COMPMID-485: Memory Manager

Change-Id: Ib421b7622838f050038cd81e7426bb1413a7d6e6
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/87376
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/arm_compute/runtime/MemoryManagerOnDemand.h b/arm_compute/runtime/MemoryManagerOnDemand.h
new file mode 100644
index 0000000000..ad4b831e1f
--- /dev/null
+++ b/arm_compute/runtime/MemoryManagerOnDemand.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+#ifndef __ARM_COMPUTE_MEMORYMANAGERONDEMAND_H__
+#define __ARM_COMPUTE_MEMORYMANAGERONDEMAND_H__
+
+#include "arm_compute/runtime/IMemoryManager.h"
+
+#include "IAllocator.h"
+#include "arm_compute/runtime/ILifetimeManager.h"
+#include "arm_compute/runtime/IMemoryGroup.h"
+#include "arm_compute/runtime/IPoolManager.h"
+
+#include <memory>
+#include <set>
+
+namespace arm_compute
+{
+class IAllocator;
+
+/** On-demand memory manager */
+class MemoryManagerOnDemand : public IMemoryManager
+{
+public:
+    /** Default Constructor */
+    MemoryManagerOnDemand(std::shared_ptr<ILifetimeManager> lifetime_manager, std::shared_ptr<IPoolManager> pool_manager);
+    /** Prevent instances of this class to be copy constructed */
+    MemoryManagerOnDemand(const MemoryManagerOnDemand &) = delete;
+    /** Prevent instances of this class to be copied */
+    MemoryManagerOnDemand &operator=(const MemoryManagerOnDemand &) = delete;
+    /** Allow instances of this class to be move constructed */
+    MemoryManagerOnDemand(MemoryManagerOnDemand &&) = default;
+    /** Allow instances of this class to be moved */
+    MemoryManagerOnDemand &operator=(MemoryManagerOnDemand &&) = default;
+    /** Sets the number of pools to create
+     *
+     * @param[in] num_pools Number of pools
+     */
+    void set_num_pools(unsigned int num_pools);
+    /** Sets the allocator to be used for configuring the pools
+     *
+     * @param[in] allocator Allocator to use
+     */
+    void set_allocator(IAllocator *allocator);
+    /** Checks if the memory manager has been finalized
+     *
+     * @return True if the memory manager has been finalized else false
+     */
+    bool is_finalized() const;
+
+    // Inherited methods overridden:
+    ILifetimeManager *lifetime_manager() override;
+    IPoolManager     *pool_manager() override;
+    void              finalize() override;
+
+private:
+    std::shared_ptr<ILifetimeManager> _lifetime_mgr; /**< Lifetime manager */
+    std::shared_ptr<IPoolManager>     _pool_mgr;     /**< Memory pool manager */
+    IAllocator                       *_allocator;    /**< Allocator used for backend allocations */
+    bool                              _is_finalized; /**< Flag that notes if the memory manager has been finalized */
+    unsigned int                      _num_pools;    /**< Number of pools to create */
+};
+} // arm_compute
+#endif /*__ARM_COMPUTE_MEMORYMANAGERONDEMAND_H__ */