fix: Detecting ANRs as false OOMs

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- fix: Detecting ANRs as false OOMs (#1695)
+
 ## 7.10.2
 
 fix: Crash in UIViewControllerSwizzling (#1692)

Samples/iOS-Swift/iOS-Swift.xcodeproj/project.pbxproj

@@ -31,7 +31,7 @@
 		D8269A58274C0FC700BD5BD5 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 637AFDAD243B02760034958B /* ViewController.swift */; };
 		D8269A59274C100300BD5BD5 /* Sentry.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 630853322440C44F00DDE4CE /* Sentry.framework */; };
 		D8269A5A274C100300BD5BD5 /* Sentry.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 630853322440C44F00DDE4CE /* Sentry.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		D83A30C8279EFD6E00372D0A /* clearTestState.swift in Sources */ = {isa = PBXBuildFile; fileRef = D83A30C7279EFD6E00372D0A /* clearTestState.swift */; };
+		D83A30C8279EFD6E00372D0A /* ClearTestState.swift in Sources */ = {isa = PBXBuildFile; fileRef = D83A30C7279EFD6E00372D0A /* ClearTestState.swift */; };
 		D83A30D1279F0A7C00372D0A /* Sentry.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 630853322440C44F00DDE4CE /* Sentry.framework */; };
 		D83A30D8279F159D00372D0A /* Sentry.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 630853322440C44F00DDE4CE /* Sentry.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		D83A30DC279F16BA00372D0A /* Sentry.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 630853322440C44F00DDE4CE /* Sentry.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
@@ -205,7 +205,7 @@
 		D8269A42274C095F00BD5BD5 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		D8269A49274C096000BD5BD5 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		D8269A5C274C108100BD5BD5 /* iOS13-Swift.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = "iOS13-Swift.entitlements"; sourceTree = "<group>"; };
-		D83A30C7279EFD6E00372D0A /* clearTestState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = clearTestState.swift; sourceTree = "<group>"; };
+		D83A30C7279EFD6E00372D0A /* ClearTestState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ClearTestState.swift; sourceTree = "<group>"; };
 		D83A30DF279F1F5C00372D0A /* fatal-error-binary-images-message2.json */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.json; name = "fatal-error-binary-images-message2.json"; path = "../../../Tests/Resources/fatal-error-binary-images-message2.json"; sourceTree = "<group>"; };
 		D83A30E5279FE21F00372D0A /* SentryFileIOTrackingIntegrationTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = SentryFileIOTrackingIntegrationTests.swift; path = ../../../Tests/SentryTests/Integrations/Performance/IO/SentryFileIOTrackingIntegrationTests.swift; sourceTree = "<group>"; };
 		D840D520273A07F400CDF142 /* iOS-SwiftClip.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "iOS-SwiftClip.app"; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -345,7 +345,7 @@
 				D83A30DF279F1F5C00372D0A /* fatal-error-binary-images-message2.json */,
 				7B64386A26A6C544000D0F65 /* LaunchUITests.swift */,
 				D83A30E5279FE21F00372D0A /* SentryFileIOTrackingIntegrationTests.swift */,
-				D83A30C7279EFD6E00372D0A /* clearTestState.swift */,
+				D83A30C7279EFD6E00372D0A /* ClearTestState.swift */,
 				7B64386C26A6C544000D0F65 /* Info.plist */,
 			);
 			path = "iOS-SwiftUITests";
@@ -684,7 +684,7 @@
 			files = (
 				D83A30E6279FE21F00372D0A /* SentryFileIOTrackingIntegrationTests.swift in Sources */,
 				7B64386B26A6C544000D0F65 /* LaunchUITests.swift in Sources */,
-				D83A30C8279EFD6E00372D0A /* clearTestState.swift in Sources */,
+				D83A30C8279EFD6E00372D0A /* ClearTestState.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

