchOptions)
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- (void)start
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{
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[[NSNotificationCenter defaultCenter]
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postNotificationName:RCTJavaScriptWillStartLoadingNotification
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object:_parentBridge userInfo:@{@"bridge": self}];
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RCT_PROFILE_BEGIN_EVENT(0, @"-[RCTBatchedBridge setUp]", nil);
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dispatch_queue_t bridgeQueue = dispatch_queue_create("com.facebook.react.RCTBridgeQueue", DISPATCH_QUEUE_CONCURRENT);
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dispatch_group_t initModulesAndLoadSource = dispatch_group_create();
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// Asynchronously load source code
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dispatch_group_enter(initModulesAndLoadSource);
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__weak RCTBatchedBridge *weakSelf = self;
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__block NSData *sourceCode;
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[self loadSource:^(NSError *error, NSData *source, __unused int64_t sourceLength) {
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if (error) {
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RCTLogWarn(@"Failed to load source: %@", error);
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dispatch_async(dispatch_get_main_queue(), ^{
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[weakSelf stopLoadingWithError:error];
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});
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}
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sourceCode = source;
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dispatch_group_leave(initModulesAndLoadSource);
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} onProgress:^(RCTLoadingProgress *progressData) {
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#ifdef RCT_DEV
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RCTDevLoadingView *loadingView = [weakSelf moduleForClass:[RCTDevLoadingView class]];
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[loadingView updateProgress:progressData];
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#endif
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}];
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// Synchronously initialize all native modules that cannot be loaded lazily
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[self initModulesWithDispatchGroup:initModulesAndLoadSource];
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RCTPerformanceLogger *performanceLogger = self->_performanceLogger;
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__block NSString *config;
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dispatch_group_enter(initModulesAndLoadSource);
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dispatch_async(bridgeQueue, ^{
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dispatch_group_t setupJSExecutorAndModuleConfig = dispatch_group_create();
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// Asynchronously initialize the JS executor
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dispatch_group_async(setupJSExecutorAndModuleConfig, bridgeQueue, ^{
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[performanceLogger markStartForTag:RCTPLJSCExecutorSetup];
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[weakSelf setUpExecutor];
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[performanceLogger markStopForTag:RCTPLJSCExecutorSetup];
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});
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// Asynchronously gather the module config
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dispatch_group_async(setupJSExecutorAndModuleConfig, bridgeQueue, ^{
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if (weakSelf.valid) {
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RCT_PROFILE_BEGIN_EVENT(0, @"-[RCTBatchedBridge moduleConfig", nil);
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[performanceLogger markStartForTag:RCTPLNativeModulePrepareConfig];
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config = [weakSelf moduleConfig];
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[performanceLogger markStopForTag:RCTPLNativeModulePrepareConfig];
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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}
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});
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dispatch_group_notify(setupJSExecutorAndModuleConfig, bridgeQueue, ^{
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// We're not waiting for this to complete to leave dispatch group, since
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// injectJSONConfiguration and executeSourceCode will schedule operations
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// on the same queue anyway.
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[performanceLogger markStartForTag:RCTPLNativeModuleInjectConfig];
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[weakSelf injectJSONConfiguration:config onComplete:^(NSError *error) {
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[performanceLogger markStopForTag:RCTPLNativeModuleInjectConfig];
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if (error) {
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RCTLogWarn(@"Failed to inject config: %@", error);
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dispatch_async(dispatch_get_main_queue(), ^{
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[weakSelf stopLoadingWithError:error];
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});
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}
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}];
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dispatch_group_leave(initModulesAndLoadSource);
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});
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});
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dispatch_group_notify(initModulesAndLoadSource, bridgeQueue, ^{
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RCTBatchedBridge *strongSelf = weakSelf;
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if (sourceCode && strongSelf.loading) {
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[strongSelf executeSourceCode:sourceCode];
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}
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});
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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}
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- (void)loadSource:(RCTSourceLoadBlock)_onSourceLoad onProgress:(RCTSourceLoadProgressBlock)onProgress
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{
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[_performanceLogger markStartForTag:RCTPLScriptDownload];
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RCTPerformanceLogger *performanceLogger = _performanceLogger;
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RCTSourceLoadBlock onSourceLoad = ^(NSError *error, NSData *source, int64_t sourceLength) {
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[performanceLogger markStopForTag:RCTPLScriptDownload];
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[performanceLogger setValue:sourceLength forTag:RCTPLBundleSize];
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_onSourceLoad(error, source, sourceLength);
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};
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if ([self.delegate respondsToSelector:@selector(loadSourceForBridge:onProgress:onComplete:)]) {
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[self.delegate loadSourceForBridge:_parentBridge onProgress:onProgress onComplete:onSourceLoad];
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} else if ([self.delegate respondsToSelector:@selector(loadSourceForBridge:withBlock:)]) {
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[self.delegate loadSourceForBridge:_parentBridge withBlock:onSourceLoad];
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} else {
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RCTAssert(self.bundleURL, @"bundleURL must be non-nil when not implementing loadSourceForBridge");
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[RCTJavaScriptLoader loadBundleAtURL:self.bundleURL onProgress:onProgress onComplete:^(NSError *error, NSData *source, int64_t sourceLength) {
