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RUM-5248 feat: send memory warning as RUM error
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30 changes: 30 additions & 0 deletions
30
DatadogRUM/Sources/Instrumentation/MemoryWarnings/MemoryWarning.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| /* | ||
| * Unless explicitly stated otherwise all files in this repository are licensed under the Apache License Version 2.0. | ||
| * This product includes software developed at Datadog (https://www.datadoghq.com/). | ||
| * Copyright 2019-Present Datadog, Inc. | ||
| */ | ||
|
|
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| import Foundation | ||
| import DatadogInternal | ||
| import UIKit | ||
|
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| /// Represents a memory warning | ||
| internal struct MemoryWarning { | ||
| /// The date when the memory warning was received. | ||
| let date: Date | ||
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| /// The backtrace at the moment of memory warning. | ||
| let backtrace: BacktraceReport? | ||
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| /// Creates a new instance of `MemoryWarning | ||
| /// - Parameters: | ||
| /// - date: Date when the memory warning was received. | ||
| /// - backtrace: Backtrace at the moment of memory warning. | ||
| init( | ||
| date: Date, | ||
| backtrace: BacktraceReport? | ||
| ) { | ||
| self.date = date | ||
| self.backtrace = backtrace | ||
| } | ||
| } |
50 changes: 50 additions & 0 deletions
50
DatadogRUM/Sources/Instrumentation/MemoryWarnings/MemoryWarningMonitor.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /* | ||
| * Unless explicitly stated otherwise all files in this repository are licensed under the Apache License Version 2.0. | ||
| * This product includes software developed at Datadog (https://www.datadoghq.com/). | ||
| * Copyright 2019-Present Datadog, Inc. | ||
| */ | ||
|
|
||
| import Foundation | ||
| import DatadogInternal | ||
| import UIKit | ||
|
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| /// Tracks the memory warnings history and publishes it to the subscribers. | ||
| internal final class MemoryWarningMonitor { | ||
| let notificationCenter: NotificationCenter | ||
| let backtraceReporter: BacktraceReporting? | ||
| let reporter: MemoryWarningReporting | ||
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| init( | ||
| backtraceReporter: BacktraceReporting?, | ||
| memoryWarningReporter: MemoryWarningReporting, | ||
| notificationCenter: NotificationCenter = .default | ||
| ) { | ||
| self.notificationCenter = notificationCenter | ||
| self.backtraceReporter = backtraceReporter | ||
| self.reporter = memoryWarningReporter | ||
| } | ||
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| /// Starts monitoring memory warnings by subscribing to `UIApplication.didReceiveMemoryWarningNotification`. | ||
| func start() { | ||
| notificationCenter.addObserver(self, selector: #selector(didReceiveMemoryWarning), name: UIApplication.didReceiveMemoryWarningNotification, object: nil) | ||
| } | ||
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| @objc | ||
| func didReceiveMemoryWarning() { | ||
| let date: Date = .init() | ||
| let backtrace: BacktraceReport? | ||
| do { | ||
| backtrace = try backtraceReporter?.generateBacktrace() | ||
| } catch { | ||
| backtrace = nil | ||
| } | ||
| let warning = MemoryWarning(date: date, backtrace: backtrace) | ||
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| reporter.report(warning: warning) | ||
| } | ||
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| /// Stops monitoring memory warnings. | ||
| func stop() { | ||
| notificationCenter.removeObserver(self) | ||
| } | ||
| } |
50 changes: 50 additions & 0 deletions
50
DatadogRUM/Sources/Instrumentation/MemoryWarnings/MemoryWarningReporter.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /* | ||
| * Unless explicitly stated otherwise all files in this repository are licensed under the Apache License Version 2.0. | ||
| * This product includes software developed at Datadog (https://www.datadoghq.com/). | ||
| * Copyright 2019-2020 Datadog, Inc. | ||
| */ | ||
|
|
||
| import Foundation | ||
| import DatadogInternal | ||
| import UIKit | ||
|
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| /// Defines operations used for reporting memory warnings. | ||
| internal protocol MemoryWarningReporting: RUMCommandPublisher { | ||
| /// Reports the given memory warning. | ||
| /// - Parameter warning: The memory warning to report. | ||
| func report(warning: MemoryWarning) | ||
| } | ||
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| /// Receives memory warnings and reports them as RUM errors. | ||
| internal class MemoryWarningReporter: MemoryWarningReporting { | ||
| enum Constants { | ||
| /// The standardized `error.message` for RUM errors describing a memory warning. | ||
| static let memoryWarningErrorMessage = "Memory Warning" | ||
| /// The standardized `error.type` for RUM errors describing a memory warning. | ||
| static let memoryWarningErrorType = "MemoryWarning" | ||
| /// The standardized `error.stack` when backtrace generation was not available. | ||
| static let memoryWarningStackNotAvailableErrorMessage = "Stack trace was not generated because `DatadogCrashReporting` had not been enabled." | ||
| } | ||
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| private(set) weak var subscriber: RUMCommandSubscriber? | ||
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| /// Reports the given memory warning as a RUM error. | ||
| /// - Parameter warning: The memory warning to report. | ||
| func report(warning: MemoryWarning) { | ||
| let command = RUMAddCurrentViewMemoryWarningCommand( | ||
| time: warning.date, | ||
| attributes: [:], | ||
| message: Constants.memoryWarningErrorMessage, | ||
| type: Constants.memoryWarningErrorType, | ||
| stack: warning.backtrace?.stack ?? Constants.memoryWarningStackNotAvailableErrorMessage, | ||
| threads: warning.backtrace?.threads, | ||
| binaryImages: warning.backtrace?.binaryImages, | ||
| isStackTraceTruncated: warning.backtrace?.wasTruncated | ||
| ) | ||
| subscriber?.process(command: command) | ||
| } | ||
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| func publish(to subscriber: any RUMCommandSubscriber) { | ||
| self.subscriber = subscriber | ||
| } | ||
| } |
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