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#include <cassert>
#include <cstdio>
#include <cstring>
#include <list>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "util_String.h"
#if HAVE_UNISTD_H
# include <fcntl.h>
# include <unistd.h>
#endif
#include <defs.hh>
#include "Timers.hh"
namespace Carpet {
using namespace std;
// A global timer set
static
TimerSet timerSet;
// Add a timer
void
TimerSet::add (Timer * const timer)
{
timers.push_back (timer);
}
// Remove a timer
void
TimerSet::remove (Timer * const timer)
{
timers.remove (timer);
}
// Print all timer names
void
TimerSet::printNames ()
const
{
printf ("Timer names:\n");
int n = 0;
for (list <Timer *>::const_iterator
itimer = timers.begin(); itimer != timers.end(); ++ itimer)
{
printf (" [%4d] %s\n", n, (* itimer)->name());
++ n;
}
}
// Print all timer data
void
TimerSet::printData ()
{
for (list <Timer *>::const_iterator
itimer = timers.begin(); itimer != timers.end(); ++ itimer)
{
(* itimer)->printData ();
}
printf ("\n");
}
// Print all timer data
void
TimerSet::writeData (cGH const * const cctkGH,
char const * const filename)
{
int const oldfd = redirect (cctkGH, filename);
#if 0
printf ("********************************************************************************\n");
#endif
printf ("# Carpet timing information at iteration %d time %g:\n",
cctkGH->cctk_iteration, (double) cctkGH->cctk_time);
timerSet.printData ();
unredirect (oldfd);
}
// If filename is not empty, then redirect stdout to a file
int
TimerSet::redirect (cGH const * const cctkGH,
char const * const filename)
{
DECLARE_CCTK_PARAMETERS;
if (CCTK_EQUALS (filename, "")) {
return -1;
}
#ifndef HAVE_UNISTD_H
CCTK_WARN (1, "Cannot redirect timer output to a file; the operating system does not support this");
return -1;
#else
int const myproc = CCTK_MyProc (cctkGH);
char fullname [10000];
Util_snprintf (fullname, sizeof fullname,
"%s/%s.%04d.txt", out_dir, filename, myproc);
int flags = O_WRONLY | O_CREAT | O_APPEND; // append
static bool first_time = true;
if (first_time) {
first_time = false;
if (IO_TruncateOutputFiles (cctkGH)) {
flags = O_WRONLY | O_CREAT | O_TRUNC; // truncate
}
}
// Temporarily redirect stdout
fflush (stdout);
int const oldfd = dup (1); // fd 1 is stdout
int const mode = 0644; // rw-r--r--, or a+r u+w
int const fdfile = open (fullname, flags, mode);
if (fdfile < 0) {
CCTK_VWarn (1, __LINE__, __FILE__, CCTK_THORNSTRING,
"Could not open timer output file \"%s\"", fullname);
close (oldfd);
return -1;
}
close (1);
dup (fdfile); // dup to 1, i.e., stdout again
close (fdfile);
return oldfd;
#endif
}
// Redirect stdout back
void
TimerSet::unredirect (int const oldfd)
{
if (oldfd < 0) return;
#ifdef HAVE_UNISTD_H
fflush (stdout);
close (1);
dup (oldfd);
close (oldfd);
#endif
}
// Create a new Cactus timer with the given name
Timer::Timer (char const * const timername)
: running (false)
{
assert (timername);
handle = CCTK_TimerCreate (timername);
assert (handle >= 0);
timerSet.add (this);
}
// Destroy a timer
Timer::~Timer ()
{
timerSet.remove (this);
check (not CCTK_TimerDestroyI (handle));
}
// Timer name
char const *
Timer::name ()
const
{
char const * const timername = CCTK_TimerName (handle);
assert (timername);
return timername;
}
// Print timer data
void
Timer::printData ()
{
bool const was_running = running;
if (was_running) stop();
#if 0
check (not CCTK_TimerPrintDataI (handle, -1)); // -1 means: all clocks
#endif
static cTimerData * timer = 0;
if (not timer) timer = CCTK_TimerCreateData ();
assert (timer);
CCTK_TimerI (handle, timer);
static bool firsttime = true;
if (firsttime) {
printf ("# 1: timer name");
for (int i=0; i<timer->n_vals; ++i) {
printf (" %d: %s [%s]",
i+2, timer->vals[i].heading, timer->vals[i].units);
}
printf ("\n");
firsttime = false;
}
printf ("%s:", name());
for (int i=0; i<timer->n_vals; ++i) {
switch (timer->vals[i].type) {
case val_int:
printf (" %d", timer->vals[i].val.i);
break;
case val_long:
printf (" %ld", timer->vals[i].val.l);
break;
case val_double:
printf (" %g", timer->vals[i].val.d);
break;
default:
assert (0);
}
}
printf ("\n");
if (was_running) start();
}
} // namespace Carpet
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