mirror of https://github.com/BOINC/boinc.git
144 lines
3.6 KiB
C++
144 lines
3.6 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC 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.
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// See the GNU 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 License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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#include "mem_usage.h"
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#if defined(_WIN32) && !defined(__STDWX_H__)
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#include "boinc_win.h"
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#elif defined(_WIN32) && defined(__STDWX_H__)
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#include "stdwx.h"
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#else
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#include "config.h"
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#if HAVE_PROCFS_H
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// Can't use large file calls with solaris procfs.
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#if defined(_FILE_OFFSET_BITS) && ( _FILE_OFFSET_BITS == 64 )
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#undef _FILE_OFFSET_BITS
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#undef _LARGE_FILES
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#undef _LARGEFILE_SOURCE
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#undef _LARGEFILE64_SOURCE
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#endif
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#endif
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#include <cstdio>
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#include <cstring>
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#include <cstdlib>
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#include <unistd.h>
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#if HAVE_PROCFS_H
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#include <procfs.h> // definitions for solaris /proc structs
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#endif
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#endif
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#include "error_numbers.h"
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using std::FILE;
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using std::fread;
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using std::fopen;
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using std::fclose;
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int mem_usage(double& vm_usage, double& resident_set) {
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#ifdef _WIN32
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// Figure out if we're on WinNT
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OSVERSIONINFO osvi;
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osvi.dwOSVersionInfoSize = sizeof(osvi);
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GetVersionEx( &osvi );
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if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) {
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SIZE_T lpMinimumWorkingSetSize;
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SIZE_T lpMaximumWorkingSetSize;
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GetProcessWorkingSetSize(
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GetCurrentProcess(),
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&lpMinimumWorkingSetSize,
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&lpMaximumWorkingSetSize
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);
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vm_usage = (double)lpMinimumWorkingSetSize;
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resident_set = (double)lpMaximumWorkingSetSize;
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} else {
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return ERR_NOT_IMPLEMENTED;
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}
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return 0;
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#else
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#if HAVE_PROCFS_H && HAVE__PROC_SELF_PSINFO
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FILE* f;
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// guess that this is solaris
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// need psinfo_t from procfs.h
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//
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if ((f = fopen("/proc/self/psinfo", "r")) != 0) {
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psinfo_t psinfo;
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if (fread(&psinfo, sizeof(psinfo_t), 1, f) == 1) {
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vm_usage = psinfo.pr_size*1024.;
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resident_set = psinfo.pr_rssize*1024.;
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fclose(f);
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return 0;
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} else {
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fclose(f);
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return ERR_FREAD;
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}
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}
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#endif
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#if HAVE__PROC_SELF_STAT
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FILE* f;
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// guess that this is linux
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//
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if ((f = fopen("/proc/self/stat", "r")) != 0) {
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char buf[256];
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char* p;
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int i;
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unsigned long tmp;
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i = fread(buf, sizeof(char), 255, f);
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buf[i] = '\0'; // terminate string
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p = &buf[0];
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// skip over first 22 fields
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//
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for (i = 0; i < 22; ++i) {
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p = strchr(p, ' ');
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if (!p) break;
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++p; // move past space
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}
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if (!p) {
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return ERR_NOT_IMPLEMENTED;
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}
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// read virtual memory size in bytes.
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//
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vm_usage = atof(p);
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p = strchr(p, ' ');
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// read resident set size: number of pages the process has in
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// real memory, minus 3 for administrative purposes.
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//
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tmp = strtol(p, 0, 0);
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resident_set = (double)(tmp + 3)*getpagesize();
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fclose(f);
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return 0;
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}
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#endif
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return ERR_NOT_IMPLEMENTED;
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#endif
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}
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