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/*
*
* Copyright 2018 gRPC authors.
*
* 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.
*
*/
#include <grpc/support/port_platform.h>
#ifdef GPR_WINDOWS
#include <windows.h>
#include <cstdint>
#include "src/cpp/server/load_reporter/get_cpu_stats.h"
namespace grpc {
namespace load_reporter {
namespace {
uint64_t FiletimeToInt(const FILETIME& ft) {
ULARGE_INTEGER i;
i.LowPart = ft.dwLowDateTime;
i.HighPart = ft.dwHighDateTime;
return i.QuadPart;
}
} // namespace
std::pair<uint64_t, uint64_t> GetCpuStatsImpl() {
uint64_t busy = 0, total = 0;
FILETIME idle, kernel, user;
if (GetSystemTimes(&idle, &kernel, &user) != 0) {
total = FiletimeToInt(kernel) + FiletimeToInt(user);
busy = total - FiletimeToInt(idle);
}
return std::make_pair(busy, total);
}
} // namespace load_reporter
} // namespace grpc
#endif // GPR_WINDOWS
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