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rocm-systems/include/rdc_lib/impl/RdcCacheManagerImpl.h
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/*
Copyright (c) 2020 - present Advanced Micro Devices, Inc. All rights reserved.
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 RDC_LIB_IMPL_RDCCACHEMANAGERIMPL_H_
#define RDC_LIB_IMPL_RDCCACHEMANAGERIMPL_H_
#include <memory>
#include <mutex>
#include <vector>
#include <map>
#include "rdc_lib/RdcCacheManager.h"
#include "rdc_lib/rdc_common.h"
#include "rdc/rdc.h"
namespace amd {
namespace rdc {
struct RdcCacheEntry {
uint64_t last_time;
int64_t value;
};
typedef std::map<RdcFieldKey, std::vector<RdcCacheEntry>> RdcCacheSamples;
class RdcCacheManagerImpl: public RdcCacheManager {
public:
rdc_status_t rdc_get_latest_value_for_field(uint32_t gpu_index,
uint32_t field, rdc_field_value* value) override;
rdc_status_t rdc_get_field_value_since(uint32_t gpu_index, uint32_t field,
uint64_t since_time_stamp, uint64_t *next_since_time_stamp,
rdc_field_value* value) override;
rdc_status_t rdc_update_cache(uint32_t gpu_index,
const rdc_field_value& value) override;
rdc_status_t evict_cache(uint32_t gpu_index, uint32_t field_id,
uint64_t max_keep_samples, double max_keep_age) override;
uint32_t get_cache_size() override;
private:
RdcCacheSamples cache_samples_;
std::mutex cache_mutex_;
};
} // namespace rdc
} // namespace amd
#endif // RDC_LIB_IMPL_RDCCACHEMANAGERIMPL_H_