| /* |
| * Copyright (c) 2021 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 SRC_COMMON_ICONTEXT_H |
| #define SRC_COMMON_ICONTEXT_H |
| |
| #include "src/common/Types.h" |
| #include "src/common/utils/Log.h" |
| #include "src/common/utils/Object.h" |
| |
| #include <atomic> |
| |
| struct AclContext_ |
| { |
| arm_compute::detail::Header header{ arm_compute::detail::ObjectType::Context, nullptr }; |
| |
| protected: |
| AclContext_() = default; |
| ~AclContext_() = default; |
| }; |
| |
| namespace arm_compute |
| { |
| /**< Context interface */ |
| class IContext : public AclContext_ |
| { |
| public: |
| IContext(Target target) |
| : AclContext_(), _target(target), _refcount(0) |
| { |
| } |
| /** Virtual Destructor */ |
| virtual ~IContext() |
| { |
| header.type = detail::ObjectType::Invalid; |
| }; |
| /** Target type accessor |
| * |
| * @return Target that the context is associated with |
| */ |
| Target type() const |
| { |
| return _target; |
| } |
| /** Increment context refcount */ |
| void inc_ref() const |
| { |
| ++_refcount; |
| } |
| /** Decrement context refcount */ |
| void dec_ref() const |
| { |
| --_refcount; |
| } |
| /** Reference counter accessor |
| * |
| * @return The number of references pointing to this object |
| */ |
| int refcount() const |
| { |
| return _refcount; |
| } |
| /** Checks if an object is valid |
| * |
| * @return True if sucessful otherwise false |
| */ |
| bool is_valid() const |
| { |
| return header.type == detail::ObjectType::Context; |
| } |
| |
| private: |
| Target _target; /**< Target type of context */ |
| mutable std::atomic<int> _refcount; /**< Reference counter */ |
| }; |
| |
| /** Extract internal representation of a Context |
| * |
| * @param[in] ctx Opaque context pointer |
| * |
| * @return The internal representation as an IContext |
| */ |
| inline IContext *get_internal(AclContext ctx) |
| { |
| return static_cast<IContext *>(ctx); |
| } |
| |
| namespace detail |
| { |
| /** Check if an internal context is valid |
| * |
| * @param[in] ctx Internal context to check |
| * |
| * @return A status code |
| */ |
| inline StatusCode validate_internal_context(const IContext *ctx) |
| { |
| if(ctx == nullptr || !ctx->is_valid()) |
| { |
| ARM_COMPUTE_LOG_ERROR_ACL("Invalid context object"); |
| return StatusCode::InvalidArgument; |
| } |
| return StatusCode::Success; |
| } |
| } // namespace detail |
| } // namespace arm_compute |
| #endif /* SRC_COMMON_ICONTEXT_H */ |