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#include "platform.h"
#if defined(__APPLE__) && defined(__MACH__)
#include <mach/mach.h>
#endif
#ifdef _win_
#include "winint.h"
#include <psapi.h>
#else
#include <sys/time.h>
#include <sys/resource.h>
#endif
#include <util/generic/yexception.h>
#include "info.h"
#include "rusage.h"
#ifdef _win_
TDuration FiletimeToDuration(const FILETIME& ft) {
union {
ui64 ft_scalar;
FILETIME ft_struct;
} nt_time;
nt_time.ft_struct = ft;
return TDuration::MicroSeconds(nt_time.ft_scalar / 10);
}
#endif
size_t TRusage::GetCurrentRSS() {
/*
* Author: David Robert Nadeau
* Site: http://NadeauSoftware.com/
* License: Creative Commons Attribution 3.0 Unported License
* http://creativecommons.org/licenses/by/3.0/deed.en_US
*/
#if defined(_WIN32)
/* Windows -------------------------------------------------- */
PROCESS_MEMORY_COUNTERS info;
GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info));
return (size_t)info.WorkingSetSize;
#elif defined(__APPLE__) && defined(__MACH__)
/* OSX ------------------------------------------------------ */
struct mach_task_basic_info info;
mach_msg_type_number_t infoCount = MACH_TASK_BASIC_INFO_COUNT;
if (task_info(mach_task_self(), MACH_TASK_BASIC_INFO,
(task_info_t)&info, &infoCount) != KERN_SUCCESS)
return (size_t)0L; /* Can't access? */
return (size_t)info.resident_size;
#elif defined(__linux__) || defined(__linux) || defined(linux) || defined(__gnu_linux__)
/* Linux ---------------------------------------------------- */
long rss = 0L;
FILE* fp = nullptr;
if ((fp = fopen("/proc/self/statm", "r")) == nullptr) {
return (size_t)0L; /* Can't open? */
}
if (fscanf(fp, "%*s%ld", &rss) != 1) {
fclose(fp);
return (size_t)0L; /* Can't read? */
}
fclose(fp);
return (size_t)rss * (size_t)sysconf(_SC_PAGESIZE);
#else
/* AIX, BSD, Solaris, and Unknown OS ------------------------ */
return (size_t)0L; /* Unsupported. */
#endif
}
void TRusage::Fill() {
*this = TRusage();
#ifdef _win_
// copy-paste from PostgreSQL getrusage.c
FILETIME starttime;
FILETIME exittime;
FILETIME kerneltime;
FILETIME usertime;
if (GetProcessTimes(GetCurrentProcess(), &starttime, &exittime, &kerneltime, &usertime) == 0) {
ythrow TSystemError() << "GetProcessTimes failed";
}
Utime = FiletimeToDuration(usertime);
Stime = FiletimeToDuration(kerneltime);
PROCESS_MEMORY_COUNTERS pmc;
if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)) == 0) {
ythrow TSystemError() << "GetProcessMemoryInfo failed";
}
MaxRss = pmc.PeakWorkingSetSize;
MajorPageFaults = pmc.PageFaultCount;
#else
struct rusage ru;
int r = getrusage(RUSAGE_SELF, &ru);
if (r < 0) {
ythrow TSystemError() << "rusage failed";
}
#if defined(_darwin_)
// see https://lists.apple.com/archives/darwin-kernel/2009/Mar/msg00005.html
MaxRss = ru.ru_maxrss;
#else
MaxRss = ru.ru_maxrss * 1024LL;
#endif
MajorPageFaults = ru.ru_majflt;
Utime = ru.ru_utime;
Stime = ru.ru_stime;
#endif
}
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