aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/cpp/server/load_reporter/get_cpu_stats_linux.cc
blob: 9c1fd0cd0b8948bac566a1eafe65dd10c9bba2a8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/*
 *
 * 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_LINUX

#include <cstdio>

#include "src/cpp/server/load_reporter/get_cpu_stats.h"

namespace grpc {
namespace load_reporter {

std::pair<uint64_t, uint64_t> GetCpuStatsImpl() {
  uint64_t busy = 0, total = 0;
  FILE* fp;
  fp = fopen("/proc/stat", "r");
  uint64_t user, nice, system, idle;
  fscanf(fp, "cpu %lu %lu %lu %lu", &user, &nice, &system, &idle);
  fclose(fp);
  busy = user + nice + system;
  total = busy + idle;
  return std::make_pair(busy, total);
}

}  // namespace load_reporter
}  // namespace grpc

#endif  // GPR_LINUX