/*******************************************************************************
* Copyright 2016-2018 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
#ifndef CPU_MEMORY_HPP
#define CPU_MEMORY_HPP
#include <assert.h>
#include "c_types_map.hpp"
#include "memory.hpp"
#include "memory_desc_wrapper.hpp"
#include "cpu_engine.hpp"
namespace mkldnn {
namespace impl {
namespace cpu {
struct cpu_memory_t: public memory_t {
cpu_memory_t(cpu_engine_t *engine, const memory_desc_t *md, void *handle)
: memory_t(engine, md)
, own_data_(handle == MKLDNN_NATIVE_HANDLE_ALLOCATE)
, data_((char *)handle) {}
cpu_memory_t(cpu_engine_t *engine, const memory_desc_t *md)
: cpu_memory_t(engine, md, nullptr) {}
~cpu_memory_t() { if (own_data_) free(data_); }
virtual status_t init() override {
if (own_data_) {
data_ = nullptr;
const size_t size = memory_desc_wrapper(this->md()).size();
if (size) {
data_ = (char *)malloc(size, 64);
if (data_ == nullptr)
return status::out_of_memory;
}
}
return zero_pad();
}
cpu_engine_t *engine() const { return (cpu_engine_t *)memory_t::engine(); }<--- C-style pointer casting [+]C-style pointer casting detected. C++ offers four different kinds of casts as replacements: static_cast, const_cast, dynamic_cast and reinterpret_cast. A C-style cast could evaluate to any of those automatically, thus it is considered safer if the programmer explicitly states which kind of cast is expected. See also: https://www.securecoding.cert.org/confluence/display/cplusplus/EXP05-CPP.+Do+not+use+C-style+casts.
virtual status_t get_data_handle(void **handle) const override {
*handle = static_cast<void *>(data_);
return status::success;
}
virtual mkldnn::impl::status_t set_data_handle(void *handle) override {
if (own_data_) { free(data_); own_data_ = false; }
data_ = static_cast<char *>(handle);
return zero_pad();
}
virtual mkldnn::impl::status_t zero_pad() const override;
private:
bool own_data_;
char *data_;
template <mkldnn::impl::data_type_t>
mkldnn::impl::status_t typed_zero_pad() const;
cpu_memory_t(const cpu_memory_t &) = delete;
cpu_memory_t &operator=(const cpu_memory_t &) = delete;
cpu_memory_t &operator=(cpu_memory_t &&) = delete;
};
}
}
}
#endif
// vim: et ts=4 sw=4 cindent cino^=l0,\:0,N-s