95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/**
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* @file llprocinfo.cpp
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* @brief Process, cpu and resource usage information APIs.
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* @author monty@lindenlab.com
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*
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* $LicenseInfo:firstyear=2013&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2013, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "llprocinfo.h"
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#if LL_WINDOWS
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#define PSAPI_VERSION 1
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#include "windows.h"
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#include "psapi.h"
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#elif LL_DARWIN
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#include <sys/resource.h>
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#include <mach/mach.h>
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#else
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#include <sys/time.h>
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#include <sys/resource.h>
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#endif // LL_WINDOWS/LL_DARWIN
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// static
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void LLProcInfo::getCPUUsage(time_type & user_time, time_type & system_time)
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{
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#if LL_WINDOWS
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HANDLE self(GetCurrentProcess()); // Does not have to be closed
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FILETIME ft_dummy, ft_system, ft_user;
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GetProcessTimes(self, &ft_dummy, &ft_dummy, &ft_system, &ft_user);
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ULARGE_INTEGER uli;
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uli.u.LowPart = ft_system.dwLowDateTime;
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uli.u.HighPart = ft_system.dwHighDateTime;
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system_time = uli.QuadPart / U64L(10); // Convert to uS
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uli.u.LowPart = ft_user.dwLowDateTime;
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uli.u.HighPart = ft_user.dwHighDateTime;
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user_time = uli.QuadPart / U64L(10);
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#elif LL_DARWIN
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struct rusage usage;
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if (getrusage(RUSAGE_SELF, &usage))
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{
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user_time = system_time = time_type(0U);
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return;
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}
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user_time = U64(usage.ru_utime.tv_sec) * U64L(1000000) + usage.ru_utime.tv_usec;
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system_time = U64(usage.ru_stime.tv_sec) * U64L(1000000) + usage.ru_stime.tv_usec;
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#else // Linux
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struct rusage usage;
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if (getrusage(RUSAGE_SELF, &usage))
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{
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user_time = system_time = time_type(0U);
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return;
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}
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user_time = U64(usage.ru_utime.tv_sec) * U64L(1000000) + usage.ru_utime.tv_usec;
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system_time = U64(usage.ru_stime.tv_sec) * U64L(1000000) + usage.ru_stime.tv_usec;
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#endif // LL_WINDOWS/LL_DARWIN/Linux
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}
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