Laurent Morichetti
76 baris
1.4 KiB
C++
76 baris
1.4 KiB
C++
//
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// Copyright (c) 2010 Advanced Micro Devices, Inc. All rights reserved.
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//
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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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