- use bb_msg_write_error in 3 places
- whitespace
This commit is contained in:
Bernhard Reutner-Fischer
parent
c89982dcd7
commit
b1312c9125
686
miscutils/time.c
686
miscutils/time.c
@ -1,25 +1,13 @@
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/* vi: set sw=4 ts=4: */
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/* `time' utility to display resource usage of processes.
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Copyright (C) 1990, 91, 92, 93, 96 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program 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. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; 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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Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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/* Originally written by David Keppel <pardo@cs.washington.edu>.
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Heavily modified by David MacKenzie <djm@gnu.ai.mit.edu>.
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Heavily modified for busybox by Erik Andersen <andersen@codepoet.org>
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*/
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*/
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#include "busybox.h"
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#include <stdlib.h>
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@ -30,19 +18,18 @@
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#include <string.h>
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#include <limits.h>
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#include <unistd.h>
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#include <sys/types.h> /* For pid_t. */
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#include <sys/types.h> /* For pid_t. */
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#include <sys/wait.h>
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#include <sys/param.h> /* For getpagesize, maybe. */
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#include <sys/param.h> /* For getpagesize, maybe. */
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#define TV_MSEC tv_usec / 1000
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#include <sys/resource.h>
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/* Information on the resources used by a child process. */
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typedef struct
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{
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int waitstatus;
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struct rusage ru;
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struct timeval start, elapsed; /* Wallclock time of process. */
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typedef struct {
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int waitstatus;
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struct rusage ru;
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struct timeval start, elapsed; /* Wallclock time of process. */
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} resource_t;
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/* msec = milliseconds = 1/1,000 (1*10e-3) second.
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@ -69,78 +56,74 @@ static const char *const posix_format = "real %e\nuser %U\nsys %S";
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/* Format string for printing all statistics verbosely.
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Keep this output to 24 lines so users on terminals can see it all.*/
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static const char *const long_format =
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"\tCommand being timed: \"%C\"\n"
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"\tUser time (seconds): %U\n"
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"\tSystem time (seconds): %S\n"
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"\tPercent of CPU this job got: %P\n"
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"\tElapsed (wall clock) time (h:mm:ss or m:ss): %E\n"
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"\tAverage shared text size (kbytes): %X\n"
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"\tAverage unshared data size (kbytes): %D\n"
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"\tAverage stack size (kbytes): %p\n"
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"\tAverage total size (kbytes): %K\n"
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"\tMaximum resident set size (kbytes): %M\n"
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"\tAverage resident set size (kbytes): %t\n"
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"\tMajor (requiring I/O) page faults: %F\n"
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"\tMinor (reclaiming a frame) page faults: %R\n"
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"\tVoluntary context switches: %w\n"
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"\tInvoluntary context switches: %c\n"
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"\tSwaps: %W\n"
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"\tFile system inputs: %I\n"
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"\tFile system outputs: %O\n"
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"\tSocket messages sent: %s\n"
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"\tSocket messages received: %r\n"
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"\tSignals delivered: %k\n"
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"\tPage size (bytes): %Z\n"
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"\tExit status: %x";
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"\tCommand being timed: \"%C\"\n"
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"\tUser time (seconds): %U\n"
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"\tSystem time (seconds): %S\n"
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"\tPercent of CPU this job got: %P\n"
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"\tElapsed (wall clock) time (h:mm:ss or m:ss): %E\n"
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"\tAverage shared text size (kbytes): %X\n"
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"\tAverage unshared data size (kbytes): %D\n"
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"\tAverage stack size (kbytes): %p\n"
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"\tAverage total size (kbytes): %K\n"
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"\tMaximum resident set size (kbytes): %M\n"
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"\tAverage resident set size (kbytes): %t\n"
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"\tMajor (requiring I/O) page faults: %F\n"
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"\tMinor (reclaiming a frame) page faults: %R\n"
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"\tVoluntary context switches: %w\n"
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"\tInvoluntary context switches: %c\n"
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"\tSwaps: %W\n"
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"\tFile system inputs: %I\n"
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"\tFile system outputs: %O\n"
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"\tSocket messages sent: %s\n"
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"\tSocket messages received: %r\n"
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"\tSignals delivered: %k\n"
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"\tPage size (bytes): %Z\n" "\tExit status: %x";
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/* Wait for and fill in data on child process PID.
