| /* |
| * Copyright (c) 2017-2020 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/ISimpleLifetimeManager.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/runtime/IAllocator.h" |
| #include "arm_compute/runtime/IMemory.h" |
| #include "arm_compute/runtime/IMemoryGroup.h" |
| #include "arm_compute/runtime/IMemoryPool.h" |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <map> |
| #include <vector> |
| |
| namespace arm_compute |
| { |
| ISimpleLifetimeManager::ISimpleLifetimeManager() |
| : _active_group(nullptr), _active_elements(), _free_blobs(), _occupied_blobs(), _finalized_groups() |
| { |
| } |
| |
| void ISimpleLifetimeManager::register_group(IMemoryGroup *group) |
| { |
| if(_active_group == nullptr) |
| { |
| ARM_COMPUTE_ERROR_ON(group == nullptr); |
| _active_group = group; |
| } |
| } |
| |
| bool ISimpleLifetimeManager::release_group(IMemoryGroup *group) |
| { |
| if(group == nullptr) |
| { |
| return false; |
| } |
| const bool status = bool(_finalized_groups.erase(group)); |
| if(status) |
| { |
| group->mappings().clear(); |
| } |
| return status; |
| } |
| |
| void ISimpleLifetimeManager::start_lifetime(void *obj) |
| { |
| ARM_COMPUTE_ERROR_ON(obj == nullptr); |
| ARM_COMPUTE_ERROR_ON_MSG(_active_elements.find(obj) != std::end(_active_elements), "Memory object is already registered!"); |
| |
| // Check if there is a free blob |
| if(_free_blobs.empty()) |
| { |
| _occupied_blobs.emplace_front(Blob{ obj, 0, 0, { obj } }); |
| } |
| else |
| { |
| _occupied_blobs.splice(std::begin(_occupied_blobs), _free_blobs, std::begin(_free_blobs)); |
| _occupied_blobs.front().id = obj; |
| } |
| |
| // Insert object in groups and mark its finalized state to false |
| _active_elements.insert(std::make_pair(obj, obj)); |
| } |
| |
| void ISimpleLifetimeManager::end_lifetime(void *obj, IMemory &obj_memory, size_t size, size_t alignment) |
| { |
| ARM_COMPUTE_ERROR_ON(obj == nullptr); |
| |
| // Find object |
| auto active_object_it = _active_elements.find(obj); |
| ARM_COMPUTE_ERROR_ON(active_object_it == std::end(_active_elements)); |
| |
| // Update object fields and mark object as complete |
| Element &el = active_object_it->second; |
| el.handle = &obj_memory; |
| el.size = size; |
| el.alignment = alignment; |
| el.status = true; |
| |
| // Find object in the occupied lists |
| auto occupied_blob_it = std::find_if(std::begin(_occupied_blobs), std::end(_occupied_blobs), [&obj](const Blob & b) |
| { |
| return obj == b.id; |
| }); |
| ARM_COMPUTE_ERROR_ON(occupied_blob_it == std::end(_occupied_blobs)); |
| |
| // Update occupied blob and return as free |
| occupied_blob_it->bound_elements.insert(obj); |
| occupied_blob_it->max_size = std::max(occupied_blob_it->max_size, size); |
| occupied_blob_it->max_alignment = std::max(occupied_blob_it->max_alignment, alignment); |
| occupied_blob_it->id = nullptr; |
| _free_blobs.splice(std::begin(_free_blobs), _occupied_blobs, occupied_blob_it); |
| |
| // Check if all objects are finalized and reset active group |
| if(are_all_finalized()) |
| { |
| ARM_COMPUTE_ERROR_ON(!_occupied_blobs.empty()); |
| |
| // Update blobs and group mappings |
| update_blobs_and_mappings(); |
| |
| // Update finalized groups |
| _finalized_groups[_active_group].insert(std::begin(_active_elements), std::end(_active_elements)); |
| |
| // Reset state |
| _active_elements.clear(); |
| _active_group = nullptr; |
| _free_blobs.clear(); |
| } |
| } |
| |
| bool ISimpleLifetimeManager::are_all_finalized() const |
| { |
| return !std::any_of(std::begin(_active_elements), std::end(_active_elements), [](const std::pair<void *, Element> &e) |
| { |
| return !e.second.status; |
| }); |
| } |
| } // namespace arm_compute |