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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2018 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
#define SHOW_TIMING 0
#include "config.h"
#include <cstdio>
#include <ctype.h>
#include <sys/types.h>
#include <dirent.h>
#include <unistd.h>
#if SHOW_TIMING
#include <Carbon/Carbon.h>
#include "client_msgs.h"
#endif
#include "error_numbers.h"
#include "procinfo.h"
#include "mac_branding.h"
using std::vector;
// build table of all processes in system
//
int procinfo_setup(PROC_MAP& pm) {
int pid = getpid();
FILE* fd;
PROCINFO p;
int c, real_mem, virtual_mem, hours;
char* lf;
static long iBrandID = -1;
// For branded installs, the Mac installer put a branding file in our data directory
FILE *f = fopen("/Library/Application Support/BOINC Data/Branding", "r");
if (f) {
fscanf(f, "BrandId=%ld\n", &iBrandID);
fclose(f);
}
if ((iBrandID < 0) || (iBrandID > (NUMBRANDS-1))) {
iBrandID = 0;
}
#if SHOW_TIMING
UnsignedWide start, end, elapsed;
start = UpTime();
#endif
// Some values of possible interest available from 'ps' command:
// %cpu percentage cpu usage (alias pcpu)
// %mem percentage memory usage (alias pmem)
// command command (executable name)
// majflt total page faults
// minflt total page reclaims
// nswap total swaps in/out
// pagein pageins (same as majflt)
// pid process ID
// ppid parent process ID
// poip pageouts in progress
// pri scheduling priority
// rss resident set size in Kbytes
// time accumulated cpu time, user + system
// vsz virtual size in Kbytes
//
// Unfortunately, the selectors majflt, minflt, pagein do not work on OS X,
// and ps does not return kernel time separately from user time.
//
// Earlier versions of procinf_mac.C launched a small helper application
// AppStats using a bi-directional pipe. AppStats used mach ports to get
// all the information, including page fault counts, kernel and user times.
// In order to use mach ports, AppStats must run setuid root.
//
// But these three items are not actually used (page fault counts aren't
// available from Windows either) so we have reverted to using the ps
// utility, even though it takes more cpu time than AppStats did.
// This eliminates the need to install our own application which runs setuid
// root; this was perceived by some users as a security risk.
// Under OS 10.8.x (only) ps writes a spurious warning to stderr if called
// from a process that has the DYLD_LIBRARY_PATH environment variable set.
// "env -i command" prevents the command from inheriting the caller's
// environment, which avoids the spurious warning.
fd = popen("env -i ps -axcopid,ppid,rss,vsz,pagein,time,command", "r");
if (!fd) return ERR_FOPEN;
// Skip over the header line
do {
c = fgetc(fd);
if (c == EOF) {
pclose(fd);
return ERR_GETS;
}
} while (c != '\n');
while (1) {
p.clear();
c = fscanf(fd, "%d%d%d%d%lu%d:%lf ",
&p.id,
&p.parentid,
&real_mem,
&virtual_mem,
&p.page_fault_count,
&hours,
&p.user_time
);
if (c < 7) break;
if (fgets(p.command, sizeof(p.command) , fd) == NULL) break;
lf = strchr(p.command, '\n');
if (lf) *lf = '\0'; // Strip trailing linefeed
p.working_set_size = (double)real_mem * 1024.;
p.swap_size = (double)virtual_mem * 1024.;
p.user_time += 60. * (float)hours;
p.is_boinc_app = (p.id == pid || strcasestr(p.command, "boinc"));
// Ideally, we should count ScreenSaverEngine.app as a BOINC process
// only if BOINC is set as the screensaver. We could set a flag in
// the client when the get_screensaver_tasks rpc is called, but that
// would not be 100% reliable for several reasons.
if (strcasestr(p.command, "screensaverengine")) p.is_boinc_app = true;
// We do not mark Mac processes as low priority because some processes
// (e.g., Finder) change priority frequently, which would cause
// procinfo_non_boinc() and ACTIVE_TASK_SET::get_memory_usage() to get
// incorrect results for the % CPU used.
p.is_low_priority = false;
if (!strcasestr(p.command, brandName[iBrandID])) {
p.is_boinc_app = true;
}
pm.insert(std::pair<int, PROCINFO>(p.id, p));
}
pclose(fd);
#if SHOW_TIMING
end = UpTime();
elapsed = AbsoluteToNanoseconds(SubAbsoluteFromAbsolute(end, start));
msg_printf(NULL, MSG_INFO, "elapsed time = %llu, m_swap = %lf\n", elapsed, gstate.host_info.m_swap);
#endif
find_children(pm);
return 0;
}
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