Attachment #386618 for bug #205687

View Details Raw Unified Return to Bug 205687

| Differences between



2020-01-02  Chris Dumez  <cdumez@apple.com>

        [iOS] Replace "unexpectedly resumed" observer with RunningBoard suspendible assertions
        https://bugs.webkit.org/show_bug.cgi?id=205687
        <rdar://problem/57890246>

        Reviewed by NOBODY (OOPS!).

        Adopt new RunningBoard process assertion to indicate that WebContent processes depend on their
        UIProcess (and therefore, the UIProcess must be running if the WebContent process is). This
        replaces our "Unexpectedly resumed" assertion which was causing unexpected terminations in some
        cases.

        * Configurations/WebKit.xcconfig:
        * Platform/spi/ios/RunningBoardServicesSPI.h: Added.
        * Scripts/process-entitlements.sh:
        * Shared/DependencyProcessAssertion.cpp: Added.
        (WebKit::DependencyProcessAssertion::DependencyProcessAssertion):
        (WebKit::DependencyProcessAssertion::~DependencyProcessAssertion):
        * Shared/DependencyProcessAssertion.h: Added.
        * Shared/ios/DependencyProcessAssertionIOS.mm: Added.
        (WebKit::DependencyProcessAssertion::DependencyProcessAssertion):
        (WebKit::DependencyProcessAssertion::~DependencyProcessAssertion):
        * Sources.txt:
        * SourcesCocoa.txt:
        * UIProcess/Cocoa/WebProcessProxyCocoa.mm:
        * UIProcess/WebProcessProxy.h:
        * UIProcess/WebProcessProxy.messages.in:
        * WebKit.xcodeproj/project.pbxproj:
        * WebProcess/WebProcess.cpp:
        (WebKit::WebProcess::initializeConnection):
        * WebProcess/WebProcess.h:
        * WebProcess/cocoa/WebProcessCocoa.mm:

2020-01-02  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Make ondemand hardware acceleration policy never leave AC mode

Lines 51-56 WK_APPKIT_LDFLAGS_maccatalyst = -framework AppKit; a/Source/WebKit/Configurations/WebKit.xcconfig_sec1
- a/Source/WebKit/Configurations/WebKit.xcconfig -1 / +4 lines
51	WK_ASSERTION_SERVICES_LDFLAGS = $(WK_ASSERTION_SERVICES_LDFLAGS_$(WK_COCOA_TOUCH));	51	WK_ASSERTION_SERVICES_LDFLAGS = $(WK_ASSERTION_SERVICES_LDFLAGS_$(WK_COCOA_TOUCH));
52	WK_ASSERTION_SERVICES_LDFLAGS_cocoatouch = -framework AssertionServices;	52	WK_ASSERTION_SERVICES_LDFLAGS_cocoatouch = -framework AssertionServices;
53		53
		54	WK_RUNNINGBOARD_SERVICES_LDFLAGS = $(WK_RUNNINGBOARD_SERVICES_LDFLAGS_$(WK_COCOA_TOUCH));
		55	WK_RUNNINGBOARD_SERVICES_LDFLAGS_cocoatouch = -framework RunningBoardServices;
		56
54	WK_CARBON_LDFLAGS = $(WK_CARBON_LDFLAGS_$(WK_PLATFORM_NAME));	57	WK_CARBON_LDFLAGS = $(WK_CARBON_LDFLAGS_$(WK_PLATFORM_NAME));
55	WK_CARBON_LDFLAGS_macosx = -framework Carbon;	58	WK_CARBON_LDFLAGS_macosx = -framework Carbon;
56		59
Lines 127-133 WK_AUTHKIT_LDFLAGS_IOS_SINCE_13 = -framework AuthKit; a/Source/WebKit/Configurations/WebKit.xcconfig_sec2
127	WK_AUTHKIT_LDFLAGS_macosx = $(WK_AUTHKIT_LDFLAGS$(WK_MACOS_1015));	130	WK_AUTHKIT_LDFLAGS_macosx = $(WK_AUTHKIT_LDFLAGS$(WK_MACOS_1015));
128	WK_AUTHKIT_LDFLAGS_MACOS_SINCE_1015 = -framework AuthKit;	131	WK_AUTHKIT_LDFLAGS_MACOS_SINCE_1015 = -framework AuthKit;
129		132
130	FRAMEWORK_AND_LIBRARY_LDFLAGS = -lobjc -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreText -framework Foundation -framework ImageIO -framework IOKit -framework IOSurface -framework WebKitLegacy -lnetwork $(WK_ACCESSIBILITY_LDFLAGS) $(WK_APPKIT_LDFLAGS) $(WK_ASSERTION_SERVICES_LDFLAGS) $(WK_AUTHKIT_LDFLAGS) $(WK_CARBON_LDFLAGS) $(WK_CORE_PDF_LDFLAGS) $(WK_CORE_PREDICTION_LDFLAGS) $(WK_CORE_SERVICES_LDFLAGS) $(WK_DEVICE_IDENTITY_LDFLAGS) $(WK_GRAPHICS_SERVICES_LDFLAGS) $(WK_LIBSANDBOX_LDFLAGS) $(WK_LIBWEBRTC_LDFLAGS) $(WK_MOBILE_CORE_SERVICES_LDFLAGS) $(WK_MOBILE_GESTALT_LDFLAGS) $(WK_OPENGL_LDFLAGS) $(WK_PDFKIT_LDFLAGS) $(WK_SAFE_BROWSING_LDFLAGS) $(WK_SECURITY_INTERFACE_LDFLAGS) $(WK_UIKIT_LDFLAGS) $(WK_URL_FORMATTING_LDFLAGS) $(WK_WEBINSPECTORUI_LDFLAGS);	133	FRAMEWORK_AND_LIBRARY_LDFLAGS = -lobjc -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreText -framework Foundation -framework ImageIO -framework IOKit -framework IOSurface -framework WebKitLegacy -lnetwork $(WK_ACCESSIBILITY_LDFLAGS) $(WK_APPKIT_LDFLAGS) $(WK_ASSERTION_SERVICES_LDFLAGS) $(WK_RUNNINGBOARD_SERVICES_LDFLAGS) $(WK_AUTHKIT_LDFLAGS) $(WK_CARBON_LDFLAGS) $(WK_CORE_PDF_LDFLAGS) $(WK_CORE_PREDICTION_LDFLAGS) $(WK_CORE_SERVICES_LDFLAGS) $(WK_DEVICE_IDENTITY_LDFLAGS) $(WK_GRAPHICS_SERVICES_LDFLAGS) $(WK_LIBSANDBOX_LDFLAGS) $(WK_LIBWEBRTC_LDFLAGS) $(WK_MOBILE_CORE_SERVICES_LDFLAGS) $(WK_MOBILE_GESTALT_LDFLAGS) $(WK_OPENGL_LDFLAGS) $(WK_PDFKIT_LDFLAGS) $(WK_SAFE_BROWSING_LDFLAGS) $(WK_SECURITY_INTERFACE_LDFLAGS) $(WK_UIKIT_LDFLAGS) $(WK_URL_FORMATTING_LDFLAGS) $(WK_WEBINSPECTORUI_LDFLAGS);
131		134
132	// Prevent C++ standard library basic_stringstream, operator new, delete and their related exception types from being exported as weak symbols.	135	// Prevent C++ standard library basic_stringstream, operator new, delete and their related exception types from being exported as weak symbols.
133	UNEXPORTED_SYMBOL_LDFLAGS = -Wl,-unexported_symbol -Wl,__ZTISt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTISt9exception -Wl,-unexported_symbol -Wl,__ZTSSt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTSSt9exception -Wl,-unexported_symbol -Wl,__ZdlPvS_ -Wl,-unexported_symbol -Wl,__ZnwmPv -Wl,-unexported_symbol -Wl,__Znwm -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2EOS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1EOS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSEDn -Wl,-unexported_symbol -Wl,__ZNKSt3__18functionIFvN7WebCore12PolicyActionEEEclES2_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEE4swapERS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1ERKS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2ERKS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED1Ev -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED2Ev -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSERKS4_ -Wl,-unexported_symbol -Wl,__ZTVNSt3__117bad_function_callE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_istreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_14basic_iostreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE16_NS_13basic_ostreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTTNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTVNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTVNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE8_NS_13basic_ostreamIcS2_EE;	136	UNEXPORTED_SYMBOL_LDFLAGS = -Wl,-unexported_symbol -Wl,__ZTISt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTISt9exception -Wl,-unexported_symbol -Wl,__ZTSSt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTSSt9exception -Wl,-unexported_symbol -Wl,__ZdlPvS_ -Wl,-unexported_symbol -Wl,__ZnwmPv -Wl,-unexported_symbol -Wl,__Znwm -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2EOS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1EOS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSEDn -Wl,-unexported_symbol -Wl,__ZNKSt3__18functionIFvN7WebCore12PolicyActionEEEclES2_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEE4swapERS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1ERKS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2ERKS4_ -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED1Ev -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED2Ev -Wl,-unexported_symbol -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSERKS4_ -Wl,-unexported_symbol -Wl,__ZTVNSt3__117bad_function_callE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_istreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_14basic_iostreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE16_NS_13basic_ostreamIcS2_EE -Wl,-unexported_symbol -Wl,__ZTTNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTVNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTVNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE -Wl,-unexported_symbol -Wl,__ZTCNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE8_NS_13basic_ostreamIcS2_EE;



