57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
// Copyright 2014 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 MOJO_EDK_SYSTEM_MAPPING_TABLE_H_
|
|
#define MOJO_EDK_SYSTEM_MAPPING_TABLE_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "base/containers/hash_tables.h"
|
|
#include "base/macros.h"
|
|
#include "mojo/edk/system/system_impl_export.h"
|
|
#include "mojo/public/c/system/types.h"
|
|
|
|
namespace mojo {
|
|
|
|
namespace edk {
|
|
class Core;
|
|
class PlatformSharedBufferMapping;
|
|
|
|
// Test-only function (defined/used in embedder/test_embedder.cc). Declared here
|
|
// so it can be friended.
|
|
namespace internal {
|
|
bool ShutdownCheckNoLeaks(Core*);
|
|
}
|
|
|
|
// This class provides the (global) table of memory mappings (owned by |Core|),
|
|
// which maps mapping base addresses to |PlatformSharedBufferMapping|s.
|
|
//
|
|
// This class is NOT thread-safe; locking is left to |Core|.
|
|
class MOJO_SYSTEM_IMPL_EXPORT MappingTable {
|
|
public:
|
|
MappingTable();
|
|
~MappingTable();
|
|
|
|
// Tries to add a mapping. (Takes ownership of the mapping in all cases; on
|
|
// failure, it will be destroyed.)
|
|
MojoResult AddMapping(std::unique_ptr<PlatformSharedBufferMapping> mapping);
|
|
MojoResult RemoveMapping(void* address);
|
|
|
|
private:
|
|
friend bool internal::ShutdownCheckNoLeaks(Core*);
|
|
|
|
using AddressToMappingMap =
|
|
base::hash_map<void*, PlatformSharedBufferMapping*>;
|
|
AddressToMappingMap address_to_mapping_map_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(MappingTable);
|
|
};
|
|
|
|
} // namespace edk
|
|
} // namespace mojo
|
|
|
|
#endif // MOJO_EDK_SYSTEM_MAPPING_TABLE_H_
|