2 * Copyright (c) 2014 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 #include <sys/resource.h>
25 VLOG_DEFINE_THIS_MODULE(getrusage_windows);
28 usage_to_timeval(FILETIME *ft, struct timeval *tv)
31 time.LowPart = ft->dwLowDateTime;
32 time.HighPart = ft->dwHighDateTime;
34 tv->tv_sec = time.QuadPart / 10000000;
35 tv->tv_usec = (time.QuadPart % 10000000) / 10;
39 getrusage(int who, struct rusage *usage)
41 FILETIME creation_time, exit_time, kernel_time, user_time;
42 PROCESS_MEMORY_COUNTERS pmc;
44 memset(usage, 0, sizeof(struct rusage));
46 if (who == RUSAGE_SELF) {
47 if (!GetProcessTimes(GetCurrentProcess(), &creation_time, &exit_time,
48 &kernel_time, &user_time)) {
49 VLOG_ERR("failed at GetProcessTimes: %s",
50 ovs_lasterror_to_string());
54 if (!GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc))) {
55 VLOG_ERR("failed at GetProcessMemoryInfo: %s",
56 ovs_lasterror_to_string());
60 usage_to_timeval(&kernel_time, &usage->ru_stime);
61 usage_to_timeval(&user_time, &usage->ru_utime);
62 usage->ru_majflt = pmc.PageFaultCount;
63 usage->ru_maxrss = pmc.PeakWorkingSetSize / 1024;
65 } else if (who == RUSAGE_THREAD) {
66 if (!GetThreadTimes(GetCurrentThread(), &creation_time, &exit_time,
67 &kernel_time, &user_time)) {
68 VLOG_ERR("failed at GetThreadTimes: %s",
69 ovs_lasterror_to_string());
72 usage_to_timeval(&kernel_time, &usage->ru_stime);
73 usage_to_timeval(&user_time, &usage->ru_utime);