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if (error && [self.delegate respondsToSelector:@selector(fallbackSourceURLForBridge:)]) {
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NSURL *fallbackURL = [self.delegate fallbackSourceURLForBridge:self->_parentBridge];
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if (fallbackURL && ![fallbackURL isEqual:self.bundleURL]) {
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RCTLogError(@"Failed to load bundle(%@) with error:(%@)", self.bundleURL, error.localizedDescription);
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self.bundleURL = fallbackURL;
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[RCTJavaScriptLoader loadBundleAtURL:self.bundleURL onProgress:onProgress onComplete:onSourceLoad];
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return;
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}
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}
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onSourceLoad(error, source, sourceLength);
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}];
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}
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}
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- (NSArray<Class> *)moduleClasses
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{
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if (RCT_DEBUG && _valid && _moduleClassesByID == nil) {
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RCTLogError(@"Bridge modules have not yet been initialized. You may be "
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"trying to access a module too early in the startup procedure.");
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}
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return _moduleClassesByID;
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}
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/**
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* Used by RCTUIManager
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*/
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- (RCTModuleData *)moduleDataForName:(NSString *)moduleName
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{
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return _moduleDataByName[moduleName];
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}
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- (id)moduleForName:(NSString *)moduleName
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{
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return _moduleDataByName[moduleName].instance;
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}
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- (BOOL)moduleIsInitialized:(Class)moduleClass
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{
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return _moduleDataByName[RCTBridgeModuleNameForClass(moduleClass)].hasInstance;
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}
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- (NSArray *)configForModuleName:(NSString *)moduleName
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{
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RCTModuleData *moduleData = _moduleDataByName[moduleName];
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if (moduleData) {
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#if RCT_DEV
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if ([self.delegate respondsToSelector:@selector(whitelistedModulesForBridge:)]) {
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NSArray *whitelisted = [self.delegate whitelistedModulesForBridge:self];
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RCTAssert(!whitelisted || [whitelisted containsObject:[moduleData moduleClass]],
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@"Required config for %@, which was not whitelisted", moduleName);
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}
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#endif
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}
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return moduleData.config;
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}
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- (void)initModulesWithDispatchGroup:(dispatch_group_t)dispatchGroup
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{
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RCT_PROFILE_BEGIN_EVENT(0, @"-[RCTBatchedBridge initModules]", nil);
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[_performanceLogger markStartForTag:RCTPLNativeModuleInit];
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NSArray<id<RCTBridgeModule>> *extraModules = nil;
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if (self.delegate) {
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if ([self.delegate respondsToSelector:@selector(extraModulesForBridge:)]) {
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extraModules = [self.delegate extraModulesForBridge:_parentBridge];
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}
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} else if (self.moduleProvider) {
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extraModules = self.moduleProvider();
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}
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#if RCT_DEBUG
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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RCTVerifyAllModulesExported(extraModules);
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});
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#endif
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NSMutableArray<Class> *moduleClassesByID = [NSMutableArray new];
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NSMutableArray<RCTModuleData *> *moduleDataByID = [NSMutableArray new];
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NSMutableDictionary<NSString *, RCTModuleData *> *moduleDataByName = [NSMutableDictionary new];
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// Set up moduleData for pre-initialized module instances
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RCT_PROFILE_BEGIN_EVENT(0, @"extraModules", nil);
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for (id<RCTBridgeModule> module in extraModules) {
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Class moduleClass = [module class];
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NSString *moduleName = RCTBridgeModuleNameForClass(moduleClass);
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if (RCT_DEBUG) {
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// Check for name collisions between preregistered modules
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RCTModuleData *moduleData = moduleDataByName[moduleName];
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if (moduleData) {
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RCTLogError(@"Attempted to register RCTBridgeModule class %@ for the "
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"name '%@', but name was already registered by class %@",
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moduleClass, moduleName, moduleData.moduleClass);
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continue;
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}
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}
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// Instantiate moduleData container
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RCTModuleData *moduleData = [[RCTModuleData alloc] initWithModuleInstance:module
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bridge:self];
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moduleDataByName[moduleName] = moduleData;
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[moduleClassesByID addObject:moduleClass];
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[moduleDataByID addObject:moduleData];
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// Set executor instance
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if (moduleClass == self.executorClass) {
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_javaScriptExecutor = (id<RCTJavaScriptExecutor>)module;
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}
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}
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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// The executor is a bridge module, but we want it to be instantiated before
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// any other module has access to the bridge, in case they need the JS thread.
