1 files changed, 0 insertions, 212 deletions
diff --git a/ipc/glue/CrashReporterMetadataShmem.cpp b/ipc/glue/CrashReporterMetadataShmem.cpp
deleted file mode 100644
index 5b889948b..000000000
--- a/ipc/glue/CrashReporterMetadataShmem.cpp
+++ /dev/null
@@ -1,212 +0,0 @@
-/* -*- 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/. */
-
-#include "CrashReporterMetadataShmem.h"
-#include "mozilla/Attributes.h"
-#include "nsISupportsImpl.h"
-
-namespace mozilla {
-namespace ipc {
-
-enum class EntryType : uint8_t {
-  None,
-  Annotation,
-};
-
-CrashReporterMetadataShmem::CrashReporterMetadataShmem(const Shmem& aShmem)
- : mShmem(aShmem)
-{
-  MOZ_COUNT_CTOR(CrashReporterMetadataShmem);
-}
-
-CrashReporterMetadataShmem::~CrashReporterMetadataShmem()
-{
-  MOZ_COUNT_DTOR(CrashReporterMetadataShmem);
-}
-
-void
-CrashReporterMetadataShmem::AnnotateCrashReport(const nsCString& aKey, const nsCString& aData)
-{
-  mNotes.Put(aKey, aData);
-  SyncNotesToShmem();
-}
-
-void
-CrashReporterMetadataShmem::AppendAppNotes(const nsCString& aData)
-{
-  mAppNotes.Append(aData);
-  mNotes.Put(NS_LITERAL_CSTRING("Notes"), mAppNotes);
-  SyncNotesToShmem();
-}
-
-class MOZ_STACK_CLASS MetadataShmemWriter
-{
-public:
-  explicit MetadataShmemWriter(const Shmem& aShmem)
-   : mCursor(aShmem.get<uint8_t>()),
-     mEnd(mCursor + aShmem.Size<uint8_t>())
-  {
-    *mCursor = uint8_t(EntryType::None);
-  }
-
-  MOZ_MUST_USE bool WriteAnnotation(const nsCString& aKey, const nsCString& aValue) {
-    // This shouldn't happen because Commit() guarantees mCursor < mEnd. But
-    // we might as well be safe.
-    if (mCursor >= mEnd) {
-      return false;
-    }
-
-    // Save the current position so we can write the entry type if the entire
-    // entry fits.
-    uint8_t* start = mCursor++;
-    if (!Write(aKey) || !Write(aValue)) {
-      return false;
-    }
-    return Commit(start, EntryType::Annotation);
-  }
-
-private:
-  // On success, append a new terminal byte. On failure, rollback the cursor.
-  MOZ_MUST_USE bool Commit(uint8_t* aStart, EntryType aType) {
-    MOZ_ASSERT(aStart < mEnd);
-    MOZ_ASSERT(EntryType(*aStart) == EntryType::None);
-
-    if (mCursor >= mEnd) {
-      // No room for a terminating byte - rollback.
-      mCursor = aStart;
-      return false;
-    }
-
-    // Commit the entry and write a new terminal byte.
-    *aStart = uint8_t(aType);
-    *mCursor = uint8_t(EntryType::None);
-    return true;
-  }
-
-  MOZ_MUST_USE bool Write(const nsCString& aString) {
-    // 32-bit length is okay since our shmems are very small (16K),
-    // a huge write would fail anyway.
-    return Write(static_cast<uint32_t>(aString.Length())) &&
-           Write(aString.get(), aString.Length());
-  }
-
-  template <typename T>
-  MOZ_MUST_USE bool Write(const T& aT) {
-    return Write(&aT, sizeof(T));
-  }
-
-  MOZ_MUST_USE bool Write(const void* aData, size_t aLength) {
-    if (size_t(mEnd - mCursor) < aLength) {
-      return false;
-    }
-    memcpy(mCursor, aData, aLength);
-    mCursor += aLength;
-    return true;
-  }
-
- private:
-  // The cursor (beginning at start) always points to a single byte
-  // representing the next EntryType. An EntryType is either None,
-  // indicating there are no more entries, or Annotation, meaning
-  // two strings follow.
-  //
-  // Strings are written as a 32-bit length and byte sequence. After each new
-  // entry, a None entry is always appended, and a subsequent entry will
-  // overwrite this byte.
-  uint8_t* mCursor;
-  uint8_t* mEnd;
-};
-
-void
-CrashReporterMetadataShmem::SyncNotesToShmem()
-{
-  MetadataShmemWriter writer(mShmem);
-
-  for (auto it = mNotes.Iter(); !it.Done(); it.Next()) {
-    nsCString key = nsCString(it.Key());
-    nsCString value = nsCString(it.Data());
-    if (!writer.WriteAnnotation(key, value)) {
-      return;
-    }
-  }
-}
-
-// Helper class to iterate over metadata entries encoded in shmem.
-class MOZ_STACK_CLASS MetadataShmemReader
-{
-public:
-  explicit MetadataShmemReader(const Shmem& aShmem)
-   : mEntryType(EntryType::None)
-  {
-    mCursor = aShmem.get<uint8_t>();
-    mEnd = mCursor + aShmem.Size<uint8_t>();
-
-    // Advance to the first item, if any.
-    Next();
-  }
-
-  bool Done() const {
-    return mCursor >= mEnd || Type() == EntryType::None;
-  }
-  EntryType Type() const {
-    return mEntryType;
-  }
-  void Next() {
-    if (mCursor < mEnd) {
-      mEntryType = EntryType(*mCursor++);
-    } else {
-      mEntryType = EntryType::None;
-    }
-  }
-
-  bool Read(nsCString& aOut) {
-    uint32_t length = 0;
-    if (!Read(&length)) {
-      return false;
-    }
-
-    const uint8_t* src = Read(length);
-    if (!src) {
-      return false;
-    }
-
-    aOut.Assign((const char *)src, length);
-    return true;
-  }
-
-private:
-  template <typename T>
-  bool Read(T* aOut) {
-    return Read(aOut, sizeof(T));
-  }
-  bool Read(void* aOut, size_t aLength) {
-    const uint8_t* src = Read(aLength);
-    if (!src) {
-      return false;
-    }
-    memcpy(aOut, src, aLength);
-    return true;
-  }
-
-  // If buffer has |aLength| bytes, return cursor and then advance it.
-  // Otherwise, return null.
-  const uint8_t* Read(size_t aLength) {
-    if (size_t(mEnd - mCursor) < aLength) {
-      return nullptr;
-    }
-    const uint8_t* result = mCursor;
-    mCursor += aLength;
-    return result;
-  }
-
-private:
-  const uint8_t* mCursor;
-  const uint8_t* mEnd;
-  EntryType mEntryType;
-};
-
-} // namespace ipc
-} // namespace mozilla