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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /gfx/src/DriverCrashGuard.h | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/src/DriverCrashGuard.h')
| -rw-r--r-- | gfx/src/DriverCrashGuard.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/gfx/src/DriverCrashGuard.h b/gfx/src/DriverCrashGuard.h new file mode 100644 index 000000000..9a0c5851a --- /dev/null +++ b/gfx/src/DriverCrashGuard.h @@ -0,0 +1,182 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef gfx_src_DriverCrashGuard_h__
+#define gfx_src_DriverCrashGuard_h__
+
+#include "nsCOMPtr.h"
+#include "nsIGfxInfo.h"
+#include "nsIFile.h"
+#include "nsString.h"
+#include "mozilla/Function.h"
+#include <string>
+
+namespace mozilla {
+
+namespace dom {
+class ContentParent;
+} // namespace dom
+
+namespace gfx {
+
+enum class DriverInitStatus
+{
+ // Drivers have not been initialized yet.
+ Unknown,
+
+ // We're attempting to initialize drivers.
+ Attempting,
+
+ // Drivers were successfully initialized last run.
+ Okay,
+
+ // We crashed during driver initialization, and have restarted.
+ Crashed
+};
+
+enum class CrashGuardType : uint32_t
+{
+ D3D11Layers,
+ D3D9Video,
+ GLContext,
+ D3D11Video,
+ // Add new entries above this line, update the name array in
+ // DriverCrashGuard.cpp, and make sure to add an entry in
+ // ContentParent.cpp.
+
+ NUM_TYPES
+};
+
+// DriverCrashGuard is used to detect crashes at graphics driver callsites.
+//
+// If the graphics environment is unrecognized or has changed since the last
+// session, the crash guard will activate and will detect any crashes within
+// the scope of the guard object.
+//
+// If a callsite has a previously encountered crash, and the environment has
+// not changed since the last session, then the guard will set a status flag
+// indicating that the driver should not be used.
+class DriverCrashGuard
+{
+public:
+ DriverCrashGuard(CrashGuardType aType, dom::ContentParent* aContentParent);
+ virtual ~DriverCrashGuard();
+
+ bool Crashed();
+ void NotifyCrashed();
+
+ // These are the values reported to Telemetry (GRAPHICS_DRIVER_STARTUP_TEST).
+ // Values should not change; add new values to the end.
+ enum class TelemetryState {
+ Okay = 0,
+ EnvironmentChanged = 1,
+ RecoveredFromCrash = 2,
+ FeatureDisabled = 3
+ };
+
+ enum class Mode {
+ // Normal operation.
+ Normal,
+
+ // Acting as a proxy between the parent and child process.
+ Proxy
+ };
+
+ typedef mozilla::function<void(const char* aName, const char* aPrefName)>
+ CrashGuardCallback;
+ static void ForEachActiveCrashGuard(const CrashGuardCallback& aCallback);
+
+protected:
+ virtual void Initialize();
+ virtual bool UpdateEnvironment() = 0;
+ virtual void LogCrashRecovery() = 0;
+ virtual void LogFeatureDisabled() = 0;
+
+ // Helper functions.
+ bool FeatureEnabled(int aFeature, bool aDefault=true);
+ bool CheckAndUpdatePref(const char* aPrefName, const nsAString& aCurrentValue);
+ bool CheckAndUpdateBoolPref(const char* aPrefName, bool aCurrentValue);
+ std::string GetFullPrefName(const char* aPref);
+
+private:
+ // Either process.
+ void InitializeIfNeeded();
+ bool CheckOrRefreshEnvironment();
+ bool UpdateBaseEnvironment();
+ DriverInitStatus GetStatus() const;
+
+ // Parent process only.
+ nsCOMPtr<nsIFile> GetGuardFile();
+ bool RecoverFromCrash();
+ void ActivateGuard();
+ void FlushPreferences();
+ void SetStatus(DriverInitStatus aStatus);
+
+private:
+ CrashGuardType mType;
+ Mode mMode;
+ bool mInitialized;
+ bool mGuardActivated;
+ bool mCrashDetected;
+ nsCOMPtr<nsIFile> mGuardFile;
+
+protected:
+ nsCString mStatusPref;
+ nsCOMPtr<nsIGfxInfo> mGfxInfo;
+};
+
+class D3D11LayersCrashGuard final : public DriverCrashGuard
+{
+ public:
+ explicit D3D11LayersCrashGuard(dom::ContentParent* aContentParent = nullptr);
+
+ protected:
+ void Initialize() override;
+ bool UpdateEnvironment() override;
+ void LogCrashRecovery() override;
+ void LogFeatureDisabled() override;
+
+ private:
+ void RecordTelemetry(TelemetryState aState);
+};
+
+class D3D9VideoCrashGuard final : public DriverCrashGuard
+{
+ public:
+ explicit D3D9VideoCrashGuard(dom::ContentParent* aContentParent = nullptr);
+
+ protected:
+ bool UpdateEnvironment() override;
+ void LogCrashRecovery() override;
+ void LogFeatureDisabled() override;
+};
+
+class D3D11VideoCrashGuard final : public DriverCrashGuard
+{
+ public:
+ explicit D3D11VideoCrashGuard(dom::ContentParent* aContentParent = nullptr);
+
+ protected:
+ bool UpdateEnvironment() override;
+ void LogCrashRecovery() override;
+ void LogFeatureDisabled() override;
+};
+
+class GLContextCrashGuard final : public DriverCrashGuard
+{
+ public:
+ explicit GLContextCrashGuard(dom::ContentParent* aContentParent = nullptr);
+ void Initialize() override;
+
+ protected:
+ bool UpdateEnvironment() override;
+ void LogCrashRecovery() override;
+ void LogFeatureDisabled() override;
+};
+
+} // namespace gfx
+} // namespace mozilla
+
+#endif // gfx_src_DriverCrashGuard_h__
+
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