/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <Foundation/Foundation.h>

#if USE(APPLE_INTERNAL_SDK)

#import <RunningBoardServices/RunningBoardServices.h>

#else

@interface RBSAttribute : NSObject
@end

@interface RBSDomainAttribute : RBSAttribute
+ (instancetype)attributeWithDomain:(NSString *)domain name:(NSString *)name;
@end

@interface RBSTarget : NSObject
+ (RBSTarget *)targetWithPid:(pid_t)pid;
@end

@interface RBSAssertion : NSObject
- (instancetype)initWithExplanation:(NSString *)explanation target:(RBSTarget *)target attributes:(NSArray <RBSAttribute *> *)attributes;
- (BOOL)acquireWithError:(out NSError * _Nullable * _Nullable)error;
- (void)invalidate;
@end

#endif

Lines 110-115 function ios_family_process_webcontent_entitlements() a/Source/WebKit/Scripts/process-entitlements.sh_sec1
- a/Source/WebKit/Scripts/process-entitlements.sh +1 lines
110	plistbuddy Add :com.apple.private.network.socket-delegate bool YES	110	plistbuddy Add :com.apple.private.network.socket-delegate bool YES
111	plistbuddy Add :com.apple.private.webinspector.allow-remote-inspection bool YES	111	plistbuddy Add :com.apple.private.webinspector.allow-remote-inspection bool YES
112	plistbuddy Add :com.apple.private.webinspector.proxy-application bool YES	112	plistbuddy Add :com.apple.private.webinspector.proxy-application bool YES
		113	plistbuddy Add :com.apple.runningboard.assertions.webkit bool YES
113	plistbuddy Add :dynamic-codesigning bool YES	114	plistbuddy Add :dynamic-codesigning bool YES
114		115
115	plistbuddy Add :com.apple.tcc.delegated-services array	116	plistbuddy Add :com.apple.tcc.delegated-services array



/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "DependencyProcessAssertion.h"

#if !PLATFORM(IOS_FAMILY)

namespace WebKit {

DependencyProcessAssertion::DependencyProcessAssertion(ProcessID, ASCIILiteral description)
{
    UNUSED_PARAM(description);
}

DependencyProcessAssertion::~DependencyProcessAssertion()
{
}

} // namespace WebKit

#endif



/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <wtf/ProcessID.h>
#include <wtf/RetainPtr.h>
#include <wtf/text/ASCIILiteral.h>

#if PLATFORM(IOS_FAMILY)
OBJC_CLASS RBSAssertion;
#endif

namespace WebKit {

class DependencyProcessAssertion {
    WTF_MAKE_FAST_ALLOCATED;
public:
    DependencyProcessAssertion(ProcessID targetPID, ASCIILiteral description);
    ~DependencyProcessAssertion();

private:
#if PLATFORM(IOS_FAMILY)
    RetainPtr<RBSAssertion> m_assertion;
#endif
};

} // namespace WebKit

Lines 26-31 a/Source/WebKit/Shared/NativeWebTouchEvent.h_sec1
- a/Source/WebKit/Shared/NativeWebTouchEvent.h +1 lines
26	#pragma once	26	#pragma once
27		27
28	#include "WebEvent.h"	28	#include "WebEvent.h"
		29	#include <pal/spi/ios/UIKitSPI.h>
29		30
30	#if ENABLE(TOUCH_EVENTS)	31	#if ENABLE(TOUCH_EVENTS)
31		32



/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#import "config.h"
#import "DependencyProcessAssertion.h"

#if PLATFORM(IOS_FAMILY)

#import "RunningBoardServicesSPI.h"

namespace WebKit {

DependencyProcessAssertion::DependencyProcessAssertion(ProcessID targetPID, ASCIILiteral description)
{
    RBSTarget *target = [RBSTarget targetWithPid:targetPID];
    RBSDomainAttribute *domainAttribute = [RBSDomainAttribute attributeWithDomain: @"com.apple.webkit" name:@"DependentProcessLink"];
    m_assertion = adoptNS([[RBSAssertion alloc] initWithExplanation:String { description } target:target attributes:@[domainAttribute]]);
    NSError *acquisitionError = nil;
    if (![m_assertion acquireWithError:&acquisitionError]) {
        RELEASE_LOG_ERROR(Process, "DependencyProcessAssertion::DependencyProcessAssertion: Failed to acquire dependency process assertion '%{public}s', error: %{public}@", description.characters(), acquisitionError);
        ASSERT_NOT_REACHED();
    } else
        RELEASE_LOG(Process, "DependencyProcessAssertion::DependencyProcessAssertion: Successfully took a dependency process assertion '%{public}s' for target process with PID %d", description.characters(), targetPID);
}

DependencyProcessAssertion::~DependencyProcessAssertion()
{
    [m_assertion invalidate];
}

} // namespace WebKit

#endif // PLATFORM(IOS_FAMILY)

Lines 134-139 Shared/BlobDataFileReferenceWithSandboxExtension.cpp @no-unify a/Source/WebKit/Sources.txt_sec1
- a/Source/WebKit/Sources.txt +1 lines
134	Shared/CacheModel.cpp	134	Shared/CacheModel.cpp
135	Shared/ContextMenuContextData.cpp	135	Shared/ContextMenuContextData.cpp
136	Shared/DebuggableInfoData.cpp	136	Shared/DebuggableInfoData.cpp
		137	Shared/DependencyProcessAssertion.cpp
137	Shared/EditingRange.cpp	138	Shared/EditingRange.cpp
138	Shared/EditorState.cpp	139	Shared/EditorState.cpp
139	Shared/FontInfo.cpp	140	Shared/FontInfo.cpp