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Return 0 on error, 1 if ok. */
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Return 0 on error, 1 if ok. */
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/* pid_t is short on BSDI, so don't try to promote it. */
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static int resuse_end (pid_t pid, resource_t *resp)
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static int resuse_end(pid_t pid, resource_t * resp)
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{
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int status;
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int status;
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pid_t caught;
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pid_t caught;
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/* Ignore signals, but don't ignore the children. When wait3
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returns the child process, set the time the command finished. */
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while ((caught = wait3 (&status, 0, &resp->ru)) != pid)
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{
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if (caught == -1)
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return 0;
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}
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/* Ignore signals, but don't ignore the children. When wait3
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returns the child process, set the time the command finished. */
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while ((caught = wait3(&status, 0, &resp->ru)) != pid) {
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if (caught == -1)
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return 0;
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}
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gettimeofday (&resp->elapsed, (struct timezone *) 0);
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resp->elapsed.tv_sec -= resp->start.tv_sec;
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if (resp->elapsed.tv_usec < resp->start.tv_usec)
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{
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/* Manually carry a one from the seconds field. */
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resp->elapsed.tv_usec += 1000000;
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--resp->elapsed.tv_sec;
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}
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resp->elapsed.tv_usec -= resp->start.tv_usec;
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gettimeofday(&resp->elapsed, (struct timezone *) 0);
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resp->elapsed.tv_sec -= resp->start.tv_sec;
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if (resp->elapsed.tv_usec < resp->start.tv_usec) {
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/* Manually carry a one from the seconds field. */
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resp->elapsed.tv_usec += 1000000;
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--resp->elapsed.tv_sec;
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}
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resp->elapsed.tv_usec -= resp->start.tv_usec;
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resp->waitstatus = status;
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resp->waitstatus = status;
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return 1;
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return 1;
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}
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/* Print ARGV to FP, with each entry in ARGV separated by FILLER. */
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static void fprintargv (FILE *fp, char *const *argv, const char *filler)
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static void fprintargv(FILE * fp, char *const *argv, const char *filler)
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{
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char *const *av;
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char *const *av;
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av = argv;
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fputs (*av, fp);
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while (*++av)
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{
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fputs (filler, fp);
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fputs (*av, fp);
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}
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if (ferror (fp))
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bb_error_msg_and_die("write error");
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av = argv;
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fputs(*av, fp);
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while (*++av) {
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fputs(filler, fp);
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fputs(*av, fp);
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}
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if (ferror(fp))
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bb_error_msg_and_die(bb_msg_write_error);
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}
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/* Return the number of kilobytes corresponding to a number of pages PAGES.
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@ -151,28 +134,25 @@ static void fprintargv (FILE *fp, char *const *argv, const char *filler)
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Note: Some machines express getrusage statistics in terms of K,
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others in terms of pages. */
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static unsigned long ptok (unsigned long pages)
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static unsigned long ptok(unsigned long pages)
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{
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static unsigned long ps = 0;
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unsigned long tmp;
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static long size = LONG_MAX;
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static unsigned long ps = 0;
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unsigned long tmp;
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static long size = LONG_MAX;
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/* Initialization. */
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if (ps == 0)
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ps = (long) getpagesize ();
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/* Initialization. */
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if (ps == 0)
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ps = (long) getpagesize();
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/* Conversion. */
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if (pages > (LONG_MAX / ps))
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{ /* Could overflow. */
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tmp = pages / 1024; /* Smaller first, */
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size = tmp * ps; /* then larger. */
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}
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else
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{ /* Could underflow. */
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tmp = pages * ps; /* Larger first, */
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size = tmp / 1024; /* then smaller. */
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}
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return size;
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/* Conversion. */
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if (pages > (LONG_MAX / ps)) { /* Could overflow. */
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tmp = pages / 1024; /* Smaller first, */
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size = tmp * ps; /* then larger. */
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} else { /* Could underflow. */
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tmp = pages * ps; /* Larger first, */
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size = tmp / 1024; /* then smaller. */
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}
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return size;
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}
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/* summarize: Report on the system use of a command.