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// TODO: once we have more fine-grained control of init (t11106126) we can
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// probably just replace this with [self moduleForClass:self.executorClass]
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RCT_PROFILE_BEGIN_EVENT(0, @"JavaScriptExecutor", nil);
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if (!_javaScriptExecutor) {
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id<RCTJavaScriptExecutor> executorModule = [self.executorClass new];
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RCTModuleData *moduleData = [[RCTModuleData alloc] initWithModuleInstance:executorModule
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bridge:self];
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moduleDataByName[moduleData.name] = moduleData;
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[moduleClassesByID addObject:self.executorClass];
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[moduleDataByID addObject:moduleData];
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// NOTE: _javaScriptExecutor is a weak reference
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_javaScriptExecutor = executorModule;
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}
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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// Set up moduleData for automatically-exported modules
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RCT_PROFILE_BEGIN_EVENT(0, @"ModuleData", nil);
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for (Class moduleClass in RCTGetModuleClasses()) {
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NSString *moduleName = RCTBridgeModuleNameForClass(moduleClass);
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// Check for module name collisions
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RCTModuleData *moduleData = moduleDataByName[moduleName];
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if (moduleData) {
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if (moduleData.hasInstance) {
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// Existing module was preregistered, so it takes precedence
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continue;
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} else if ([moduleClass new] == nil) {
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// The new module returned nil from init, so use the old module
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continue;
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} else if ([moduleData.moduleClass new] != nil) {
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// Both modules were non-nil, so it's unclear which should take precedence
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RCTLogError(@"Attempted to register RCTBridgeModule class %@ for the "
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"name '%@', but name was already registered by class %@",
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moduleClass, moduleName, moduleData.moduleClass);
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}
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}
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// Instantiate moduleData (TODO: can we defer this until config generation?)
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moduleData = [[RCTModuleData alloc] initWithModuleClass:moduleClass
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bridge:self];
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moduleDataByName[moduleName] = moduleData;
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[moduleClassesByID addObject:moduleClass];
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[moduleDataByID addObject:moduleData];
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}
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// Store modules
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_moduleDataByID = [moduleDataByID copy];
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_moduleDataByName = [moduleDataByName copy];
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_moduleClassesByID = [moduleClassesByID copy];
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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// Synchronously set up the pre-initialized modules
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RCT_PROFILE_BEGIN_EVENT(0, @"extraModules", nil);
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for (RCTModuleData *moduleData in _moduleDataByID) {
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if (moduleData.hasInstance &&
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(!moduleData.requiresMainQueueSetup || RCTIsMainQueue())) {
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// Modules that were pre-initialized should ideally be set up before
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// bridge init has finished, otherwise the caller may try to access the
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// module directly rather than via `[bridge moduleForClass:]`, which won't
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// trigger the lazy initialization process. If the module cannot safely be
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// set up on the current thread, it will instead be async dispatched
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// to the main thread to be set up in the loop below.
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(void)[moduleData instance];
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}
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}
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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// From this point on, RCTDidInitializeModuleNotification notifications will
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// be sent the first time a module is accessed.
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_moduleSetupComplete = YES;
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[self prepareModulesWithDispatchGroup:dispatchGroup];
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[_performanceLogger markStopForTag:RCTPLNativeModuleInit];
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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}
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- (void)prepareModulesWithDispatchGroup:(dispatch_group_t)dispatchGroup
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{
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RCT_PROFILE_BEGIN_EVENT(0, @"-[RCTBatchedBridge prepareModulesWithDispatch]", nil);
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NSArray<Class> *whitelistedModules = nil;
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if ([self.delegate respondsToSelector:@selector(whitelistedModulesForBridge:)]) {
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whitelistedModules = [self.delegate whitelistedModulesForBridge:self];
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}
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BOOL initializeImmediately = NO;
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if (dispatchGroup == NULL) {
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// If no dispatchGroup is passed in, we must prepare everything immediately.
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// We better be on the right thread too.
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RCTAssertMainQueue();
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initializeImmediately = YES;
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} else if ([self.delegate respondsToSelector:@selector(shouldBridgeInitializeNativeModulesSynchronously:)]) {
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initializeImmediately = [self.delegate shouldBridgeInitializeNativeModulesSynchronously:self];
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}
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// Set up modules that require main thread init or constants export
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for (RCTModuleData *moduleData in _moduleDataByID) {
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if (whitelistedModules && ![whitelistedModules containsObject:[moduleData moduleClass]]) {
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continue;
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}
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if (moduleData.requiresMainQueueSetup || moduleData.hasConstantsToExport) {
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// Modules that need to be set up on the main thread cannot be initialized
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// lazily when required without doing a dispatch_sync to the main thread,
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// which can result in deadlock. To avoid this, we initialize all of these
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// modules on the main thread in parallel with loading the JS code, so
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// they will already be available before they are ever required.
