69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
/**
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* @file llprocinfo.h
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* @brief Interface to process/cpu/resource information services.
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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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#ifndef LL_PROCINFO_H
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#define LL_PROCINFO_H
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#include "linden_common.h"
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/// @file llprocinfo.h
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///
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/// Right now, this is really a namespace disguised as a class.
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/// It wraps some types and functions to return information about
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/// process resource consumption in a non-OS-specific manner.
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///
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/// Threading: No instances so that's thread-safe. Implementations
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/// of static functions should be thread-safe, they mostly involve
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/// direct syscall invocations.
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///
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/// Allocation: Not instantiatable.
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class LL_COMMON_API LLProcInfo
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{
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public:
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/// Public types
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typedef U64 time_type; /// Relative microseconds
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private:
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LLProcInfo(); // Not defined
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~LLProcInfo(); // Not defined
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LLProcInfo(const LLProcInfo &); // Not defined
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void operator=(const LLProcInfo &); // Not defined
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public:
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/// Get accumulated system and user CPU time in
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/// microseconds. Syscalls involved in every invocation.
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///
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/// Threading: expected to be safe.
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static void getCPUUsage(time_type & user_time, time_type & system_time);
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};
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#endif // LL_PROCINFO_H
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