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@ -220,282 +200,280 @@ static unsigned long ptok (unsigned long pages)
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COMMAND is the command and args that are being summarized.
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RESP is resource information on the command. */
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static void summarize (FILE *fp, const char *fmt, char **command, resource_t *resp)
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static void summarize(FILE * fp, const char *fmt, char **command,
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resource_t * resp)
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{
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unsigned long r; /* Elapsed real milliseconds. */
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unsigned long v; /* Elapsed virtual (CPU) milliseconds. */
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unsigned long r; /* Elapsed real milliseconds. */
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unsigned long v; /* Elapsed virtual (CPU) milliseconds. */
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if (WIFSTOPPED (resp->waitstatus))
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fprintf (fp, "Command stopped by signal %d\n", WSTOPSIG (resp->waitstatus));
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else if (WIFSIGNALED (resp->waitstatus))
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fprintf (fp, "Command terminated by signal %d\n", WTERMSIG (resp->waitstatus));
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else if (WIFEXITED (resp->waitstatus) && WEXITSTATUS (resp->waitstatus))
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fprintf (fp, "Command exited with non-zero status %d\n", WEXITSTATUS (resp->waitstatus));
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if (WIFSTOPPED(resp->waitstatus))
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fprintf(fp, "Command stopped by signal %d\n",
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WSTOPSIG(resp->waitstatus));
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else if (WIFSIGNALED(resp->waitstatus))
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fprintf(fp, "Command terminated by signal %d\n",
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WTERMSIG(resp->waitstatus));
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else if (WIFEXITED(resp->waitstatus) && WEXITSTATUS(resp->waitstatus))
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fprintf(fp, "Command exited with non-zero status %d\n",
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WEXITSTATUS(resp->waitstatus));
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/* Convert all times to milliseconds. Occasionally, one of these values
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comes out as zero. Dividing by zero causes problems, so we first
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check the time value. If it is zero, then we take `evasive action'
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instead of calculating a value. */
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/* Convert all times to milliseconds. Occasionally, one of these values
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comes out as zero. Dividing by zero causes problems, so we first
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check the time value. If it is zero, then we take `evasive action'
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instead of calculating a value. */
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r = resp->elapsed.tv_sec * 1000 + resp->elapsed.tv_usec / 1000;
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r = resp->elapsed.tv_sec * 1000 + resp->elapsed.tv_usec / 1000;
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v = resp->ru.ru_utime.tv_sec * 1000 + resp->ru.ru_utime.TV_MSEC +
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resp->ru.ru_stime.tv_sec * 1000 + resp->ru.ru_stime.TV_MSEC;
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v = resp->ru.ru_utime.tv_sec * 1000 + resp->ru.ru_utime.TV_MSEC +
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resp->ru.ru_stime.tv_sec * 1000 + resp->ru.ru_stime.TV_MSEC;
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while (*fmt)
