Laurent Morichetti
92 wiersze
2.4 KiB
C++
92 wiersze
2.4 KiB
C++
/* Copyright (c) 2010-present Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE. */
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#include "platform/object.hpp"
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#include <cstring>
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namespace amd {
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Atomic<ObjectMetadata::Key> ObjectMetadata::nextKey_ = 1;
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ObjectMetadata::Destructor ObjectMetadata::destructors_[OCL_MAX_KEYS] = {NULL};
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bool ObjectMetadata::check(Key key) { return key > 0 && key <= OCL_MAX_KEYS; }
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ObjectMetadata::Key ObjectMetadata::createKey(Destructor destructor) {
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Key key = nextKey_++;
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if (!check(key)) {
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return 0;
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}
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destructors_[key - 1] = destructor;
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return key;
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}
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ObjectMetadata::~ObjectMetadata() {
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if (!values_) {
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return;
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}
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for (size_t i = 0; i < OCL_MAX_KEYS; ++i) {
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if (values_[i] && destructors_[i]) {
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destructors_[i](values_[i]);
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}
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}
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delete[] values_;
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}
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void* ObjectMetadata::getValueForKey(Key key) const {
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if (!values_ || !check(key)) {
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return NULL;
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}
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return values_[key - 1];
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}
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bool ObjectMetadata::setValueForKey(Key key, Value value) {
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if (!check(key)) {
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return false;
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}
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while (!values_) {
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Value* values = new Value[OCL_MAX_KEYS];
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memset(values, '\0', sizeof(Value) * OCL_MAX_KEYS);
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if (!values_.compareAndSet(NULL, values)) {
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delete[] values;
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}
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}
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size_t index = key - 1;
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Value prev = AtomicOperation::swap(value, &values_[index]);
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if (prev && destructors_[index] != NULL) {
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destructors_[index](prev);
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}
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return true;
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}
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} // namespace amd
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