Samples/iOS-Swift/iOS-Swift/Base.lproj/Main.storyboard

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="19529" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="5CD-RQ-aBU">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="20037" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="5CD-RQ-aBU">
     <device id="retina6_1" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="19519"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="20020"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
@@ -18,7 +18,7 @@
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
                             <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="480-5y-FtF">
-                                <rect key="frame" x="8" y="188" width="398" height="574.5"/>
+                                <rect key="frame" x="8" y="158" width="398" height="634.5"/>
                                 <subviews>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="QJW-l9-sD6">
                                         <rect key="frame" x="0.0" y="0.0" width="398" height="30"/>
@@ -85,54 +85,68 @@
                                             <action selector="oomCrash:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Oju-om-O6e"/>
                                         </connections>
                                     </button>
-                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="xur-X2-ih4">
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Yi7-GN-26l">
                                         <rect key="frame" x="0.0" y="270" width="398" height="30"/>
+                                        <state key="normal" title="ANR fully blocking"/>
+                                        <connections>
+                                            <action selector="anrFullyBlocking:" destination="BYZ-38-t0r" eventType="touchUpInside" id="dJy-Fs-khK"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="TSF-10-5ts">
+                                        <rect key="frame" x="0.0" y="300" width="398" height="30"/>
+                                        <state key="normal" title="ANR filling run loop"/>
+                                        <connections>
+                                            <action selector="anrFillingRunLoop:" destination="BYZ-38-t0r" eventType="touchUpInside" id="13D-io-hVz"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="xur-X2-ih4">
+                                        <rect key="frame" x="0.0" y="330" width="398" height="30"/>
                                         <state key="normal" title="async crash"/>
                                         <connections>
                                             <action selector="asyncCrash:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Mqi-sE-R7d"/>
                                         </connections>
                                     </button>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="cdR-H3-8fr">
-                                        <rect key="frame" x="0.0" y="300" width="398" height="30"/>
+                                        <rect key="frame" x="0.0" y="360" width="398" height="30"/>
                                         <state key="normal" title="Capture Transaction"/>
                                         <connections>
                                             <action selector="captureTransaction:" destination="BYZ-38-t0r" eventType="touchUpInside" id="kff-pT-Uf4"/>
                                         </connections>
                                     </button>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="8CV-WC-ffq">
-                                        <rect key="frame" x="0.0" y="330" width="398" height="30"/>
+                                        <rect key="frame" x="0.0" y="390" width="398" height="30"/>
                                         <accessibility key="accessibilityConfiguration" identifier="testNavigationTransactionButton"/>
                                         <state key="normal" title="Test Navigation Transaction"/>
                                         <connections>
                                             <segue destination="cay-7M-Gvd" kind="show" id="boD-GG-VVF"/>
                                         </connections>
                                     </button>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LvU-yx-01i">
-                                        <rect key="frame" x="0.0" y="360" width="398" height="30"/>
+                                        <rect key="frame" x="0.0" y="420" width="398" height="30"/>
                                         <accessibility key="accessibilityConfiguration" identifier="showNibButton"/>
                                         <state key="normal" title="Show Nib"/>
                                         <connections>
                                             <action selector="showNibController:" destination="BYZ-38-t0r" eventType="touchUpInside" id="E8m-GA-zvY"/>
                                         </connections>
                                     </button>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="RjO-LN-eHj">
-                                        <rect key="frame" x="0.0" y="390" width="398" height="30"/>
+                                        <rect key="frame" x="0.0" y="450" width="398" height="30"/>
                                         <accessibility key="accessibilityConfiguration" identifier="showTableViewButton"/>
                                         <state key="normal" title="Show TableView"/>
                                         <connections>
                                             <action selector="showTableViewController:" destination="BYZ-38-t0r" eventType="touchUpInside" id="u6U-9d-UMi"/>
                                         </connections>
                                     </button>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="ok0-hq-2kK">
-                                        <rect key="frame" x="0.0" y="420" width="398" height="30"/>
+                                        <rect key="frame" x="0.0" y="480" width="398" height="30"/>
                                         <accessibility key="accessibilityConfiguration" identifier="showSplitViewButton"/>
                                         <state key="normal" title="Show SplitView"/>
                                         <connections>
                                             <segue destination="DGj-BO-BQ5" kind="presentation" id="G2z-UO-upZ"/>
                                         </connections>
                                     </button>
                                     <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="UrL-kT-AJU">
-                                        <rect key="frame" x="0.0" y="450" width="398" height="124.5"/>
+                                        <rect key="frame" x="0.0" y="510" width="398" height="124.5"/>
                                         <subviews>
                                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="DSN  " textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="m3h-wb-Xfa">
                                                 <rect key="frame" x="8" y="32" width="382" height="20.5"/>
@@ -172,6 +186,8 @@
                     </view>
                     <navigationItem key="navigationItem" title="Sentry Test App (Swift)" id="Ddh-Ww-vzM"/>
                     <connections>
+                        <outlet property="anrFillingRunLoopButton" destination="TSF-10-5ts" id="Qp6-8q-IPH"/>
+                        <outlet property="anrFullyBlockingButton" destination="Yi7-GN-26l" id="tMf-U3-onN"/>
                         <outlet property="dsnTextField" destination="L2a-LY-eQ7" id="TWn-0u-2v7"/>
                     </connections>
                 </viewController>

Samples/iOS-Swift/iOS-Swift/ViewController.swift

@@ -4,6 +4,8 @@ import UIKit
 class ViewController: UIViewController {
 
     @IBOutlet weak var dsnTextField: UITextField!
+    @IBOutlet weak var anrFullyBlockingButton: UIButton!
+    @IBOutlet weak var anrFillingRunLoopButton: UIButton!
 
     private let dispatchQueue = DispatchQueue(label: "ViewController")
 
@@ -49,7 +51,7 @@ class ViewController: UIViewController {
         SentrySDK.addBreadcrumb(crumb: crumb)
     }
 
-    @IBAction func captureMessage(_ sender: Any) {        
+    @IBAction func captureMessage(_ sender: Any) {
         let eventId = SentrySDK.capture(message: "Yeah captured a message")
         // Returns eventId in case of successfull processed event
         // otherwise nil
@@ -149,6 +151,40 @@ class ViewController: UIViewController {
         }
     }
 
+    @IBAction func anrFullyBlocking(_ sender: Any) {
+        let buttonTitle = self.anrFullyBlockingButton.currentTitle
+        var i = 0
+
+        for _ in 0...5_000_000 {
+            i += Int.random(in: 0...10)
+            i -= 1
+
+            self.anrFullyBlockingButton.setTitle("\(i)", for: .normal)
+        }
+
+        self.anrFullyBlockingButton.setTitle(buttonTitle, for: .normal)
+    }
+
+    @IBAction func anrFillingRunLoop(_ sender: Any) {
+        let buttonTitle = self.anrFillingRunLoopButton.currentTitle
+        var i = 0
+
+        dispatchQueue.async {
+            for _ in 0...100_000 {
+                i += Int.random(in: 0...10)
+                i -= 1
+
+                DispatchQueue.main.async {
+                    self.anrFillingRunLoopButton.setTitle("Work in Progress \(i)", for: .normal)
+                }
+            }
+
+            DispatchQueue.main.async {
+                self.anrFillingRunLoopButton.setTitle(buttonTitle, for: .normal)
+            }
+        }
+    }
+
     @IBAction func dsnChanged(_ sender: UITextField) {
         let options = Options()
         options.dsn = sender.text