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{
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switch (*fmt)
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{
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case '%':
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switch (*++fmt)
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{
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case '%': /* Literal '%'. */
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putc ('%', fp);
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while (*fmt) {
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switch (*fmt) {
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case '%':
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switch (*++fmt) {
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case '%': /* Literal '%'. */
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putc('%', fp);
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break;
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case 'C': /* The command that got timed. */
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fprintargv(fp, command, " ");
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break;
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case 'D': /* Average unshared data size. */
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fprintf(fp, "%lu",
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MSEC_TO_TICKS(v) == 0 ? 0 :
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ptok((UL) resp->ru.ru_idrss) / MSEC_TO_TICKS(v) +
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ptok((UL) resp->ru.ru_isrss) / MSEC_TO_TICKS(v));
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break;
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case 'E': /* Elapsed real (wall clock) time. */
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if (resp->elapsed.tv_sec >= 3600) /* One hour -> h:m:s. */
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fprintf(fp, "%ldh %ldm %02lds",
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resp->elapsed.tv_sec / 3600,
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(resp->elapsed.tv_sec % 3600) / 60,
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resp->elapsed.tv_sec % 60);
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else
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fprintf(fp, "%ldm %ld.%02lds", /* -> m:s. */
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resp->elapsed.tv_sec / 60,
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resp->elapsed.tv_sec % 60,
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resp->elapsed.tv_usec / 10000);
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break;
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case 'F': /* Major page faults. */
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fprintf(fp, "%ld", resp->ru.ru_majflt);
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break;
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case 'I': /* Inputs. */
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fprintf(fp, "%ld", resp->ru.ru_inblock);
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break;
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case 'K': /* Average mem usage == data+stack+text. */
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fprintf(fp, "%lu",
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MSEC_TO_TICKS(v) == 0 ? 0 :
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ptok((UL) resp->ru.ru_idrss) / MSEC_TO_TICKS(v) +
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ptok((UL) resp->ru.ru_isrss) / MSEC_TO_TICKS(v) +
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ptok((UL) resp->ru.ru_ixrss) / MSEC_TO_TICKS(v));
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break;
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case 'M': /* Maximum resident set size. */
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fprintf(fp, "%lu", ptok((UL) resp->ru.ru_maxrss));
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break;
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case 'O': /* Outputs. */
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fprintf(fp, "%ld", resp->ru.ru_oublock);
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break;
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case 'P': /* Percent of CPU this job got. */
