mem-trace.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (C) 1998 by the University of Southern California
- * $Id: mem-trace.h,v 1.16 2005/08/25 18:58:12 johnh Exp $
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- *
- *
- * The copyright of this module includes the following
- * linking-with-specific-other-licenses addition:
- *
- * In addition, as a special exception, the copyright holders of
- * this module give you permission to combine (via static or
- * dynamic linking) this module with free software programs or
- * libraries that are released under the GNU LGPL and with code
- * included in the standard release of ns-2 under the Apache 2.0
- * license or under otherwise-compatible licenses with advertising
- * requirements (or modified versions of such code, with unchanged
- * license). You may copy and distribute such a system following the
- * terms of the GNU GPL for this module and the licenses of the
- * other code concerned, provided that you include the source code of
- * that other code when and as the GNU GPL requires distribution of
- * source code.
- *
- * Note that people who make modified versions of this module
- * are not obligated to grant this special exception for their
- * modified versions; it is their choice whether to do so. The GNU
- * General Public License gives permission to release a modified
- * version without this exception; this exception also makes it
- * possible to release a modified version which carries forward this
- * exception.
- *
- */
- #include "config.h"
- #include <stdio.h>
- /* Unix platforms should get these from configure */
- #ifdef WIN32
- #undef HAVE_GETRUSAGE
- #undef HAVE_SBRK
- #endif
- #ifdef HAVE_GETRUSAGE
- #include <sys/time.h>
- #include <sys/resource.h>
- #include <unistd.h>
- #endif
- #ifdef HAVE_SBRK
- #include <unistd.h>
- #endif /* HAVE_SBRK */
- /* hpux patch from Ketil Danielsen <Ketil.Danielsen@hiMolde.no> */
- #ifdef hpux
- #include <sys/resource.h>
- #include <sys/syscall.h>
- #define getrusage(a, b) syscall(SYS_GETRUSAGE, a, b)
- #endif
- #define fDIFF(FIELD) (now_.FIELD - start_.FIELD)
- #define absolute(var) (var > 0 ? var : -var)
- #define normalize(var) var.tv_sec * 1000 + (int) (var.tv_usec / 1000)
- class MemInfo {
- public:
- MemInfo() {}
- long stack_;
- long heap_;
- struct timeval utime_, stime_;
- void checkpoint() {
- int i;
- stack_ = (long)&i;
- #ifdef HAVE_GETRUSAGE
- struct rusage ru;
- getrusage(RUSAGE_SELF, &ru);
- utime_ = ru.ru_utime;
- stime_ = ru.ru_stime;
- #else /* ! HAVE_GETRUSAGE */
- utime_.tv_sec = utime_.tv_usec = 0;
- stime_.tv_sec = stime_.tv_usec = 0;
- #endif /* HAVE_GETRUSAGE */
- #ifdef HAVE_SBRK
- heap_ = (long)sbrk(0);
- #else /* ! HAVE_SBRK */
- heap_ = 0;
- #endif /* HAVE_SBRK */
- }
- };
- class MemTrace {
- private:
- MemInfo start_, now_;
- public:
- MemTrace() {
- start_.checkpoint();
- }
- void diff(char* prompt) {
- now_.checkpoint();
- fprintf (stdout, "%s: utime/stime: %ld %ld tstack/heap: %ld %ldn",
- prompt,
- normalize(now_.utime_) - normalize(start_.utime_),
- normalize(now_.stime_) - normalize(start_.stime_),
- fDIFF(stack_), fDIFF(heap_));
- start_.checkpoint();
- }
- };