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, 88 insertions, 0 deletions

diff --git a/src/runtime/MemoryManagerOnDemand.cpp b/src/runtime/MemoryManagerOnDemand.cpp
new file mode 100644
index 0000000000..4dfa28bddb
--- /dev/null
+++ b/src/runtime/MemoryManagerOnDemand.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+#include "arm_compute/runtime/MemoryManagerOnDemand.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/runtime/ILifetimeManager.h"
+#include "arm_compute/runtime/IPoolManager.h"
+
+#include <memory>
+
+using namespace arm_compute;
+
+MemoryManagerOnDemand::MemoryManagerOnDemand(std::shared_ptr<ILifetimeManager> lifetime_manager, std::shared_ptr<IPoolManager> pool_manager)
+    : _lifetime_mgr(std::move(lifetime_manager)), _pool_mgr(std::move(pool_manager)), _allocator(nullptr), _is_finalized(false), _num_pools(1)
+{
+    ARM_COMPUTE_ERROR_ON_MSG(!_lifetime_mgr, "Lifetime manager not specified correctly!");
+    ARM_COMPUTE_ERROR_ON_MSG(!_pool_mgr, "Pool manager not specified correctly!");
+}
+
+bool MemoryManagerOnDemand::is_finalized() const
+{
+    return _is_finalized;
+}
+
+void MemoryManagerOnDemand::set_num_pools(unsigned int num_pools)
+{
+    ARM_COMPUTE_ERROR_ON(num_pools == 0);
+    _num_pools = num_pools;
+}
+
+void MemoryManagerOnDemand::set_allocator(IAllocator *allocator)
+{
+    ARM_COMPUTE_ERROR_ON_MSG(is_finalized(), "Memory manager is already finalized!");
+    ARM_COMPUTE_ERROR_ON(allocator == nullptr);
+    _allocator = allocator;
+}
+
+ILifetimeManager *MemoryManagerOnDemand::lifetime_manager()
+{
+    return _lifetime_mgr.get();
+}
+
+IPoolManager *MemoryManagerOnDemand::pool_manager()
+{
+    return _pool_mgr.get();
+}
+
+void MemoryManagerOnDemand::finalize()
+{
+    ARM_COMPUTE_ERROR_ON_MSG(is_finalized(), "Memory manager is already finalized!");
+    ARM_COMPUTE_ERROR_ON(!_lifetime_mgr);
+    ARM_COMPUTE_ERROR_ON(!_pool_mgr);
+    ARM_COMPUTE_ERROR_ON_MSG(!_lifetime_mgr->are_all_finalized(), "All the objects have not been finalized! ");
+    ARM_COMPUTE_ERROR_ON(_allocator == nullptr);
+
+    // Create pools
+    auto pool_template = _lifetime_mgr->create_pool(_allocator);
+    for(int i = _num_pools; i > 1; --i)
+    {
+        auto pool = pool_template->duplicate();
+        _pool_mgr->register_pool(std::move(pool));
+    }
+    _pool_mgr->register_pool(std::move(pool_template));
+
+    // Set finalized to true
+    _is_finalized = true;
+}