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/* % cpu is (total cpu time)/(elapsed time). */
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if (r > 0)
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fprintf(fp, "%lu%%", (v * 100 / r));
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else
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fprintf(fp, "?%%");
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break;
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case 'R': /* Minor page faults (reclaims). */
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fprintf(fp, "%ld", resp->ru.ru_minflt);
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break;
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case 'S': /* System time. */
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fprintf(fp, "%ld.%02ld",
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resp->ru.ru_stime.tv_sec,
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resp->ru.ru_stime.TV_MSEC / 10);
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break;
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case 'T': /* System time. */
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if (resp->ru.ru_stime.tv_sec >= 3600) /* One hour -> h:m:s. */
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fprintf(fp, "%ldh %ldm %02lds",
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resp->ru.ru_stime.tv_sec / 3600,
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(resp->ru.ru_stime.tv_sec % 3600) / 60,
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resp->ru.ru_stime.tv_sec % 60);
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else
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fprintf(fp, "%ldm %ld.%02lds", /* -> m:s. */
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resp->ru.ru_stime.tv_sec / 60,
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resp->ru.ru_stime.tv_sec % 60,
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resp->ru.ru_stime.tv_usec / 10000);
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break;
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case 'U': /* User time. */
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fprintf(fp, "%ld.%02ld",
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resp->ru.ru_utime.tv_sec,
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resp->ru.ru_utime.TV_MSEC / 10);
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break;
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case 'u': /* User time. */
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if (resp->ru.ru_utime.tv_sec >= 3600) /* One hour -> h:m:s. */
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fprintf(fp, "%ldh %ldm %02lds",
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resp->ru.ru_utime.tv_sec / 3600,
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(resp->ru.ru_utime.tv_sec % 3600) / 60,
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resp->ru.ru_utime.tv_sec % 60);
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else
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fprintf(fp, "%ldm %ld.%02lds", /* -> m:s. */
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resp->ru.ru_utime.tv_sec / 60,
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resp->ru.ru_utime.tv_sec % 60,
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resp->ru.ru_utime.tv_usec / 10000);
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break;
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case 'W': /* Times swapped out. */
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fprintf(fp, "%ld", resp->ru.ru_nswap);
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break;
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case 'X': /* Average shared text size. */
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fprintf(fp, "%lu",
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MSEC_TO_TICKS(v) == 0 ? 0 :
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ptok((UL) resp->ru.ru_ixrss) / MSEC_TO_TICKS(v));
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break;
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case 'Z': /* Page size. */
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fprintf(fp, "%d", getpagesize());
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break;