Lines 173-178 Shared/EntryPointUtilities/Cocoa/XPCService/XPCServiceEntryPoint.mm a/Source/WebKit/SourcesCocoa.txt_sec1
- a/Source/WebKit/SourcesCocoa.txt +1 lines
173	Shared/EntryPointUtilities/Cocoa/XPCService/XPCServiceMain.mm	173	Shared/EntryPointUtilities/Cocoa/XPCService/XPCServiceMain.mm
174		174
175	Shared/ios/AuxiliaryProcessIOS.mm	175	Shared/ios/AuxiliaryProcessIOS.mm
		176	Shared/ios/DependencyProcessAssertionIOS.mm
176	Shared/ios/InteractionInformationAtPosition.mm	177	Shared/ios/InteractionInformationAtPosition.mm
177	Shared/ios/InteractionInformationRequest.cpp	178	Shared/ios/InteractionInformationRequest.cpp
178	Shared/ios/NativeWebKeyboardEventIOS.mm	179	Shared/ios/NativeWebKeyboardEventIOS.mm



}
#endif

#if PLATFORM(IOS_FAMILY)
void WebProcessProxy::processWasResumed(CompletionHandler<void()>&& completionHandler)
{
    CompletionHandlerCallingScope exitScope(WTFMove(completionHandler));

    if (m_throttler.shouldBeRunnable()) {
        // The process becoming unsuspended was not unexpected.
        return;
    }

    // The WebProcess was awakened by something other than the UIProcess. Take out an assertion for a
    // limited duration to allow whatever task needs to be accomplished time to complete.
    RELEASE_LOG(ProcessSuspension, "%p - WebProcessProxy::processWasResumed() Process was unexpectedly resumed, starting background activity", this);
    auto backgroundActivityTimeoutHandler = [activity = m_throttler.backgroundActivity("WebProcess was unexpectedly resumed"_s), weakThis = makeWeakPtr(this)] {
        RELEASE_LOG(ProcessSuspension, "%p - WebProcessProxy::processWasResumed() - lambda, background activity timed out", weakThis.get());
    };
    m_unexpectedActivityTimer = makeUnique<WebCore::DeferrableOneShotTimer>(WTFMove(backgroundActivityTimeoutHandler), unexpectedActivityDuration);
}
#endif

}



    void unblockAccessibilityServerIfNeeded();
#endif

#if PLATFORM(IOS_FAMILY)
    void processWasResumed(CompletionHandler<void()>&&);
#endif

    void webPageMediaStateDidChange(WebPageProxy&);

    void ref() final { ThreadSafeRefCounted::ref(); }

    BackgroundWebProcessToken m_backgroundToken;
#if PLATFORM(IOS_FAMILY)
    bool m_hasSentMessageToUnblockAccessibilityServer { false };
    std::unique_ptr<WebCore::DeferrableOneShotTimer> m_unexpectedActivityTimer;
#endif

    HashMap<String, uint64_t> m_pageURLRetainCountMap;



    StopDisplayLink(unsigned observerID, uint32_t displayID)
#endif

#if PLATFORM(IOS_FAMILY)
    ProcessWasResumed() -> () Async
#endif

    # Plug-in messages.
    void AddPlugInAutoStartOriginHash(String pageOrigin, uint32_t hash)
    void PlugInDidReceiveUserInteraction(uint32_t hash)

Lines 31-36 a/Source/WebKit/WebProcess/WebProcess.cpp_sec1
- a/Source/WebKit/WebProcess/WebProcess.cpp -6 / +5 lines
31	#include "APIPageHandle.h"	31	#include "APIPageHandle.h"
32	#include "AuthenticationManager.h"	32	#include "AuthenticationManager.h"
33	#include "AuxiliaryProcessMessages.h"	33	#include "AuxiliaryProcessMessages.h"
		34	#include "DependencyProcessAssertion.h"
34	#include "DrawingArea.h"	35	#include "DrawingArea.h"
35	#include "EventDispatcher.h"	36	#include "EventDispatcher.h"
36	#include "InjectedBundle.h"	37	#include "InjectedBundle.h"
Lines 271-277 void WebProcess::initializeConnection(IPC::Connection* connection) a/Source/WebKit/WebProcess/WebProcess.cpp_sec2
271	m_eventDispatcher->initializeConnection(connection);	272	m_eventDispatcher->initializeConnection(connection);
272	#if PLATFORM(IOS_FAMILY)	273	#if PLATFORM(IOS_FAMILY)
273	m_viewUpdateDispatcher->initializeConnection(connection);	274	m_viewUpdateDispatcher->initializeConnection(connection);
		275
		276	ASSERT(!m_uiProcessDependencyProcessAssertion);
		277	m_uiProcessDependencyProcessAssertion = makeUnique<DependencyProcessAssertion>(connection->remoteProcessID(), "WebContent process dependency on UIProcess"_s);
274	#endif // PLATFORM(IOS_FAMILY)	278	#endif // PLATFORM(IOS_FAMILY)
		279
275	m_webInspectorInterruptDispatcher->initializeConnection(connection);	280	m_webInspectorInterruptDispatcher->initializeConnection(connection);
276		281
277	#if ENABLE(NETSCAPE_PLUGIN_API)	282	#if ENABLE(NETSCAPE_PLUGIN_API)
Lines 282-293 void WebProcess::initializeConnection(IPC::Connection* connection) a/Source/WebKit/WebProcess/WebProcess.cpp_sec3
282	supplement->initializeConnection(connection);	287	supplement->initializeConnection(connection);
283		288
284	m_webConnection = WebConnectionToUIProcess::create(this);	289	m_webConnection = WebConnectionToUIProcess::create(this);
285
286	#if PLATFORM(IOS_FAMILY)
287	// Make sure we have an IPC::Connection before creating the ProcessTaskStateObserver since it may call
288	// WebProcess::processTaskStateDidChange() on a background thread and deference the IPC connection.
289	m_taskStateObserver = ProcessTaskStateObserver::create(*this);
290	#endif
291	}	290	}
292		291
293	void WebProcess::initializeWebProcess(WebProcessCreationParameters&& parameters)	292	void WebProcess::initializeWebProcess(WebProcessCreationParameters&& parameters)



#include <wtf/MachSendRight.h>
#endif

#if PLATFORM(IOS_FAMILY)
#include "ProcessTaskStateObserver.h"
OBJC_CLASS BKSProcessAssertion;
#endif

#if PLATFORM(WAYLAND) && USE(WPE_RENDERER)
#include <WebCore/PlatformDisplayLibWPE.h>
#endif


namespace WebKit {

class DependencyProcessAssertion;
class EventDispatcher;
class GamepadData;
class GPUProcessConnection;

class LayerHostingContext;
#endif

class WebProcess : public AuxiliaryProcess
    : public AuxiliaryProcess
#if PLATFORM(IOS_FAMILY)
    , ProcessTaskStateObserver::Client
#endif
{
    WTF_MAKE_FAST_ALLOCATED;
public:

#endif

#if PLATFORM(IOS_FAMILY)
    void processTaskStateDidChange(ProcessTaskStateObserver::TaskState) final;
    bool shouldFreezeOnSuspension() const;
    void updateFreezerStatus();

    void releaseProcessWasResumedAssertions();
#endif

#if ENABLE(VIDEO)


#if PLATFORM(IOS_FAMILY)
    WebSQLiteDatabaseTracker m_webSQLiteDatabaseTracker;
    std::unique_ptr<DependencyProcessAssertion> m_uiProcessDependencyProcessAssertion;
    Lock m_processWasResumedAssertionsLock;
    RetainPtr<BKSProcessAssertion> m_processWasResumedUIAssertion;
    RetainPtr<BKSProcessAssertion> m_processWasResumedOwnAssertion;
#endif

    enum PageMarkingLayersAsVolatileCounterType { };



#if PLATFORM(IOS_FAMILY)
#import "AccessibilitySupportSPI.h"
#import "AssertionServicesSPI.h"
#import "RunningBoardServicesSPI.h"
#import "UserInterfaceIdiom.h"
#import "WKAccessibilityWebPageObjectIOS.h"
#import <UIKit/UIAccessibility.h>

#endif // PLATFORM(MAC)
}

#if PLATFORM(IOS_FAMILY)
void WebProcess::processTaskStateDidChange(ProcessTaskStateObserver::TaskState taskState)
{
    // NOTE: This will be called from a background thread.
    RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() - taskState(%d)", this, taskState);
    if (taskState != ProcessTaskStateObserver::Running)
        return;

    LockHolder holder(m_processWasResumedAssertionsLock);
    if (m_processWasResumedUIAssertion && m_processWasResumedOwnAssertion)
        return;

    // We were awakened from suspension unexpectedly. Notify the WebProcessProxy, but take a process assertion on our parent PID
    // to ensure that it too is awakened.
    RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processTaskStateChanged() Taking 'WebProcess was resumed' assertion on behalf on UIProcess", this);
    m_processWasResumedUIAssertion = adoptNS([[BKSProcessAssertion alloc] initWithPID:parentProcessConnection()->remoteProcessID() flags:BKSProcessAssertionPreventTaskSuspend reason:BKSProcessAssertionReasonFinishTask name:@"WebProcess was resumed" withHandler:^(BOOL acquired) {
        if (!acquired)
            RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() failed to take 'WebProcess was resumed' assertion for parent process", this);
    }]);
    m_processWasResumedUIAssertion.get().invalidationHandler = [this] {
        RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateChanged() Releasing 'WebProcess was resumed' assertion on behalf on UIProcess due to invalidation", this);
        releaseProcessWasResumedAssertions();
    };
    m_processWasResumedOwnAssertion = adoptNS([[BKSProcessAssertion alloc] initWithPID:getpid() flags:BKSProcessAssertionPreventTaskSuspend reason:BKSProcessAssertionReasonFinishTask name:@"WebProcess was resumed" withHandler:^(BOOL acquired) {
        if (!acquired)
            RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() failed to take 'WebProcess was resumed' assertion for WebContent process", this);
    }]);
    m_processWasResumedOwnAssertion.get().invalidationHandler = [this] {
        RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateChanged() Releasing 'WebProcess was resumed' assertion on behalf on WebContent process due to invalidation", this);
        releaseProcessWasResumedAssertions();
    };

    parentProcessConnection()->sendWithAsyncReply(Messages::WebProcessProxy::ProcessWasResumed(), [this] {
        RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() Parent process handled ProcessWasResumed IPC, releasing our assertions", this);
        releaseProcessWasResumedAssertions();
    });
}

void WebProcess::releaseProcessWasResumedAssertions()
{
    LockHolder holder(m_processWasResumedAssertionsLock);
    if (m_processWasResumedUIAssertion) {
        RELEASE_LOG(ProcessSuspension, "%p - WebProcess::releaseProcessWasResumedAssertions() Releasing parent process 'WebProcess was resumed' assertion", this);
        [m_processWasResumedUIAssertion invalidate];
        m_processWasResumedUIAssertion = nullptr;
    }
    if (m_processWasResumedOwnAssertion) {
        RELEASE_LOG(ProcessSuspension, "%p - WebProcess::releaseProcessWasResumedAssertions() Releasing WebContent process 'WebProcess was resumed' assertion", this);
        [m_processWasResumedOwnAssertion invalidate];
        m_processWasResumedOwnAssertion = nullptr;
    }
}

#endif

#if PLATFORM(IOS_FAMILY)
static NSString *webProcessLoaderAccessibilityBundlePath()
{

Return to Bug 205687

Lines 325-334 public: a/Source/WebKit/UIProcess/WebProcessProxy.h_sec1
- a/Source/WebKit/UIProcess/WebProcessProxy.h -5 lines
325	void unblockAccessibilityServerIfNeeded();	325	void unblockAccessibilityServerIfNeeded();
326	#endif	326	#endif
327		327
328	#if PLATFORM(IOS_FAMILY)
329	void processWasResumed(CompletionHandler<void()>&&);
330	#endif
331
332	void webPageMediaStateDidChange(WebPageProxy&);	328	void webPageMediaStateDidChange(WebPageProxy&);
333		329
334	void ref() final { ThreadSafeRefCounted::ref(); }	330	void ref() final { ThreadSafeRefCounted::ref(); }
Lines 501-507 private: a/Source/WebKit/UIProcess/WebProcessProxy.h_sec2
501	BackgroundWebProcessToken m_backgroundToken;	497	BackgroundWebProcessToken m_backgroundToken;
502	#if PLATFORM(IOS_FAMILY)	498	#if PLATFORM(IOS_FAMILY)
503	bool m_hasSentMessageToUnblockAccessibilityServer { false };	499	bool m_hasSentMessageToUnblockAccessibilityServer { false };
504	std::unique_ptr<WebCore::DeferrableOneShotTimer> m_unexpectedActivityTimer;
505	#endif	500	#endif
506		501
507	HashMap<String, uint64_t> m_pageURLRetainCountMap;	502	HashMap<String, uint64_t> m_pageURLRetainCountMap;

Lines 1-3 a/Source/WebKit/ChangeLog_sec1
- a/Source/WebKit/ChangeLog +34 lines
		1	2020-01-02 Chris Dumez <cdumez@apple.com>
		2
		3	[iOS] Replace "unexpectedly resumed" observer with RunningBoard suspendible assertions
		4	https://bugs.webkit.org/show_bug.cgi?id=205687
		5	<rdar://problem/57890246>
		6
		7	Reviewed by NOBODY (OOPS!).
		8
		9	Adopt new RunningBoard process assertion to indicate that WebContent processes depend on their
		10	UIProcess (and therefore, the UIProcess must be running if the WebContent process is). This
		11	replaces our "Unexpectedly resumed" assertion which was causing unexpected terminations in some
		12	cases.
		13
		14	* Configurations/WebKit.xcconfig:
		15	* Platform/spi/ios/RunningBoardServicesSPI.h: Added.
		16	* Scripts/process-entitlements.sh:
		17	* Shared/DependencyProcessAssertion.cpp: Added.
		18	(WebKit::DependencyProcessAssertion::DependencyProcessAssertion):
		19	(WebKit::DependencyProcessAssertion::~DependencyProcessAssertion):
		20	* Shared/DependencyProcessAssertion.h: Added.
		21	* Shared/ios/DependencyProcessAssertionIOS.mm: Added.
		22	(WebKit::DependencyProcessAssertion::DependencyProcessAssertion):
		23	(WebKit::DependencyProcessAssertion::~DependencyProcessAssertion):
		24	* Sources.txt:
		25	* SourcesCocoa.txt:
		26	* UIProcess/Cocoa/WebProcessProxyCocoa.mm:
		27	* UIProcess/WebProcessProxy.h:
		28	* UIProcess/WebProcessProxy.messages.in:
		29	* WebKit.xcodeproj/project.pbxproj:
		30	* WebProcess/WebProcess.cpp:
		31	(WebKit::WebProcess::initializeConnection):
		32	* WebProcess/WebProcess.h:
		33	* WebProcess/cocoa/WebProcessCocoa.mm:
		34
1	2020-01-02 Carlos Garcia Campos <cgarcia@igalia.com>	35	2020-01-02 Carlos Garcia Campos <cgarcia@igalia.com>
2		36
3	[GTK] Make ondemand hardware acceleration policy never leave AC mode	37	[GTK] Make ondemand hardware acceleration policy never leave AC mode