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dispatch_block_t block = ^{
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if (self.valid) {
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[self->_performanceLogger appendStartForTag:RCTPLNativeModuleMainThread];
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(void)[moduleData instance];
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[moduleData gatherConstants];
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[self->_performanceLogger appendStopForTag:RCTPLNativeModuleMainThread];
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}
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};
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if (initializeImmediately && RCTIsMainQueue()) {
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block();
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} else {
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// We've already checked that dispatchGroup is non-null, but this satisifies the
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// Xcode analyzer
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if (dispatchGroup) {
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dispatch_group_async(dispatchGroup, dispatch_get_main_queue(), block);
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}
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}
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_modulesInitializedOnMainQueue++;
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}
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}
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[_performanceLogger setValue:_modulesInitializedOnMainQueue forTag:RCTPLNativeModuleMainThreadUsesCount];
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RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
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}
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- (void)whitelistedModulesDidChange
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{
|
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RCTAssertMainQueue();
|
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[self prepareModulesWithDispatchGroup:NULL];
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}
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- (void)setUpExecutor
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{
|
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[_javaScriptExecutor setUp];
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}
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- (void)registerModuleForFrameUpdates:(id<RCTBridgeModule>)module
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withModuleData:(RCTModuleData *)moduleData
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{
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[_displayLink registerModuleForFrameUpdates:module withModuleData:moduleData];
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}
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- (NSString *)moduleConfig
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{
|
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NSMutableArray<NSArray *> *config = [NSMutableArray new];
|
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for (RCTModuleData *moduleData in _moduleDataByID) {
|
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if (self.executorClass == [RCTJSCExecutor class]) {
|
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[config addObject:@[moduleData.name]];
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} else {
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[config addObject:RCTNullIfNil(moduleData.config)];
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}
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}
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return RCTJSONStringify(@{
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@"remoteModuleConfig": config,
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}, NULL);
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}
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- (void)injectJSONConfiguration:(NSString *)configJSON
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onComplete:(void (^)(NSError *))onComplete
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|
{
|
|
if (!_valid) {
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return;
|
|
}
|
|
|
|
[_javaScriptExecutor injectJSONText:configJSON
|
|
asGlobalObjectNamed:@"__fbBatchedBridgeConfig"
|
|
callback:onComplete];
|
|
}
|
|
|
|
- (void)executeSourceCode:(NSData *)sourceCode
|
|
{
|
|
if (!_valid || !_javaScriptExecutor) {
|
|
return;
|
|
}
|
|
|
|
[self enqueueApplicationScript:sourceCode url:self.bundleURL onComplete:^(NSError *loadError) {
|
|
if (!self->_valid) {
|
|
return;
|
|
}
|
|
|
|
if (loadError) {
|
|
RCTLogWarn(@"Failed to execute source code: %@", [loadError localizedDescription]);
|
|
dispatch_async(dispatch_get_main_queue(), ^{
|
|
[self stopLoadingWithError:loadError];
|
|
});
|
|
return;