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case 'c': /* Involuntary context switches. */
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fprintf(fp, "%ld", resp->ru.ru_nivcsw);
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break;
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case 'e': /* Elapsed real time in seconds. */
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fprintf(fp, "%ld.%02ld",
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resp->elapsed.tv_sec, resp->elapsed.tv_usec / 10000);
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break;
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case 'k': /* Signals delivered. */
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fprintf(fp, "%ld", resp->ru.ru_nsignals);
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break;
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case 'p': /* Average stack segment. */
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fprintf(fp, "%lu",
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MSEC_TO_TICKS(v) == 0 ? 0 :
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ptok((UL) resp->ru.ru_isrss) / MSEC_TO_TICKS(v));
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break;
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case 'r': /* Incoming socket messages received. */
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fprintf(fp, "%ld", resp->ru.ru_msgrcv);
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break;
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case 's': /* Outgoing socket messages sent. */
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fprintf(fp, "%ld", resp->ru.ru_msgsnd);
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break;
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case 't': /* Average resident set size. */
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fprintf(fp, "%lu",
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MSEC_TO_TICKS(v) == 0 ? 0 :
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ptok((UL) resp->ru.ru_idrss) / MSEC_TO_TICKS(v));
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break;
|
||||
case 'w': /* Voluntary context switches. */
|
||||
fprintf(fp, "%ld", resp->ru.ru_nvcsw);
|
||||
break;
|
||||
case 'x': /* Exit status. */
|
||||
fprintf(fp, "%d", WEXITSTATUS(resp->waitstatus));
|
||||
break;
|
||||
case '\0':
|
||||
putc('?', fp);
|
||||
return;
|
||||
default:
|
||||
putc('?', fp);
|
||||
putc(*fmt, fp);
|
||||
}
|
||||
++fmt;
|
||||
break;
|
||||
case 'C': /* The command that got timed. */
|
||||
fprintargv (fp, command, " ");
|
||||
|
||||
case '\\': /* Format escape. */
|
||||
switch (*++fmt) {
|
||||
case 't':
|
||||
putc('\t', fp);
|
||||
break;
|
||||
case 'n':
|
||||
putc('\n', fp);
|
||||
break;
|
||||
case '\\':
|
||||
putc('\\', fp);
|
||||
break;
|
||||
default:
|
||||
putc('?', fp);
|
||||
putc('\\', fp);
|
||||
putc(*fmt, fp);
|
||||
}
|
||||
++fmt;
|
||||
break;
|
||||
case 'D': /* Average unshared data size. */
|
||||
fprintf (fp, "%lu",
|
||||
MSEC_TO_TICKS (v) == 0 ? 0 :
|
||||
ptok ((UL) resp->ru.ru_idrss) / MSEC_TO_TICKS (v) +
|
||||
ptok ((UL) resp->ru.ru_isrss) / MSEC_TO_TICKS (v));
|
||||
break;
|
||||
case 'E': /* Elapsed real (wall clock) time. */
|
||||
if (resp->elapsed.tv_sec >= 3600) /* One hour -> h:m:s. */
|
||||
fprintf (fp, "%ldh %ldm %02lds",
|
||||
resp->elapsed.tv_sec / 3600,
|
||||
(resp->elapsed.tv_sec % 3600) / 60,
|
||||
resp->elapsed.tv_sec % 60);
|
||||
else
|
||||
fprintf (fp, "%ldm %ld.%02lds", /* -> m:s. */
|
||||
resp->elapsed.tv_sec / 60,
|
||||
resp->elapsed.tv_sec % 60,
|
||||
resp->elapsed.tv_usec / 10000);
|
||||
break;
|
||||
case 'F': /* Major page faults. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_majflt);
|
||||
break;
|
||||
case 'I': /* Inputs. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_inblock);
|
||||
break;
|
||||
case 'K': /* Average mem usage == data+stack+text. */
|
||||
fprintf (fp, "%lu",
|
||||
MSEC_TO_TICKS (v) == 0 ? 0 :
|
||||
ptok ((UL) resp->ru.ru_idrss) / MSEC_TO_TICKS (v) +
|
||||
ptok ((UL) resp->ru.ru_isrss) / MSEC_TO_TICKS (v) +
|
||||
ptok ((UL) resp->ru.ru_ixrss) / MSEC_TO_TICKS (v));
|
||||
break;
|
||||
case 'M': /* Maximum resident set size. */
|
||||
fprintf (fp, "%lu", ptok ((UL) resp->ru.ru_maxrss));
|
||||
break;
|
||||
case 'O': /* Outputs. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_oublock);
