/**
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* @note Copyright (C) 2013 Philippe Gerum <rpm@xenomai.org>.
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*
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* Xenomai is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Xenomai is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Xenomai; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <error.h>
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#include <errno.h>
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#include <stdlib.h>
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#define PROC_ACCT "/proc/xenomai/sched/acct"
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#define PROC_PID "/proc/%d/cmdline"
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#define ACCT_FMT_1 "%u %d %lu %lu %lu %lu %lx %Lu %Lu %Lu"
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#define ACCT_FMT_2 ACCT_FMT_1 " %[^\n]"
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#define ACCT_NFMT_1 10
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#define ACCT_NFMT_2 11
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int main(int argc, char *argv[])
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{
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char cmdpath[sizeof(PROC_PID) + 32], cmdbuf[BUFSIZ], acctbuf[BUFSIZ], name[64];
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unsigned long ssw, csw, xsc, pf, state, sec;
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unsigned long long account_period,
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exectime_period, exectime_total, v;
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unsigned int cpu, hr, min, msec, usec;
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FILE *acctfp, *cmdfp;
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int pid;
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acctfp = fopen(PROC_ACCT, "r");
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if (acctfp == NULL)
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error(1, errno, "cannot open %s\n", PROC_ACCT);
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printf("%-6s %-17s %-24s %s\n\n",
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"PID", "TIME", "THREAD", "CMD");
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while (fgets(acctbuf, sizeof(acctbuf), acctfp) != NULL) {
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if (sscanf(acctbuf, ACCT_FMT_2,
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&cpu, &pid, &ssw, &csw, &xsc, &pf, &state,
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&account_period, &exectime_period,
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&exectime_total, name) != ACCT_NFMT_2) {
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strcpy(name, "");
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if (sscanf(acctbuf, ACCT_FMT_1,
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&cpu, &pid, &ssw, &csw, &xsc, &pf, &state,
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&account_period, &exectime_period,
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&exectime_total) != ACCT_NFMT_1) {
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break;
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}
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}
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snprintf(cmdpath, sizeof(cmdpath), PROC_PID, pid);
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cmdfp = fopen(cmdpath, "r");
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if (cmdfp == NULL ||
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fgets(cmdbuf, sizeof(cmdbuf), cmdfp) == NULL)
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strcpy(cmdbuf, "-");
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if (cmdfp)
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fclose(cmdfp);
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v = exectime_total;
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sec = v / 1000000000LL;
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v %= 1000000000LL;
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msec = v / 1000000LL;
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v %= 1000000LL;
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usec = v / 1000LL;
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hr = sec / (60 * 60);
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sec %= (60 * 60);
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min = sec / 60;
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sec %= 60;
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printf("%-6d %.3u:%.2u:%.2lu.%.3u,%.3u %-24s %s\n",
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pid,
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hr, min, sec, msec, usec,
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name, cmdbuf);
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}
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exit(0);
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}
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