|
|
}
|
|
|
|
// Register the display link to start sending js calls after everything is setup
|
|
NSRunLoop *targetRunLoop = [self->_javaScriptExecutor isKindOfClass:[RCTJSCExecutor class]] ? [NSRunLoop currentRunLoop] : [NSRunLoop mainRunLoop];
|
|
[self->_displayLink addToRunLoop:targetRunLoop];
|
|
|
|
// Log metrics about native requires during the bridge startup.
|
|
uint64_t nativeRequiresCount = [self->_performanceLogger valueForTag:RCTPLRAMNativeRequiresCount];
|
|
[self->_performanceLogger setValue:nativeRequiresCount forTag:RCTPLRAMStartupNativeRequiresCount];
|
|
uint64_t nativeRequires = [self->_performanceLogger valueForTag:RCTPLRAMNativeRequires];
|
|
[self->_performanceLogger setValue:nativeRequires forTag:RCTPLRAMStartupNativeRequires];
|
|
|
|
[self->_performanceLogger markStopForTag:RCTPLBridgeStartup];
|
|
|
|
// Perform the notification on the main thread, so we can't run into
|
|
// timing issues with RCTRootView
|
|
dispatch_async(dispatch_get_main_queue(), ^{
|
|
[[NSNotificationCenter defaultCenter]
|
|
postNotificationName:RCTJavaScriptDidLoadNotification
|
|
object:self->_parentBridge userInfo:@{@"bridge": self}];
|
|
});
|
|
|
|
[self _flushPendingCalls];
|
|
}];
|
|
|
|
#if RCT_DEV
|
|
if ([RCTGetURLQueryParam(self.bundleURL, @"hot") boolValue]) {
|
|
NSString *path = [self.bundleURL.path substringFromIndex:1]; // strip initial slash
|
|
NSString *host = self.bundleURL.host;
|
|
NSNumber *port = self.bundleURL.port;
|
|
[self enqueueJSCall:@"HMRClient"
|
|
method:@"enable"
|
|
args:@[@"ios", path, host, RCTNullIfNil(port)]
|
|
completion:NULL];
|
|
}
|
|
#endif
|
|
}
|
|
|
|
- (void)_flushPendingCalls
|
|
{
|
|
RCTAssertJSThread();
|
|
|
|
RCT_PROFILE_BEGIN_EVENT(0, @"Processing pendingCalls", @{ @"count": @(_pendingCalls.count) });
|
|
_loading = NO;
|
|
NSArray *pendingCalls = _pendingCalls;
|
|
_pendingCalls = nil;
|
|
for (dispatch_block_t call in pendingCalls) {
|
|
call();
|
|
}
|
|
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
|
|
}
|
|
|
|
- (void)stopLoadingWithError:(NSError *)error
|
|
{
|
|
RCTAssertMainQueue();
|
|
|
|
if (!_valid || !_loading) {
|
|
return;
|
|
}
|
|
|
|
_loading = NO;
|
|
[_javaScriptExecutor invalidate];
|
|
|
|
[[NSNotificationCenter defaultCenter]
|
|
postNotificationName:RCTJavaScriptDidFailToLoadNotification
|
|
object:_parentBridge userInfo:@{@"bridge": self, @"error": error}];
|
|
|
|
if ([error userInfo][RCTJSStackTraceKey]) {
|
|
[self.redBox showErrorMessage:[error localizedDescription]
|
|
withStack:[error userInfo][RCTJSStackTraceKey]];
|
|
}
|
|
RCTFatal(error);
|
|
}
|
|
|
|
RCT_NOT_IMPLEMENTED(- (instancetype)initWithBundleURL:(__unused NSURL *)bundleURL
|
|
moduleProvider:(__unused RCTBridgeModuleProviderBlock)block
|
|
launchOptions:(__unused NSDictionary *)launchOptions)
|
|
|
|
/**
|
|
* Prevent super from calling setUp (that'd create another batchedBridge)
|
|
*/
|
|
- (void)setUp {}
|
|
- (void)bindKeys {}
|
|
|
|
- (void)reload
|
|
{
|
|
[_parentBridge reload];
|
|
}
|
|
|
|
- (void)requestReload
|
|
{
|
|
[_parentBridge requestReload];
|
|
}
|
|
|
|
- (Class)executorClass
|
|
{
|
|
return _parentBridge.executorClass ?: [RCTJSCExecutor class];
|
|
}
|
|
|
|
- (void)setExecutorClass:(Class)executorClass
|
|
{
|
|
RCTAssertMainQueue();
|
|
|
|
_parentBridge.executorClass = executorClass;
|
|
}
|
|
|
|
- (NSURL *)bundleURL
|
|
{
|
|
return _parentBridge.bundleURL;
|
|
}
|
|
|
|
- (void)setBundleURL:(NSURL *)bundleURL
|
|
{
|
|
_parentBridge.bundleURL = bundleURL;
|
|
}
|
|
|
|
- (id<RCTBridgeDelegate>)delegate
|
|
{
|
|
return _parentBridge.delegate;
|
|
}
|
|
|
|
- (BOOL)isLoading
|
|
{
|
|
return _loading;
|
|
}
|
|
|
|
- (BOOL)isValid
|
|
{
|
|
return _valid;
|
|
}
|
|
|
|
- (void)dispatchBlock:(dispatch_block_t)block
|
|
queue:(dispatch_queue_t)queue
|
|
{
|
|
if (queue == RCTJSThread) {
|
|
RCTProfileBeginFlowEvent();
|
|
RCTAssert(_javaScriptExecutor != nil, @"Need JS executor to schedule JS work");
|
|
|
|
[_javaScriptExecutor executeBlockOnJavaScriptQueue:^{
|
|
RCTProfileEndFlowEvent();
|
|
|
|
RCT_PROFILE_BEGIN_EVENT(0, @"-[RCTBatchedBridge dispatchBlock", @{ @"loading": @(self.loading) });
|
|
|
|
if (self.loading) {
|
|
RCTAssert(self->_pendingCalls != nil, @"Can't add pending call, bridge is no longer loading");
|
|
[self->_pendingCalls addObject:block];
|
|
} else {
|
|
block();
|
|
}
|
|
|
|
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
|
|
}];
|
|
} else if (queue) {
|
|
dispatch_async(queue, block);
|
|
}
|
|
}
|
|
|
|
#pragma mark - RCTInvalidating
|
|
|
|
- (void)invalidate
|
|
{
|
|
if (!_valid) {
|
|
return;
|
|
}
|
|
|
|
RCTAssertMainQueue();
|
|
RCTAssert(_javaScriptExecutor != nil, @"Can't complete invalidation without a JS executor");
|
|
|
|
_loading = NO;
|
|
_valid = NO;
|
|
if ([RCTBridge currentBridge] == self) {
|
|
[RCTBridge setCurrentBridge:nil];
|
|
}
|
|
|
|
// Invalidate modules
|
|
dispatch_group_t group = dispatch_group_create();
|
|
for (RCTModuleData *moduleData in _moduleDataByID) {
|
|
// Be careful when grabbing an instance here, we don't want to instantiate
|
|
// any modules just to invalidate them.