|
||||
break;
|
||||
case 'P': /* Percent of CPU this job got. */
|
||||
/* % cpu is (total cpu time)/(elapsed time). */
|
||||
if (r > 0)
|
||||
fprintf (fp, "%lu%%", (v * 100 / r));
|
||||
else
|
||||
fprintf (fp, "?%%");
|
||||
break;
|
||||
case 'R': /* Minor page faults (reclaims). */
|
||||
fprintf (fp, "%ld", resp->ru.ru_minflt);
|
||||
break;
|
||||
case 'S': /* System time. */
|
||||
fprintf (fp, "%ld.%02ld",
|
||||
resp->ru.ru_stime.tv_sec,
|
||||
resp->ru.ru_stime.TV_MSEC / 10);
|
||||
break;
|
||||
case 'T': /* System time. */
|
||||
if (resp->ru.ru_stime.tv_sec >= 3600) /* One hour -> h:m:s. */
|
||||
fprintf (fp, "%ldh %ldm %02lds",
|
||||
resp->ru.ru_stime.tv_sec / 3600,
|
||||
(resp->ru.ru_stime.tv_sec % 3600) / 60,
|
||||
resp->ru.ru_stime.tv_sec % 60);
|
||||
else
|
||||
fprintf (fp, "%ldm %ld.%02lds", /* -> m:s. */
|
||||
resp->ru.ru_stime.tv_sec / 60,
|
||||
resp->ru.ru_stime.tv_sec % 60,
|
||||
resp->ru.ru_stime.tv_usec / 10000);
|
||||
break;
|
||||
case 'U': /* User time. */
|
||||
fprintf (fp, "%ld.%02ld",
|
||||
resp->ru.ru_utime.tv_sec,
|
||||
resp->ru.ru_utime.TV_MSEC / 10);
|
||||
break;
|
||||
case 'u': /* User time. */
|
||||
if (resp->ru.ru_utime.tv_sec >= 3600) /* One hour -> h:m:s. */
|
||||
fprintf (fp, "%ldh %ldm %02lds",
|
||||
resp->ru.ru_utime.tv_sec / 3600,
|
||||
(resp->ru.ru_utime.tv_sec % 3600) / 60,
|
||||
resp->ru.ru_utime.tv_sec % 60);
|
||||
else
|
||||
fprintf (fp, "%ldm %ld.%02lds", /* -> m:s. */
|
||||
resp->ru.ru_utime.tv_sec / 60,
|
||||
resp->ru.ru_utime.tv_sec % 60,
|
||||
resp->ru.ru_utime.tv_usec / 10000);
|
||||
break;
|
||||
case 'W': /* Times swapped out. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_nswap);
|
||||
break;
|
||||
case 'X': /* Average shared text size. */
|
||||
fprintf (fp, "%lu",
|
||||
MSEC_TO_TICKS (v) == 0 ? 0 :
|
||||
ptok ((UL) resp->ru.ru_ixrss) / MSEC_TO_TICKS (v));
|
||||
break;
|
||||
case 'Z': /* Page size. */
|
||||
fprintf (fp, "%d", getpagesize ());
|
||||
break;
|
||||
case 'c': /* Involuntary context switches. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_nivcsw);
|
||||
break;
|
||||
case 'e': /* Elapsed real time in seconds. */
|
||||
fprintf (fp, "%ld.%02ld",
|
||||
resp->elapsed.tv_sec,
|
||||
resp->elapsed.tv_usec / 10000);
|
||||
break;
|
||||
case 'k': /* Signals delivered. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_nsignals);
|
||||
break;
|
||||
case 'p': /* Average stack segment. */
|
||||
fprintf (fp, "%lu",
|
||||
MSEC_TO_TICKS (v) == 0 ? 0 :
|
||||
ptok ((UL) resp->ru.ru_isrss) / MSEC_TO_TICKS (v));
|
||||
break;
|
||||
case 'r': /* Incoming socket messages received. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_msgrcv);
|
||||
break;
|
||||
case 's': /* Outgoing socket messages sent. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_msgsnd);
|
||||
break;
|
||||
case 't': /* Average resident set size. */
|
||||
fprintf (fp, "%lu",
|
||||
MSEC_TO_TICKS (v) == 0 ? 0 :
|
||||
ptok ((UL) resp->ru.ru_idrss) / MSEC_TO_TICKS (v));
|
||||
break;
|
||||
case 'w': /* Voluntary context switches. */
|
||||
fprintf (fp, "%ld", resp->ru.ru_nvcsw);
|
||||
break;
|
||||
case 'x': /* Exit status. */
|
||||
fprintf (fp, "%d", WEXITSTATUS (resp->waitstatus));
|
||||
break;
|
||||
case '\0':
|
||||
putc ('?', fp);
|
||||
return;
|
||||
default:
|
||||
putc ('?', fp);
|
||||
putc (*fmt, fp);
|
||||
|
||||
default:
|
||||
putc(*fmt++, fp);
|
||||
}
|
||||
++fmt;
|
||||
break;
|
||||
|
||||
case '\\': /* Format escape. */
|
||||
switch (*++fmt)
|
||||
{
|
||||
case 't':
|
||||
putc ('\t', fp);
|
||||
break;
|
||||
case 'n':
|
||||
putc ('\n', fp);
|
||||
break;
|
||||
case '\\':
|
||||
putc ('\\', fp);
|
||||
break;
|
||||
default:
|
||||
putc ('?', fp);
|
||||
putc ('\\', fp);
|
||||
putc (*fmt, fp);
|
||||
}
|
||||
++fmt;
|
||||
break;
|
||||
|
||||
default:
|
||||
putc (*fmt++, fp);
|
||||
if (ferror(fp))
|
||||
bb_error_msg_and_die(bb_msg_write_error);
|
||||
}
|
||||
putc('\n', fp);
|
||||
|
||||
if (ferror (fp))
|
||||
bb_error_msg_and_die("write error");
|
||||
}
|
||||
putc ('\n', fp);
|
||||
|
||||
if (ferror (fp))
|
||||
bb_error_msg_and_die("write error");
|
||||
if (ferror(fp))
|
||||
bb_error_msg_and_die(bb_msg_write_error);
|
||||
}
|
||||
|
||||
/* Run command CMD and return statistics on it.
|
||||
Put the statistics in *RESP. */
|
||||
static void run_command (char *const *cmd, resource_t *resp)
|