Line 0 a/Source/WebKit/Platform/spi/ios/RunningBoardServicesSPI.h_sec1
- a/Source/WebKit/Platform/spi/ios/RunningBoardServicesSPI.h +51 lines
	1	/*
	2	* Copyright (C) 2020 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	14	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	17	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	18	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	19	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	20	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	21	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	23	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#import <Foundation/Foundation.h>
	27
	28	#if USE(APPLE_INTERNAL_SDK)
	29
	30	#import <RunningBoardServices/RunningBoardServices.h>
	31
	32	#else
	33
	34	@interface RBSAttribute : NSObject
	35	@end
	36
	37	@interface RBSDomainAttribute : RBSAttribute
	38	+ (instancetype)attributeWithDomain:(NSString )domain name:(NSString )name;
	39	@end
	40
	41	@interface RBSTarget : NSObject
	42	+ (RBSTarget *)targetWithPid:(pid_t)pid;
	43	@end
	44
	45	@interface RBSAssertion : NSObject
	46	- (instancetype)initWithExplanation:(NSString )explanation target:(RBSTarget )target attributes:(NSArray <RBSAttribute > )attributes;
	47	- (BOOL)acquireWithError:(out NSError * _Nullable * _Nullable)error;
	48	- (void)invalidate;
	49	@end
	50
	51	#endif

Line 0 a/Source/WebKit/Shared/DependencyProcessAssertion.cpp_sec1
- a/Source/WebKit/Shared/DependencyProcessAssertion.cpp +44 lines
	1	/*
	2	* Copyright (C) 2020 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	14	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	15	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	17	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	18	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	19	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	20	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	21	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	22	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	23	* THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#include "config.h"
	27	#include "DependencyProcessAssertion.h"
	28
	29	#if !PLATFORM(IOS_FAMILY)
	30
	31	namespace WebKit {
	32
	33	DependencyProcessAssertion::DependencyProcessAssertion(ProcessID, ASCIILiteral description)
	34	{
	35	UNUSED_PARAM(description);
	36	}
	37
	38	DependencyProcessAssertion::~DependencyProcessAssertion()
	39	{
	40	}
	41
	42	} // namespace WebKit
	43
	44	#endif

Line 0 a/Source/WebKit/Shared/ios/DependencyProcessAssertionIOS.mm_sec1
- a/Source/WebKit/Shared/ios/DependencyProcessAssertionIOS.mm +55 lines
	1	/*
	2	* Copyright (C) 2020 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	14	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	15	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	17	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	18	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	19	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	20	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	21	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	22	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	23	* THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#import "config.h"
	27	#import "DependencyProcessAssertion.h"
	28
	29	#if PLATFORM(IOS_FAMILY)
	30
	31	#import "RunningBoardServicesSPI.h"
	32
	33	namespace WebKit {
	34
	35	DependencyProcessAssertion::DependencyProcessAssertion(ProcessID targetPID, ASCIILiteral description)
	36	{
	37	RBSTarget *target = [RBSTarget targetWithPid:targetPID];
	38	RBSDomainAttribute *domainAttribute = [RBSDomainAttribute attributeWithDomain: @"com.apple.webkit" name:@"DependentProcessLink"];
	39	m_assertion = adoptNS([[RBSAssertion alloc] initWithExplanation:String { description } target:target attributes:@[domainAttribute]]);
	40	NSError *acquisitionError = nil;
	41	if (![m_assertion acquireWithError:&acquisitionError]) {
	42	RELEASE_LOG_ERROR(Process, "DependencyProcessAssertion::DependencyProcessAssertion: Failed to acquire dependency process assertion '%{public}s', error: %{public}@", description.characters(), acquisitionError);
	43	ASSERT_NOT_REACHED();
	44	} else
	45	RELEASE_LOG(Process, "DependencyProcessAssertion::DependencyProcessAssertion: Successfully took a dependency process assertion '%{public}s' for target process with PID %d", description.characters(), targetPID);
	46	}
	47
	48	DependencyProcessAssertion::~DependencyProcessAssertion()
	49	{
	50	[m_assertion invalidate];
	51	}
	52
	53	} // namespace WebKit
	54
	55	#endif // PLATFORM(IOS_FAMILY)

Lines 190-213 void WebProcessProxy::releaseHighPerformanceGPU() a/Source/WebKit/UIProcess/Cocoa/WebProcessProxyCocoa.mm_sec1
- a/Source/WebKit/UIProcess/Cocoa/WebProcessProxyCocoa.mm -20 lines
190	}	190	}
191	#endif	191	#endif
192		192
193	#if PLATFORM(IOS_FAMILY)
194	void WebProcessProxy::processWasResumed(CompletionHandler<void()>&& completionHandler)
195	{
196	CompletionHandlerCallingScope exitScope(WTFMove(completionHandler));
197
198	if (m_throttler.shouldBeRunnable()) {
199	// The process becoming unsuspended was not unexpected.
200	return;
201	}
202
203	// The WebProcess was awakened by something other than the UIProcess. Take out an assertion for a
204	// limited duration to allow whatever task needs to be accomplished time to complete.
205	RELEASE_LOG(ProcessSuspension, "%p - WebProcessProxy::processWasResumed() Process was unexpectedly resumed, starting background activity", this);
206	auto backgroundActivityTimeoutHandler = [activity = m_throttler.backgroundActivity("WebProcess was unexpectedly resumed"_s), weakThis = makeWeakPtr(this)] {
207	RELEASE_LOG(ProcessSuspension, "%p - WebProcessProxy::processWasResumed() - lambda, background activity timed out", weakThis.get());
208	};
209	m_unexpectedActivityTimer = makeUnique<WebCore::DeferrableOneShotTimer>(WTFMove(backgroundActivityTimeoutHandler), unexpectedActivityDuration);
210	}
211	#endif
212
213	}	193	}

Lines 72-81 messages -> WebProcessProxy LegacyReceiver { a/Source/WebKit/UIProcess/WebProcessProxy.messages.in_sec1
- a/Source/WebKit/UIProcess/WebProcessProxy.messages.in -4 lines
72	StopDisplayLink(unsigned observerID, uint32_t displayID)	72	StopDisplayLink(unsigned observerID, uint32_t displayID)
73	#endif	73	#endif
74		74
75	#if PLATFORM(IOS_FAMILY)
76	ProcessWasResumed() -> () Async
77	#endif
78
79	# Plug-in messages.	75	# Plug-in messages.
80	void AddPlugInAutoStartOriginHash(String pageOrigin, uint32_t hash)	76	void AddPlugInAutoStartOriginHash(String pageOrigin, uint32_t hash)
81	void PlugInDidReceiveUserInteraction(uint32_t hash)	77	void PlugInDidReceiveUserInteraction(uint32_t hash)

