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Using mutex inside RCTUIManagerObserverCoordinator instead of GCD

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Reviewed By: javache

Differential Revision: D5843832

fbshipit-source-id: f4051755a5de83431f8bed1b765b5d8118b5ab88
This commit is contained in:
Valentin Shergin 2017-09-18 13:34:24 -07:00 committed by Facebook Github Bot
parent 6b733a4fe7
commit 38c8b6dd42
3 changed files with 23 additions and 14 deletions
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6
React/Modules/RCTUIManagerObserverCoordinator.h
View File

@ -12,9 +12,11 @@
#import <React/RCTViewManager.h>
/**
* Allows to hook into UIManager internals. This can be used to execute code at
* Allows hooking into UIManager internals. This can be used to execute code at
* specific points during the view updating process.
* All observer handler is called on UIManager queue.
* New observers must not be added inside observer handlers.
* The particular order of handler invocation is not guaranteed.
* All observer handlers are called on UIManager queue.
*/
@protocol RCTUIManagerObserver <NSObject>

19
React/Modules/RCTUIManagerObserverCoordinator.m → React/Modules/RCTUIManagerObserverCoordinator.mm
View File

@ -9,10 +9,13 @@
#import "RCTUIManagerObserverCoordinator.h"
#import <mutex>
#import "RCTUIManager.h"
@implementation RCTUIManagerObserverCoordinator {
NSHashTable<id<RCTUIManagerObserver>> *_observers;
std::mutex _mutex;
}
- (instancetype)init
@ -26,22 +29,22 @@
- (void)addObserver:(id<RCTUIManagerObserver>)observer
{
dispatch_async(RCTGetUIManagerQueue(), ^{
[self->_observers addObject:observer];
});
std::lock_guard<std::mutex> lock(_mutex);
[self->_observers addObject:observer];
}
- (void)removeObserver:(id<RCTUIManagerObserver>)observer
{
dispatch_async(RCTGetUIManagerQueue(), ^{
[self->_observers removeObject:observer];
});
std::lock_guard<std::mutex> lock(_mutex);
[self->_observers removeObject:observer];
}
#pragma mark - RCTUIManagerObserver
- (void)uiManagerWillPerformLayout:(RCTUIManager *)manager
{
std::lock_guard<std::mutex> lock(_mutex);
for (id<RCTUIManagerObserver> observer in _observers) {
if ([observer respondsToSelector:@selector(uiManagerWillPerformLayout:)]) {
[observer uiManagerWillPerformLayout:manager];
@ -51,6 +54,8 @@
- (void)uiManagerDidPerformLayout:(RCTUIManager *)manager
{
std::lock_guard<std::mutex> lock(_mutex);
for (id<RCTUIManagerObserver> observer in _observers) {
if ([observer respondsToSelector:@selector(uiManagerDidPerformLayout:)]) {
[observer uiManagerDidPerformLayout:manager];
@ -60,6 +65,8 @@
- (void)uiManagerWillFlushUIBlocks:(RCTUIManager *)manager
{
std::lock_guard<std::mutex> lock(_mutex);
for (id<RCTUIManagerObserver> observer in _observers) {
if ([observer respondsToSelector:@selector(uiManagerWillFlushUIBlocks:)]) {
[observer uiManagerWillFlushUIBlocks:manager];

12
React/React.xcodeproj/project.pbxproj
View File

@ -1021,8 +1021,8 @@
59B1EBCA1EBD47520047B19B /* RCTShadowView+Layout.h in Copy Headers */ = {isa = PBXBuildFile; fileRef = 590D7BFB1EBD458B00D8A370 /* RCTShadowView+Layout.h */; };
59EB6DBB1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB6DB91EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h */; };
59EB6DBC1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB6DB91EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h */; };
59EB6DBD1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m */; };
59EB6DBE1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m */; };
59EB6DBD1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm in Sources */ = {isa = PBXBuildFile; fileRef = 59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm */; };
59EB6DBE1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm in Sources */ = {isa = PBXBuildFile; fileRef = 59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm */; };
59EB6DBF1EBD6FFC0072A5E7 /* RCTUIManagerObserverCoordinator.h in Copy Headers */ = {isa = PBXBuildFile; fileRef = 59EB6DB91EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h */; };
59EB6DC01EBD70130072A5E7 /* RCTUIManagerObserverCoordinator.h in Copy Headers */ = {isa = PBXBuildFile; fileRef = 59EB6DB91EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h */; };
59FBEFB01E46D91C0095D885 /* RCTScrollContentShadowView.h in Headers */ = {isa = PBXBuildFile; fileRef = 59FBEFAC1E46D91C0095D885 /* RCTScrollContentShadowView.h */; };
@ -1967,7 +1967,7 @@
59A7B9FB1E577DBF0068EDBF /* RCTRootContentView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTRootContentView.h; sourceTree = "<group>"; };
59A7B9FC1E577DBF0068EDBF /* RCTRootContentView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTRootContentView.m; sourceTree = "<group>"; };
59EB6DB91EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTUIManagerObserverCoordinator.h; sourceTree = "<group>"; };
59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTUIManagerObserverCoordinator.m; sourceTree = "<group>"; };
59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = RCTUIManagerObserverCoordinator.mm; sourceTree = "<group>"; };
59FBEFAC1E46D91C0095D885 /* RCTScrollContentShadowView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTScrollContentShadowView.h; sourceTree = "<group>"; };
59FBEFAD1E46D91C0095D885 /* RCTScrollContentShadowView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTScrollContentShadowView.m; sourceTree = "<group>"; };
59FBEFAE1E46D91C0095D885 /* RCTScrollContentViewManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTScrollContentViewManager.h; sourceTree = "<group>"; };
@ -2255,7 +2255,7 @@
13E067481A70F434002CDEE1 /* RCTUIManager.h */,
13E067491A70F434002CDEE1 /* RCTUIManager.m */,
59EB6DB91EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.h */,
59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m */,
59EB6DBA1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm */,
);
path = Modules;
sourceTree = "<group>";
@ -3625,7 +3625,7 @@
2D3B5ED51D9B098000451313 /* RCTModalHostViewController.m in Sources */,
2D3B5EBC1D9B092600451313 /* RCTKeyboardObserver.m in Sources */,
657734931EE8356100A0E9EA /* RCTInspector.mm in Sources */,
59EB6DBE1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m in Sources */,
59EB6DBE1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm in Sources */,
2D3B5E971D9B089000451313 /* RCTBridge.m in Sources */,
2D3B5E9B1D9B08A000451313 /* RCTFrameUpdate.m in Sources */,
2D3B5EE41D9B09BB00451313 /* RCTSegmentedControlManager.m in Sources */,
@ -3884,7 +3884,7 @@
13CC8A821B17642100940AE7 /* RCTBorderDrawing.m in Sources */,
C60128AD1F3D1258009DF9FF /* RCTCxxConvert.m in Sources */,
83CBBA511A601E3B00E9B192 /* RCTAssert.m in Sources */,
59EB6DBD1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.m in Sources */,
59EB6DBD1EBD6FC90072A5E7 /* RCTUIManagerObserverCoordinator.mm in Sources */,
13AF20451AE707F9005F5298 /* RCTSlider.m in Sources */,
130443A21E3FEAA900D93A67 /* RCTFollyConvert.mm in Sources */,
58114A501AAE93D500E7D092 /* RCTAsyncLocalStorage.m in Sources */,