/*
 * Copyright (c) 2017, Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#pragma once
#include <cstdint>
#include <map>
#include <mutex>

namespace OCLRT {
class Device;
class GraphicsAllocation;
class CommandStreamReceiver;
class MemoryManager;

class SVMAllocsManager {
  public:
    class MapBasedAllocationTracker {
      public:
        void insert(GraphicsAllocation &);
        void remove(GraphicsAllocation &);
        GraphicsAllocation *get(const void *);
        size_t getNumAllocs() const { return allocs.size(); };

      protected:
        std::map<const void *, GraphicsAllocation *> allocs;
    };

    SVMAllocsManager(MemoryManager *memoryManager);
    void *createSVMAlloc(size_t size, bool coherent = false);
    GraphicsAllocation *getSVMAlloc(const void *ptr);
    void freeSVMAlloc(void *ptr);
    size_t getNumAllocs() const { return SVMAllocs.getNumAllocs(); }

  protected:
    MapBasedAllocationTracker SVMAllocs;
    MemoryManager *memoryManager;
    std::mutex mtx;
};
} // namespace OCLRT