Lines 956-962 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec1
- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj +12 lines
956	46BEB6E322FBB21A00269867 /* TransientLocalStorageNamespace.h in Headers / = {isa = PBXBuildFile; fileRef = 46BEB6E122FBB21A00269867 / TransientLocalStorageNamespace.h */; };	956	46BEB6E322FBB21A00269867 /* TransientLocalStorageNamespace.h in Headers / = {isa = PBXBuildFile; fileRef = 46BEB6E122FBB21A00269867 / TransientLocalStorageNamespace.h */; };
957	46C392292316EC4D008EED9B /* WebPageProxyIdentifier.h in Headers / = {isa = PBXBuildFile; fileRef = 46C392282316EC4D008EED9B / WebPageProxyIdentifier.h */; };	957	46C392292316EC4D008EED9B /* WebPageProxyIdentifier.h in Headers / = {isa = PBXBuildFile; fileRef = 46C392282316EC4D008EED9B / WebPageProxyIdentifier.h */; };
958	46DF063C1F3905F8001980BB /* NetworkCORSPreflightChecker.h in Headers / = {isa = PBXBuildFile; fileRef = 46DF063A1F3905E5001980BB / NetworkCORSPreflightChecker.h */; };	958	46DF063C1F3905F8001980BB /* NetworkCORSPreflightChecker.h in Headers / = {isa = PBXBuildFile; fileRef = 46DF063A1F3905E5001980BB / NetworkCORSPreflightChecker.h */; };
		959	46F77D8023BE63BE0090B5A7 /* DependencyProcessAssertion.h in Headers / = {isa = PBXBuildFile; fileRef = 46F77D7E23BE63B10090B5A7 / DependencyProcessAssertion.h */; };
959	46F9B26323526EF3006FE5FA /* WebBackForwardCacheEntry.h in Headers / = {isa = PBXBuildFile; fileRef = 46F9B26223526ED0006FE5FA / WebBackForwardCacheEntry.h */; };	960	46F9B26323526EF3006FE5FA /* WebBackForwardCacheEntry.h in Headers / = {isa = PBXBuildFile; fileRef = 46F9B26223526ED0006FE5FA / WebBackForwardCacheEntry.h */; };
		961	46FDA8F723BE586900B198FA /* RunningBoardServicesSPI.h in Headers / = {isa = PBXBuildFile; fileRef = 46FDA8F623BE585900B198FA / RunningBoardServicesSPI.h */; };
960	49BCA19223A177660028A836 /* APIResourceLoadStatisticsFirstParty.h in Headers / = {isa = PBXBuildFile; fileRef = 49BCA19123A177660028A836 / APIResourceLoadStatisticsFirstParty.h */; };	962	49BCA19223A177660028A836 /* APIResourceLoadStatisticsFirstParty.h in Headers / = {isa = PBXBuildFile; fileRef = 49BCA19123A177660028A836 / APIResourceLoadStatisticsFirstParty.h */; };
961	49BCA19523A18CFD0028A836 /* _WKResourceLoadStatisticsFirstPartyInternal.h in Headers / = {isa = PBXBuildFile; fileRef = 49BCA19023A175490028A836 / _WKResourceLoadStatisticsFirstPartyInternal.h */; };	963	49BCA19523A18CFD0028A836 /* _WKResourceLoadStatisticsFirstPartyInternal.h in Headers / = {isa = PBXBuildFile; fileRef = 49BCA19023A175490028A836 / _WKResourceLoadStatisticsFirstPartyInternal.h */; };
962	49BCA19723A1930D0028A836 /* APIResourceLoadStatisticsThirdParty.h in Headers / = {isa = PBXBuildFile; fileRef = 49BCA19623A18F620028A836 / APIResourceLoadStatisticsThirdParty.h */; };	964	49BCA19723A1930D0028A836 /* APIResourceLoadStatisticsThirdParty.h in Headers / = {isa = PBXBuildFile; fileRef = 49BCA19623A18F620028A836 / APIResourceLoadStatisticsThirdParty.h */; };
Lines 3422-3428 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec2
3422	46C392282316EC4D008EED9B /* WebPageProxyIdentifier.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WebPageProxyIdentifier.h; sourceTree = "<group>"; };	3424	46C392282316EC4D008EED9B /* WebPageProxyIdentifier.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WebPageProxyIdentifier.h; sourceTree = "<group>"; };
3423	46DF06391F3905E5001980BB /* NetworkCORSPreflightChecker.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = NetworkCORSPreflightChecker.cpp; sourceTree = "<group>"; };	3425	46DF06391F3905E5001980BB /* NetworkCORSPreflightChecker.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = NetworkCORSPreflightChecker.cpp; sourceTree = "<group>"; };
3424	46DF063A1F3905E5001980BB /* NetworkCORSPreflightChecker.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NetworkCORSPreflightChecker.h; sourceTree = "<group>"; };	3426	46DF063A1F3905E5001980BB /* NetworkCORSPreflightChecker.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NetworkCORSPreflightChecker.h; sourceTree = "<group>"; };
		3427	46F77D7E23BE63B10090B5A7 /* DependencyProcessAssertion.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DependencyProcessAssertion.h; sourceTree = "<group>"; };
		3428	46F77D7F23BE63B20090B5A7 /* DependencyProcessAssertion.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = DependencyProcessAssertion.cpp; sourceTree = "<group>"; };
		3429	46F77D8123BE63DC0090B5A7 /* DependencyProcessAssertionIOS.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = DependencyProcessAssertionIOS.mm; path = ios/DependencyProcessAssertionIOS.mm; sourceTree = "<group>"; };
3425	46F9B26223526ED0006FE5FA /* WebBackForwardCacheEntry.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebBackForwardCacheEntry.h; sourceTree = "<group>"; };	3430	46F9B26223526ED0006FE5FA /* WebBackForwardCacheEntry.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebBackForwardCacheEntry.h; sourceTree = "<group>"; };
		3431	46FDA8F623BE585900B198FA /* RunningBoardServicesSPI.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RunningBoardServicesSPI.h; sourceTree = "<group>"; };
3426	49BCA19023A175490028A836 /* _WKResourceLoadStatisticsFirstPartyInternal.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = _WKResourceLoadStatisticsFirstPartyInternal.h; sourceTree = "<group>"; };	3432	49BCA19023A175490028A836 /* _WKResourceLoadStatisticsFirstPartyInternal.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = _WKResourceLoadStatisticsFirstPartyInternal.h; sourceTree = "<group>"; };
3427	49BCA19123A177660028A836 /* APIResourceLoadStatisticsFirstParty.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = APIResourceLoadStatisticsFirstParty.h; sourceTree = "<group>"; };	3433	49BCA19123A177660028A836 /* APIResourceLoadStatisticsFirstParty.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = APIResourceLoadStatisticsFirstParty.h; sourceTree = "<group>"; };
3428	49BCA19623A18F620028A836 /* APIResourceLoadStatisticsThirdParty.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = APIResourceLoadStatisticsThirdParty.h; sourceTree = "<group>"; };	3434	49BCA19623A18F620028A836 /* APIResourceLoadStatisticsThirdParty.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = APIResourceLoadStatisticsThirdParty.h; sourceTree = "<group>"; };
Lines 5570-5575 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec3
5570	99F642D21FABE378009621E9 /* CoordinateSystem.h */,	5576	99F642D21FABE378009621E9 /* CoordinateSystem.h */,
5571	99036AE823A970870000B06A /* DebuggableInfoData.cpp */,	5577	99036AE823A970870000B06A /* DebuggableInfoData.cpp */,
5572	99036AE723A970870000B06A /* DebuggableInfoData.h */,	5578	99036AE723A970870000B06A /* DebuggableInfoData.h */,
		5579	46F77D7F23BE63B20090B5A7 /* DependencyProcessAssertion.cpp */,
		5580	46F77D7E23BE63B10090B5A7 /* DependencyProcessAssertion.h */,
5573	2D7FD190223C730F007887F1 /* DocumentEditingContext.h */,	5581	2D7FD190223C730F007887F1 /* DocumentEditingContext.h */,
5574	2D7FD191223C7310007887F1 /* DocumentEditingContext.mm */,	5582	2D7FD191223C7310007887F1 /* DocumentEditingContext.mm */,
5575	C517388012DF8F4F00EE3F47 /* DragControllerAction.h */,	5583	C517388012DF8F4F00EE3F47 /* DragControllerAction.h */,
Lines 6455-6460 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec4
6455	isa = PBXGroup;	6463	isa = PBXGroup;
6456	children = (	6464	children = (
6457	A7E93CEB192531AA00A1DC48 /* AuxiliaryProcessIOS.mm */,	6465	A7E93CEB192531AA00A1DC48 /* AuxiliaryProcessIOS.mm */,
		6466	46F77D8123BE63DC0090B5A7 /* DependencyProcessAssertionIOS.mm */,
6458	2DA6731920C754B1003CB401 /* DynamicViewportSizeUpdate.h */,	6467	2DA6731920C754B1003CB401 /* DynamicViewportSizeUpdate.h */,
6459	2DA9449D1884E4F000ED86DB /* GestureTypes.h */,	6468	2DA9449D1884E4F000ED86DB /* GestureTypes.h */,
6460	C5BCE5DA1C50761D00CDE3FA /* InteractionInformationAtPosition.h */,	6469	C5BCE5DA1C50761D00CDE3FA /* InteractionInformationAtPosition.h */,
Lines 9606-9611 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec5
9606	A13B3DA1207F39DE0090C58D /* MobileWiFiSPI.h */,	9615	A13B3DA1207F39DE0090C58D /* MobileWiFiSPI.h */,
9607	3178AF9720E2A7F80074DE94 /* PDFKitSPI.h */,	9616	3178AF9720E2A7F80074DE94 /* PDFKitSPI.h */,
9608	2DC18FAF218912640025A88D /* PencilKitSPI.h */,	9617	2DC18FAF218912640025A88D /* PencilKitSPI.h */,
		9618	46FDA8F623BE585900B198FA /* RunningBoardServicesSPI.h */,
9609	CE1A0BD01A48E6C60054EF74 /* TCCSPI.h */,	9619	CE1A0BD01A48E6C60054EF74 /* TCCSPI.h */,
9610	CE1A0BD11A48E6C60054EF74 /* TextInputSPI.h */,	9620	CE1A0BD11A48E6C60054EF74 /* TextInputSPI.h */,
9611	CEE4AE2A1A5DCF430002F49B /* UIKitSPI.h */,	9621	CEE4AE2A1A5DCF430002F49B /* UIKitSPI.h */,
Lines 9974-9979 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec6
9974	1AC75380183BE50F0072CB15 /* DataReference.h in Headers */,	9984	1AC75380183BE50F0072CB15 /* DataReference.h in Headers */,
9975	99036AE923A970870000B06A /* DebuggableInfoData.h in Headers */,	9985	99036AE923A970870000B06A /* DebuggableInfoData.h in Headers */,
9976	BC032DA610F437D10058C15A /* Decoder.h in Headers */,	9986	BC032DA610F437D10058C15A /* Decoder.h in Headers */,
		9987	46F77D8023BE63BE0090B5A7 /* DependencyProcessAssertion.h in Headers */,
9977	57DCEDAB214C60090016B847 /* DeviceIdentitySPI.h in Headers */,	9988	57DCEDAB214C60090016B847 /* DeviceIdentitySPI.h in Headers */,
9978	07297F9F1C17BBEA015F0735 /* DeviceIdHashSaltStorage.h in Headers */,	9989	07297F9F1C17BBEA015F0735 /* DeviceIdHashSaltStorage.h in Headers */,
9979	2D0C56FD229F1DEA00BD33E7 /* DeviceManagementSoftLink.h in Headers */,	9990	2D0C56FD229F1DEA00BD33E7 /* DeviceManagementSoftLink.h in Headers */,
Lines 10270-10275 a/Source/WebKit/WebKit.xcodeproj/project.pbxproj_sec7
10270	7AFBD36A21E542F1005DBACB /* ResourceLoadStatisticsPersistentStorage.h in Headers */,	10281	7AFBD36A21E542F1005DBACB /* ResourceLoadStatisticsPersistentStorage.h in Headers */,
10271	1A30066E1110F4F70031937C /* ResponsivenessTimer.h in Headers */,	10282	1A30066E1110F4F70031937C /* ResponsivenessTimer.h in Headers */,
10272	410482CE1DDD324F00F006D0 /* RTCNetwork.h in Headers */,	10283	410482CE1DDD324F00F006D0 /* RTCNetwork.h in Headers */,
		10284	46FDA8F723BE586900B198FA /* RunningBoardServicesSPI.h in Headers */,
10273	0E97D74D200E900400BF6643 /* SafeBrowsingSPI.h in Headers */,	10285	0E97D74D200E900400BF6643 /* SafeBrowsingSPI.h in Headers */,
10274	5CA9854A210BEB640057EB6B /* SafeBrowsingWarning.h in Headers */,	10286	5CA9854A210BEB640057EB6B /* SafeBrowsingWarning.h in Headers */,
10275	BC2D021712AC41CB00E732A3 /* SameDocumentNavigationType.h in Headers */,	10287	BC2D021712AC41CB00E732A3 /* SameDocumentNavigationType.h in Headers */,

