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/*
* Copyright (C) 2018-2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if OS(DARWIN)
#if !PLATFORM(IOS_FAMILY_SIMULATOR) && __has_include(<libproc.h>)
# include <libproc.h>
# if RUSAGE_INFO_CURRENT >= 4
# define HAS_MAX_FOOTPRINT
# if defined(RLIMIT_FOOTPRINT_INTERVAL) && __has_include(<libproc_internal.h>) && PLATFORM(COCOA)
# define HAS_RESET_FOOTPRINT_INTERVAL
# define MAX_FOOTPRINT_FIELD ri_interval_max_phys_footprint
# include <libproc_internal.h>
# else
# define MAX_FOOTPRINT_FIELD ri_lifetime_max_phys_footprint
# endif
# else
# define HAS_ONLY_PHYS_FOOTPRINT
# endif
#endif
struct ProcessMemoryFootprint {
public:
uint64_t current;
uint64_t peak;
static ProcessMemoryFootprint now()
{
#ifdef HAS_MAX_FOOTPRINT
rusage_info_v4 rusage;
if (proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&rusage))
return { 0L, 0L };
return { rusage.ri_phys_footprint, rusage.MAX_FOOTPRINT_FIELD };
#elif defined(HAS_ONLY_PHYS_FOOTPRINT)
rusage_info_v0 rusage;
if (proc_pid_rusage(getpid(), RUSAGE_INFO_V0, (rusage_info_t *)&rusage))
return { 0L, 0L };
return { rusage.ri_phys_footprint, 0L };
#else
return { 0L, 0L };
#endif
}
static void resetPeak()
{
#ifdef HAS_RESET_FOOTPRINT_INTERVAL
proc_reset_footprint_interval(getpid());
#endif
}
};
#endif
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