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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /ipc/glue/CrashReporterClient.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'ipc/glue/CrashReporterClient.h')
-rw-r--r--ipc/glue/CrashReporterClient.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/ipc/glue/CrashReporterClient.h b/ipc/glue/CrashReporterClient.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 mozilla_ipc_CrashReporterClient_h
+#define mozilla_ipc_CrashReporterClient_h
+
+#include "mozilla/StaticMutex.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/Unused.h"
+#include "mozilla/ipc/Shmem.h"
+
+namespace mozilla {
+namespace ipc {
+
+class CrashReporterMetadataShmem;
+
+class CrashReporterClient
+{
+public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CrashReporterClient);
+
+ // |aTopLevelProtocol| must be a top-level protocol instance, as sub-actors
+ // do not have AllocUnsafeShmem. It must also have a child-to-parent message:
+ //
+ // async SetCrashReporterClient(Shmem shmem);
+ //
+ // The parent-side receive function of this message should save the shmem
+ // somewhere, and when the top-level actor's ActorDestroy runs (or when the
+ // crash reporter needs metadata), the shmem should be parsed.
+ template <typename T>
+ static bool InitSingleton(T* aToplevelProtocol) {
+ // 16KB should be enough for most metadata - see bug 1278717 comment #11.
+ static const size_t kShmemSize = 16 * 1024;
+
+ Shmem shmem;
+ bool rv = aToplevelProtocol->AllocUnsafeShmem(
+ kShmemSize,
+ SharedMemory::TYPE_BASIC,
+ &shmem);
+ if (!rv) {
+ return false;
+ }
+
+ InitSingletonWithShmem(shmem);
+ Unused << aToplevelProtocol->SendInitCrashReporter(shmem);
+ return true;
+ }
+
+ static void DestroySingleton();
+ static RefPtr<CrashReporterClient> GetSingleton();
+
+ void AnnotateCrashReport(const nsCString& aKey, const nsCString& aData);
+ void AppendAppNotes(const nsCString& aData);
+
+private:
+ explicit CrashReporterClient(const Shmem& aShmem);
+ ~CrashReporterClient();
+
+ static void InitSingletonWithShmem(const Shmem& aShmem);
+
+private:
+ static StaticMutex sLock;
+ static StaticRefPtr<CrashReporterClient> sClientSingleton;
+
+private:
+ UniquePtr<CrashReporterMetadataShmem> mMetadata;
+};
+
+} // namespace ipc
+} // namespace mozilla
+
+#endif // mozilla_ipc_CrashReporterClient_h
+