Lines 65-75 a/Source/WebKit/WebProcess/WebProcess.h_sec1
- a/Source/WebKit/WebProcess/WebProcess.h -17 / +3 lines
65	#include <wtf/MachSendRight.h>	65	#include <wtf/MachSendRight.h>
66	#endif	66	#endif
67		67
68	#if PLATFORM(IOS_FAMILY)
69	#include "ProcessTaskStateObserver.h"
70	OBJC_CLASS BKSProcessAssertion;
71	#endif
72
73	#if PLATFORM(WAYLAND) && USE(WPE_RENDERER)	68	#if PLATFORM(WAYLAND) && USE(WPE_RENDERER)
74	#include <WebCore/PlatformDisplayLibWPE.h>	69	#include <WebCore/PlatformDisplayLibWPE.h>
75	#endif	70	#endif
Lines 105-110 struct ServiceWorkerContextData; a/Source/WebKit/WebProcess/WebProcess.h_sec2
105		100
106	namespace WebKit {	101	namespace WebKit {
107		102
		103	class DependencyProcessAssertion;
108	class EventDispatcher;	104	class EventDispatcher;
109	class GamepadData;	105	class GamepadData;
110	class GPUProcessConnection;	106	class GPUProcessConnection;
Lines 140-150 struct WebsiteDataStoreParameters; a/Source/WebKit/WebProcess/WebProcess.h_sec3
140	class LayerHostingContext;	136	class LayerHostingContext;
141	#endif	137	#endif
142		138
143	class WebProcess	139	class WebProcess : public AuxiliaryProcess
144	: public AuxiliaryProcess
145	#if PLATFORM(IOS_FAMILY)
146	, ProcessTaskStateObserver::Client
147	#endif
148	{	140	{
149	WTF_MAKE_FAST_ALLOCATED;	141	WTF_MAKE_FAST_ALLOCATED;
150	public:	142	public:
Lines 474-484 private: a/Source/WebKit/WebProcess/WebProcess.h_sec4
474	#endif	466	#endif
475		467
476	#if PLATFORM(IOS_FAMILY)	468	#if PLATFORM(IOS_FAMILY)
477	void processTaskStateDidChange(ProcessTaskStateObserver::TaskState) final;
478	bool shouldFreezeOnSuspension() const;	469	bool shouldFreezeOnSuspension() const;
479	void updateFreezerStatus();	470	void updateFreezerStatus();
480
481	void releaseProcessWasResumedAssertions();
482	#endif	471	#endif
483		472
484	#if ENABLE(VIDEO)	473	#if ENABLE(VIDEO)
Lines 563-572 private: a/Source/WebKit/WebProcess/WebProcess.h_sec5
563		552
564	#if PLATFORM(IOS_FAMILY)	553	#if PLATFORM(IOS_FAMILY)
565	WebSQLiteDatabaseTracker m_webSQLiteDatabaseTracker;	554	WebSQLiteDatabaseTracker m_webSQLiteDatabaseTracker;
566	RefPtr<ProcessTaskStateObserver> m_taskStateObserver;	555	std::unique_ptr<DependencyProcessAssertion> m_uiProcessDependencyProcessAssertion;
567	Lock m_processWasResumedAssertionsLock;
568	RetainPtr<BKSProcessAssertion> m_processWasResumedUIAssertion;
569	RetainPtr<BKSProcessAssertion> m_processWasResumedOwnAssertion;
570	#endif	556	#endif
571		557
572	enum PageMarkingLayersAsVolatileCounterType { };	558	enum PageMarkingLayersAsVolatileCounterType { };

