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/*
* Copyright (c) 2021,2023 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>
#include <tuple>
struct AclContext_
{
arm_compute::detail::Header header{arm_compute::detail::ObjectType::Context, nullptr};
protected:
AclContext_() = default;
~AclContext_() = default;
};
namespace arm_compute
{
// Forward declarations
class ITensorV2;
class IQueue;
class IOperator;
/**< 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;
}
/** Create a tensor object
*
* @param[in] desc Descriptor to use
* @param[in] allocate Flag to allocate tensor
*
* @return A pointer to the created tensor object
*/
virtual ITensorV2 *create_tensor(const AclTensorDescriptor &desc, bool allocate) = 0;
/** Create a queue object
*
* @param[in] options Queue options to be used
*
* @return A pointer to the created queue object
*/
virtual IQueue *create_queue(const AclQueueOptions *options) = 0;
virtual std::tuple<IOperator *, StatusCode> create_activation(const AclTensorDescriptor &src,
const AclTensorDescriptor &dst,
const AclActivationDescriptor &act,
bool is_validate) = 0;
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 */
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