|
|
id<RCTBridgeModule> instance = nil;
|
|
if ([moduleData hasInstance]) {
|
|
instance = moduleData.instance;
|
|
}
|
|
|
|
if (instance == _javaScriptExecutor) {
|
|
continue;
|
|
}
|
|
|
|
if ([instance respondsToSelector:@selector(invalidate)]) {
|
|
dispatch_group_enter(group);
|
|
[self dispatchBlock:^{
|
|
[(id<RCTInvalidating>)instance invalidate];
|
|
dispatch_group_leave(group);
|
|
} queue:moduleData.methodQueue];
|
|
}
|
|
[moduleData invalidate];
|
|
}
|
|
|
|
dispatch_group_notify(group, dispatch_get_main_queue(), ^{
|
|
[self->_javaScriptExecutor executeBlockOnJavaScriptQueue:^{
|
|
[self->_displayLink invalidate];
|
|
self->_displayLink = nil;
|
|
|
|
[self->_javaScriptExecutor invalidate];
|
|
self->_javaScriptExecutor = nil;
|
|
|
|
if (RCTProfileIsProfiling()) {
|
|
RCTProfileUnhookModules(self);
|
|
}
|
|
|
|
self->_moduleDataByName = nil;
|
|
self->_moduleDataByID = nil;
|
|
self->_moduleClassesByID = nil;
|
|
self->_pendingCalls = nil;
|
|
|
|
if (self->_flowIDMap != NULL) {
|
|
CFRelease(self->_flowIDMap);
|
|
}
|
|
}];
|
|
});
|
|
}
|
|
|
|
- (void)logMessage:(NSString *)message level:(NSString *)level
|
|
{
|
|
if (RCT_DEBUG && [_javaScriptExecutor isValid]) {
|
|
[self enqueueJSCall:@"RCTLog"
|
|
method:@"logIfNoNativeHook"
|
|
args:@[level, message]
|
|
completion:NULL];
|
|
}
|
|
}
|
|
|
|
#pragma mark - RCTBridge methods
|
|
|
|
/**
|
|
* Public. Can be invoked from any thread.
|
|
*/
|
|
- (void)enqueueJSCall:(NSString *)module method:(NSString *)method args:(NSArray *)args completion:(dispatch_block_t)completion
|
|
{
|
|
/**
|
|
* AnyThread
|
|
*/
|
|
if (!_valid) {
|
|
return;
|
|
}
|
|
|
|
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTBatchedBridge enqueueJSCall:]", nil);
|
|
__weak __typeof(self) weakSelf = self;
|
|
[self dispatchBlock:^{
|
|
[weakSelf _actuallyInvokeAndProcessModule:module method:method arguments:args ?: @[]];
|
|
if (completion) {
|
|
completion();
|
|
}
|
|
} queue:RCTJSThread];
|
|
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
|
|
}
|
|
|
|
/**
|
|
* Called by RCTModuleMethod from any thread.
|
|
*/
|
|
- (void)enqueueCallback:(NSNumber *)cbID args:(NSArray *)args
|
|
{
|
|
/**
|
|
* AnyThread
|
|
*/
|
|
if (!_valid) {
|
|
return;
|
|
}
|
|
|
|
__weak __typeof(self) weakSelf = self;
|
|
[self dispatchBlock:^{
|
|
[weakSelf _actuallyInvokeCallback:cbID arguments:args];
|
|
} queue:RCTJSThread];
|
|
}
|
|
|
|
/**
|
|
* JS thread only
|
|
*/
|
|
- (JSValue *)callFunctionOnModule:(NSString *)module
|
|
method:(NSString *)method
|
|
arguments:(NSArray *)arguments
|
|
error:(NSError **)error
|
|
{
|
|
RCTJSCExecutor *jsExecutor = (RCTJSCExecutor *)_javaScriptExecutor;
|
|
if (![jsExecutor isKindOfClass:[RCTJSCExecutor class]]) {
|
|
RCTLogWarn(@"FBReactBridgeJSExecutor is only supported when running in JSC");
|
|
return nil;
|
|
}
|
|
|
|
__block JSValue *jsResult = nil;
|
|
|
|
RCTAssertJSThread();
|
|
RCT_PROFILE_BEGIN_EVENT(0, @"callFunctionOnModule", (@{ @"module": module, @"method": method }));
|
|
[jsExecutor callFunctionOnModule:module
|
|
method:method
|
|
arguments:arguments ?: @[]
|
|
jsValueCallback:^(JSValue *result, NSError *jsError) {
|
|
if (error) {
|
|
*error = jsError;
|
|
}
|
|
|
|
JSValue *length = result[@"length"];
|
|
RCTAssert([length isNumber] && [length toUInt32] == 2,
|
|
@"Return value of a callFunction must be an array of size 2");
|
|
|
|
jsResult = [result valueAtIndex:0];
|
|
|
|
NSArray *nativeModuleCalls = [[result valueAtIndex:1] toArray];
|
|
[self handleBuffer:nativeModuleCalls batchEnded:YES];
|
|
}];
|
|
|
|
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"js_call");
|
|
|
|
return jsResult;
|
|
}
|
|
|
|
|
|
/**
|
|
* Private hack to support `setTimeout(fn, 0)`
|
|
*/
|
|
- (void)_immediatelyCallTimer:(NSNumber *)timer
|
|
{
|
|
RCTAssertJSThread();
|
|
[_javaScriptExecutor executeAsyncBlockOnJavaScriptQueue:^{
|
|
