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DeviceMemory.cpp
/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD+Patents license found in the
* LICENSE file in the root directory of this source tree.
*/
// Copyright 2004-present Facebook. All Rights Reserved.
#include "DeviceMemory.h"
#include "DeviceUtils.h"
#include "../../FaissAssert.h"
namespace faiss { namespace gpu {
DeviceMemoryReservation::DeviceMemoryReservation()
: state_(NULL),
device_(0),
data_(NULL),
size_(0),
stream_(0) {
}
DeviceMemoryReservation::DeviceMemoryReservation(DeviceMemory* state,
int device,
void* p,
size_t size,
cudaStream_t stream)
: state_(state),
device_(device),
data_(p),
size_(size),
stream_(stream) {
}
DeviceMemoryReservation::DeviceMemoryReservation(
DeviceMemoryReservation&& m) noexcept {
if (data_) {
FAISS_ASSERT(state_);
state_->returnAllocation(*this);
}
state_ = m.state_;
device_ = m.device_;
data_ = m.data_;
size_ = m.size_;
stream_ = m.stream_;
m.data_ = NULL;
}
DeviceMemoryReservation::~DeviceMemoryReservation() {
if (data_) {
FAISS_ASSERT(state_);
state_->returnAllocation(*this);
}
data_ = NULL;
}
DeviceMemoryReservation&
DeviceMemoryReservation::operator=(DeviceMemoryReservation&& m) {
if (data_) {
FAISS_ASSERT(state_);
state_->returnAllocation(*this);
}
state_ = m.state_;
device_ = m.device_;
data_ = m.data_;
size_ = m.size_;
stream_ = m.stream_;
m.data_ = NULL;
return *this;
}
DeviceMemory::~DeviceMemory() {
}
} } // namespace