Lines 91-96 a/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm_sec1
- a/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm -55 / +1 lines
91	#if PLATFORM(IOS_FAMILY)	91	#if PLATFORM(IOS_FAMILY)
92	#import "AccessibilitySupportSPI.h"	92	#import "AccessibilitySupportSPI.h"
93	#import "AssertionServicesSPI.h"	93	#import "AssertionServicesSPI.h"
		94	#import "RunningBoardServicesSPI.h"
94	#import "UserInterfaceIdiom.h"	95	#import "UserInterfaceIdiom.h"
95	#import "WKAccessibilityWebPageObjectIOS.h"	96	#import "WKAccessibilityWebPageObjectIOS.h"
96	#import <UIKit/UIAccessibility.h>	97	#import <UIKit/UIAccessibility.h>
Lines 322-382 void WebProcess::updateProcessName() a/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm_sec2
322	#endif // PLATFORM(MAC)	323	#endif // PLATFORM(MAC)
323	}	324	}
324		325
325	#if PLATFORM(IOS_FAMILY)
326	void WebProcess::processTaskStateDidChange(ProcessTaskStateObserver::TaskState taskState)
327	{
328	// NOTE: This will be called from a background thread.
329	RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() - taskState(%d)", this, taskState);
330	if (taskState != ProcessTaskStateObserver::Running)
331	return;
332
333	LockHolder holder(m_processWasResumedAssertionsLock);
334	if (m_processWasResumedUIAssertion && m_processWasResumedOwnAssertion)
335	return;
336
337	// We were awakened from suspension unexpectedly. Notify the WebProcessProxy, but take a process assertion on our parent PID
338	// to ensure that it too is awakened.
339	RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processTaskStateChanged() Taking 'WebProcess was resumed' assertion on behalf on UIProcess", this);
340	m_processWasResumedUIAssertion = adoptNS([[BKSProcessAssertion alloc] initWithPID:parentProcessConnection()->remoteProcessID() flags:BKSProcessAssertionPreventTaskSuspend reason:BKSProcessAssertionReasonFinishTask name:@"WebProcess was resumed" withHandler:^(BOOL acquired) {
341	if (!acquired)
342	RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() failed to take 'WebProcess was resumed' assertion for parent process", this);
343	}]);
344	m_processWasResumedUIAssertion.get().invalidationHandler = [this] {
345	RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateChanged() Releasing 'WebProcess was resumed' assertion on behalf on UIProcess due to invalidation", this);
346	releaseProcessWasResumedAssertions();
347	};
348	m_processWasResumedOwnAssertion = adoptNS([[BKSProcessAssertion alloc] initWithPID:getpid() flags:BKSProcessAssertionPreventTaskSuspend reason:BKSProcessAssertionReasonFinishTask name:@"WebProcess was resumed" withHandler:^(BOOL acquired) {
349	if (!acquired)
350	RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() failed to take 'WebProcess was resumed' assertion for WebContent process", this);
351	}]);
352	m_processWasResumedOwnAssertion.get().invalidationHandler = [this] {
353	RELEASE_LOG_ERROR(ProcessSuspension, "%p - WebProcess::processTaskStateChanged() Releasing 'WebProcess was resumed' assertion on behalf on WebContent process due to invalidation", this);
354	releaseProcessWasResumedAssertions();
355	};
356
357	parentProcessConnection()->sendWithAsyncReply(Messages::WebProcessProxy::ProcessWasResumed(), [this] {
358	RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processTaskStateDidChange() Parent process handled ProcessWasResumed IPC, releasing our assertions", this);
359	releaseProcessWasResumedAssertions();
360	});
361	}
362
363	void WebProcess::releaseProcessWasResumedAssertions()
364	{
365	LockHolder holder(m_processWasResumedAssertionsLock);
366	if (m_processWasResumedUIAssertion) {
367	RELEASE_LOG(ProcessSuspension, "%p - WebProcess::releaseProcessWasResumedAssertions() Releasing parent process 'WebProcess was resumed' assertion", this);
368	[m_processWasResumedUIAssertion invalidate];
369	m_processWasResumedUIAssertion = nullptr;
370	}
371	if (m_processWasResumedOwnAssertion) {
372	RELEASE_LOG(ProcessSuspension, "%p - WebProcess::releaseProcessWasResumedAssertions() Releasing WebContent process 'WebProcess was resumed' assertion", this);
373	[m_processWasResumedOwnAssertion invalidate];
374	m_processWasResumedOwnAssertion = nullptr;
375	}
376	}
377
378	#endif
379
380	#if PLATFORM(IOS_FAMILY)	326	#if PLATFORM(IOS_FAMILY)
381	static NSString *webProcessLoaderAccessibilityBundlePath()	327	static NSString *webProcessLoaderAccessibilityBundlePath()
382	{	328	{