[self _actuallyInvokeAndProcessModule:@"JSTimersExecution"
|
|
method:@"callTimers"
|
|
arguments:@[@[timer]]];
|
|
}];
|
|
}
|
|
|
|
- (void)enqueueApplicationScript:(NSData *)script
|
|
url:(NSURL *)url
|
|
onComplete:(RCTJavaScriptCompleteBlock)onComplete
|
|
{
|
|
RCTAssert(onComplete != nil, @"onComplete block passed in should be non-nil");
|
|
|
|
RCTProfileBeginFlowEvent();
|
|
[_javaScriptExecutor executeApplicationScript:script sourceURL:url onComplete:^(NSError *scriptLoadError) {
|
|
RCTProfileEndFlowEvent();
|
|
RCTAssertJSThread();
|
|
|
|
if (scriptLoadError) {
|
|
onComplete(scriptLoadError);
|
|
return;
|
|
}
|
|
|
|
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"FetchApplicationScriptCallbacks", nil);
|
|
[self->_javaScriptExecutor flushedQueue:^(id json, NSError *error)
|
|
{
|
|
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"js_call,init");
|
|
[self handleBuffer:json batchEnded:YES];
|
|
onComplete(error);
|
|
}];
|
|
}];
|
|
}
|
|
|
|
#pragma mark - Payload Generation
|
|
|
|
- (void)_actuallyInvokeAndProcessModule:(NSString *)module
|
|
method:(NSString *)method
|
|
arguments:(NSArray *)args
|
|
{
|
|
RCTAssertJSThread();
|
|
|
|
__weak __typeof(self) weakSelf = self;
|
|
[_javaScriptExecutor callFunctionOnModule:module
|
|
method:method
|
|
arguments:args
|
|
callback:^(id json, NSError *error) {
|
|
[weakSelf _processResponse:json error:error];
|
|
}];
|
|
}
|
|
|
|
- (void)_actuallyInvokeCallback:(NSNumber *)cbID
|
|
arguments:(NSArray *)args
|
|
{
|
|
RCTAssertJSThread();
|
|
|
|
__weak __typeof(self) weakSelf = self;
|
|
[_javaScriptExecutor invokeCallbackID:cbID
|
|
arguments:args
|
|
callback:^(id json, NSError *error) {
|
|
[weakSelf _processResponse:json error:error];
|
|
}];
|
|
}
|
|
|
|
- (void)_processResponse:(id)json error:(NSError *)error
|
|
{
|
|
if (error) {
|
|
if ([error userInfo][RCTJSStackTraceKey]) {
|
|
[self.redBox showErrorMessage:[error localizedDescription]
|
|
withStack:[error userInfo][RCTJSStackTraceKey]];
|
|
}
|
|
RCTFatal(error);
|
|
}
|
|
|
|
if (!_valid) {
|
|
return;
|
|
}
|
|
[self handleBuffer:json batchEnded:YES];
|
|
}
|
|
|
|
#pragma mark - Payload Processing
|
|
|
|
- (void)handleBuffer:(id)buffer batchEnded:(BOOL)batchEnded
|
|
{
|
|
RCTAssertJSThread();
|
|
|
|
if (buffer != nil && buffer != (id)kCFNull) {
|
|
_wasBatchActive = YES;
|
|
[self handleBuffer:buffer];
|
|
[self partialBatchDidFlush];
|
|
}
|
|
|
|
if (batchEnded) {
|
|
if (_wasBatchActive) {
|
|
[self batchDidComplete];
|
|
}
|
|
|
|
_wasBatchActive = NO;
|
|
}
|
|
}
|
|
|
|
- (void)handleBuffer:(NSArray *)buffer
|
|
{
|
|
NSArray *requestsArray = [RCTConvert NSArray:buffer];
|
|
|
|
if (RCT_DEBUG && requestsArray.count <= RCTBridgeFieldParams) {
|
|
RCTLogError(@"Buffer should contain at least %tu sub-arrays. Only found %tu",
|
|
RCTBridgeFieldParams + 1, requestsArray.count);
|
|
return;
|
|
}
|
|
|
|
NSArray<NSNumber *> *moduleIDs = [RCTConvert NSNumberArray:requestsArray[RCTBridgeFieldRequestModuleIDs]];
|
|
NSArray<NSNumber *> *methodIDs = [RCTConvert NSNumberArray:requestsArray[RCTBridgeFieldMethodIDs]];
|
|
NSArray<NSArray *> *paramsArrays = [RCTConvert NSArrayArray:requestsArray[RCTBridgeFieldParams]];
|
|
|
|
int64_t callID = -1;
|
|
|
|
if (requestsArray.count > 3) {
|
|
callID = [requestsArray[RCTBridgeFieldCallID] longLongValue];
|
|
}
|
|
|
|
if (RCT_DEBUG && (moduleIDs.count != methodIDs.count || moduleIDs.count != paramsArrays.count)) {
|
|
RCTLogError(@"Invalid data message - all must be length: %zd", moduleIDs.count);
|
|
return;
|
|
}
|
|
|
|
NSMapTable *buckets = [[NSMapTable alloc] initWithKeyOptions:NSPointerFunctionsStrongMemory
|
|
valueOptions:NSPointerFunctionsStrongMemory
|
|
capacity:_moduleDataByName.count];
|
|
|
|
[moduleIDs enumerateObjectsUsingBlock:^(NSNumber *moduleID, NSUInteger i, __unused BOOL *stop) {
|
|
RCTModuleData *moduleData = self->_moduleDataByID[moduleID.integerValue];
