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Unified Diff: blimp/client/app/blimp_discardable_memory_allocator.h

Issue 2624903006: Remove all blimp client code. (Closed)
Patch Set: Update buildbot configuration Created 3 years, 11 months ago
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Index: blimp/client/app/blimp_discardable_memory_allocator.h
diff --git a/blimp/client/app/blimp_discardable_memory_allocator.h b/blimp/client/app/blimp_discardable_memory_allocator.h
deleted file mode 100644
index 24d1f1f560286cd3eaac126efd334da469579e5f..0000000000000000000000000000000000000000
--- a/blimp/client/app/blimp_discardable_memory_allocator.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BLIMP_CLIENT_APP_BLIMP_DISCARDABLE_MEMORY_ALLOCATOR_H_
-#define BLIMP_CLIENT_APP_BLIMP_DISCARDABLE_MEMORY_ALLOCATOR_H_
-
-#include <list>
-#include <memory>
-
-#include "base/macros.h"
-#include "base/memory/discardable_memory_allocator.h"
-#include "base/synchronization/lock.h"
-
-namespace blimp {
-namespace client {
-
-// TODO(khushalsagar): See if we can share this implementation with html_viewer.
-// A discardable memory allocator which will unallocate chunks on new
-// allocations or as old chunks are unlocked.
-class BlimpDiscardableMemoryAllocator :
- public base::DiscardableMemoryAllocator {
- public:
- BlimpDiscardableMemoryAllocator();
- explicit BlimpDiscardableMemoryAllocator(size_t desired_max_memory);
- ~BlimpDiscardableMemoryAllocator() override;
-
- // Overridden from DiscardableMemoryAllocator:
- std::unique_ptr<base::DiscardableMemory> AllocateLockedDiscardableMemory(
- size_t size) override;
-
- private:
- class DiscardableMemoryChunkImpl;
- friend class DiscardableMemoryChunkImpl;
-
- typedef std::list<DiscardableMemoryChunkImpl*> MemoryChunkList;
-
- // Called by DiscardableMemoryChunkImpl when they are unlocked. This puts them
- // at the end of the live_unlocked_chunks_ list and passes an iterator to
- // their position in the unlocked chunk list.
- MemoryChunkList::iterator NotifyUnlocked(
- DiscardableMemoryChunkImpl* chunk);
-
- // Called by DiscardableMemoryChunkImpl when they are locked. This removes the
- // passed in unlocked chunk list.
- void NotifyLocked(MemoryChunkList::iterator it);
-
- // Called by DiscardableMemoryChunkImpl when it's destructed. It must be
- // unlocked, by definition.
- void NotifyDestructed(MemoryChunkList::iterator it);
-
- // Unallocate unlocked chunks if the total live memory is higher than the
- // desired max memory.
- void FreeUnlockedChunksIfNeeded();
-
- // The amount of memory we can allocate before we try to free unlocked
- // chunks. We can go over this amount if all callers keep their discardable
- // chunks locked.
- const size_t desired_max_memory_;
-
- // Protects all members below, since this class can be called on the main
- // thread and impl side painting raster threads.
- base::Lock lock_;
-
- // A count of the sum of memory. Used to trigger discarding the oldest
- // memory.
- size_t total_live_memory_;
-
- // The number of locked chunks.
- int locked_chunks_;
-
- // A linked list of unlocked allocated chunks so that the tail is most
- // recently accessed chunks.
- MemoryChunkList live_unlocked_chunks_;
-
- DISALLOW_COPY_AND_ASSIGN(BlimpDiscardableMemoryAllocator);
-};
-
-} // namespace client
-} // namespace blimp
-
-#endif // BLIMP_CLIENT_APP_BLIMP_DISCARDABLE_MEMORY_ALLOCATOR_H_

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