/* This file is part of the MPIR Library. The MPIR Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The MPIR Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the MPIR Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #define WIN32_LEAN_AND_MEAN #include <windows.h> #include <psapi.h> #include <errno.h> #include "getrusage.h" typedef union file_t { FILETIME ft; long long lt; } file_t; int getrusage(int who, rusage *usage) { HANDLE proc_hand; file_t c_time, x_time, s_time, u_time; int cb = 0, err = -1; if(who != RUSAGE_SELF) { errno = (who == RUSAGE_CHILDREN ? ENODATA : EINVAL); return err; } proc_hand = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, GetCurrentProcessId()); if(GetProcessTimes(proc_hand, &(c_time.ft), &(x_time.ft), &(s_time.ft), &(u_time.ft))) { PROCESS_MEMORY_COUNTERS ctrs; /* The units returned by GetProcessTimes are 100 nanoseconds */ u_time.lt = (u_time.lt + 5) / 10; s_time.lt = (s_time.lt + 5) / 10; usage->ru_utime.tv_sec = (long)(u_time.lt / 1000000ll); usage->ru_stime.tv_sec = (long)(s_time.lt / 1000000ll); usage->ru_utime.tv_usec = (long)(u_time.lt % 1000000ll); usage->ru_stime.tv_usec = (long)(s_time.lt % 1000000ll); if(GetProcessMemoryInfo(proc_hand, &ctrs, sizeof(ctrs))) { PERFORMANCE_INFORMATION perf_info; GetPerformanceInfo(&perf_info, sizeof(perf_info)); usage->ru_maxrss = (DWORD) (ctrs.WorkingSetSize / perf_info.PageSize); usage->ru_majflt = ctrs.PageFaultCount; err = 0; } } if(err) errno = EACCES; CloseHandle(proc_hand); return err; }