||||
static void run_command(char *const *cmd, resource_t * resp)
|
||||
{
|
||||
pid_t pid; /* Pid of child. */
|
||||
__sighandler_t interrupt_signal, quit_signal;
|
||||
pid_t pid; /* Pid of child. */
|
||||
__sighandler_t interrupt_signal, quit_signal;
|
||||
|
||||
gettimeofday (&resp->start, (struct timezone *) 0);
|
||||
pid = fork (); /* Run CMD as child process. */
|
||||
if (pid < 0)
|
||||
bb_error_msg_and_die("cannot fork");
|
||||
else if (pid == 0)
|
||||
{ /* If child. */
|
||||
/* Don't cast execvp arguments; that causes errors on some systems,
|
||||
versus merely warnings if the cast is left off. */
|
||||
execvp (cmd[0], cmd);
|
||||
bb_error_msg("cannot run %s", cmd[0]);
|
||||
_exit (errno == ENOENT ? 127 : 126);
|
||||
}
|
||||
|
||||
/* Have signals kill the child but not self (if possible). */
|
||||
interrupt_signal = signal (SIGINT, SIG_IGN);
|
||||
quit_signal = signal (SIGQUIT, SIG_IGN);
|
||||
|
||||
if (resuse_end (pid, resp) == 0)
|
||||
bb_error_msg("error waiting for child process");
|
||||
|
||||
/* Re-enable signals. */
|
||||
signal (SIGINT, interrupt_signal);
|
||||
signal (SIGQUIT, quit_signal);
|
||||
}
|
||||
|
||||
int time_main (int argc, char **argv)
|
||||
{
|
||||
int gotone;
|
||||
resource_t res;
|
||||
const char *output_format = default_format;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
/* Parse any options -- don't use getopt() here so we don't
|
||||
* consume the args of our client application... */
|
||||
while (argc > 0 && **argv == '-') {
|
||||
gotone = 0;
|
||||
while (gotone==0 && *++(*argv)) {
|
||||
switch (**argv) {
|
||||
case 'v':
|
||||
output_format = long_format;
|
||||
break;
|
||||
case 'p':
|
||||
output_format = posix_format;
|
||||
break;
|
||||
default:
|
||||
bb_show_usage();
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
gotone = 1;
|
||||
gettimeofday(&resp->start, (struct timezone *) 0);
|
||||
pid = fork(); /* Run CMD as child process. */
|
||||
if (pid < 0)
|
||||
bb_error_msg_and_die("cannot fork");
|
||||
else if (pid == 0) { /* If child. */
|
||||
/* Don't cast execvp arguments; that causes errors on some systems,
|
||||
versus merely warnings if the cast is left off. */
|
||||
execvp(cmd[0], cmd);
|
||||
bb_error_msg("cannot run %s", cmd[0]);
|
||||
_exit(errno == ENOENT ? 127 : 126);
|
||||
}
|
||||
}
|
||||
|
||||
if (argv == NULL || *argv == NULL)
|
||||
bb_show_usage();
|
||||
/* Have signals kill the child but not self (if possible). */
|
||||
interrupt_signal = signal(SIGINT, SIG_IGN);
|
||||
quit_signal = signal(SIGQUIT, SIG_IGN);
|
||||
|
||||
run_command (argv, &res);
|
||||
summarize (stderr, output_format, argv, &res);
|
||||
fflush (stderr);
|
||||
if (resuse_end(pid, resp) == 0)
|
||||
bb_error_msg("error waiting for child process");
|
||||
|
||||
if (WIFSTOPPED (res.waitstatus))
|
||||
exit (WSTOPSIG (res.waitstatus));
|
||||
else if (WIFSIGNALED (res.waitstatus))
|
||||
exit (WTERMSIG (res.waitstatus));
|
||||
else if (WIFEXITED (res.waitstatus))
|
||||
exit (WEXITSTATUS (res.waitstatus));
|
||||
return 0;
|
||||
/* Re-enable signals. */
|
||||
signal(SIGINT, interrupt_signal);
|
||||
signal(SIGQUIT, quit_signal);
|
||||
}
|
||||
|
||||
int time_main(int argc, char **argv)
|
||||
{
|
||||
int gotone;
|
||||
resource_t res;
|
||||
const char *output_format = default_format;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
/* Parse any options -- don't use getopt() here so we don't
|
||||
* consume the args of our client application... */
|
||||
while (argc > 0 && **argv == '-') {
|
||||
gotone = 0;
|
||||
while (gotone == 0 && *++(*argv)) {
|
||||
switch (**argv) {
|
||||
case 'v':
|
||||
output_format = long_format;
|
||||
break;
|
||||
case 'p':
|
||||
output_format = posix_format;
|
||||
break;
|
||||
default:
|
||||
bb_show_usage();
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
gotone = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (argv == NULL || *argv == NULL)
|
||||
bb_show_usage();
|
||||
|
||||
run_command(argv, &res);
|
||||
summarize(stderr, output_format, argv, &res);
|
||||
fflush(stderr);
|
||||
|
||||
if (WIFSTOPPED(res.waitstatus))
|
||||
exit(WSTOPSIG(res.waitstatus));
|
||||
else if (WIFSIGNALED(res.waitstatus))
|
||||
exit(WTERMSIG(res.waitstatus));
|
||||
else if (WIFEXITED(res.waitstatus))
|
||||
exit(WEXITSTATUS(res.waitstatus));
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user