|
|
dispatch_queue_t queue = moduleData.methodQueue;
|
|
NSMutableOrderedSet<NSNumber *> *set = [buckets objectForKey:queue];
|
|
if (!set) {
|
|
set = [NSMutableOrderedSet new];
|
|
[buckets setObject:set forKey:queue];
|
|
}
|
|
[set addObject:@(i)];
|
|
}];
|
|
|
|
for (dispatch_queue_t queue in buckets) {
|
|
RCTProfileBeginFlowEvent();
|
|
|
|
dispatch_block_t block = ^{
|
|
RCTProfileEndFlowEvent();
|
|
|
|
NSOrderedSet *calls = [buckets objectForKey:queue];
|
|
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTBatchedBridge handleBuffer:]", (@{
|
|
@"calls": @(calls.count),
|
|
}));
|
|
|
|
@autoreleasepool {
|
|
for (NSNumber *indexObj in calls) {
|
|
NSUInteger index = indexObj.unsignedIntegerValue;
|
|
#if RCT_PROFILE
|
|
if (RCT_DEV && callID != -1 && self->_flowIDMap != NULL && RCTProfileIsProfiling()) {
|
|
[self.flowIDMapLock lock];
|
|
NSUInteger newFlowID = (NSUInteger)CFDictionaryGetValue(self->_flowIDMap, (const void *)(self->_flowID + index));
|
|
_RCTProfileEndFlowEvent(newFlowID);
|
|
CFDictionaryRemoveValue(self->_flowIDMap, (const void *)(self->_flowID + index));
|
|
[self.flowIDMapLock unlock];
|
|
}
|
|
#endif
|
|
[self callNativeModule:[moduleIDs[index] integerValue]
|
|
method:[methodIDs[index] integerValue]
|
|
params:paramsArrays[index]];
|
|
}
|
|
}
|
|
|
|
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"objc_call,dispatch_async");
|
|
};
|
|
|
|
[self dispatchBlock:block queue:queue];
|
|
}
|
|
|
|
_flowID = callID;
|
|
}
|
|
|
|
- (void)partialBatchDidFlush
|
|
{
|
|
for (RCTModuleData *moduleData in _moduleDataByID) {
|
|
if (moduleData.hasInstance && moduleData.implementsPartialBatchDidFlush) {
|
|
[self dispatchBlock:^{
|
|
[moduleData.instance partialBatchDidFlush];
|
|
} queue:moduleData.methodQueue];
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void)batchDidComplete
|
|
{
|
|
// TODO: batchDidComplete is only used by RCTUIManager - can we eliminate this special case?
|
|
for (RCTModuleData *moduleData in _moduleDataByID) {
|
|
if (moduleData.hasInstance && moduleData.implementsBatchDidComplete) {
|
|
[self dispatchBlock:^{
|
|
[moduleData.instance batchDidComplete];
|
|
} queue:moduleData.methodQueue];
|
|
}
|
|
}
|
|
}
|
|
|
|
- (id)callNativeModule:(NSUInteger)moduleID
|
|
method:(NSUInteger)methodID
|
|
params:(NSArray *)params
|
|
{
|
|
if (!_valid) {
|
|
return nil;
|
|
}
|
|
|
|
RCTModuleData *moduleData = _moduleDataByID[moduleID];
|
|
if (RCT_DEBUG && !moduleData) {
|
|
RCTLogError(@"No module found for id '%zd'", moduleID);
|
|
return nil;
|
|
}
|
|
|
|
id<RCTBridgeMethod> method = moduleData.methods[methodID];
|
|
if (RCT_DEBUG && !method) {
|
|
RCTLogError(@"Unknown methodID: %zd for module: %zd (%@)", methodID, moduleID, moduleData.name);
|
|
return nil;
|
|
}
|
|
|
|
@try {
|
|
return [method invokeWithBridge:self module:moduleData.instance arguments:params];
|
|
}
|
|
@catch (NSException *exception) {
|
|
// Pass on JS exceptions
|
|
if ([exception.name hasPrefix:RCTFatalExceptionName]) {
|
|
@throw exception;
|
|
}
|
|
|
|
NSString *message = [NSString stringWithFormat:
|
|
@"Exception '%@' was thrown while invoking %@ on target %@ with params %@",
|
|
exception, method.JSMethodName, moduleData.name, params];
|
|
RCTFatal(RCTErrorWithMessage(message));
|
|
return nil;
|
|
}
|
|
}
|
|
|
|
- (void)startProfiling
|
|
{
|
|
RCTAssertMainQueue();
|
|
|
|
[_javaScriptExecutor executeBlockOnJavaScriptQueue:^{
|
|
RCTProfileInit(self);
|
|
}];
|
|
}
|
|
|
|
- (void)stopProfiling:(void (^)(NSData *))callback
|
|
{
|
|
RCTAssertMainQueue();
|
|
|
|
[_javaScriptExecutor executeBlockOnJavaScriptQueue:^{
|
|
RCTProfileEnd(self, ^(NSString *log) {
|
|
NSData *logData = [log dataUsingEncoding:NSUTF8StringEncoding];
|
|
callback(logData);
|
|
});
|
|
}];
|
|
}
|
|
|
|
- (BOOL)isBatchActive
|
|
{
|
|
return _wasBatchActive;
|
|
}
|
|
|
|
@end
|