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// Profile_Timer.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/Profile_Timer.h"
#if defined (ACE_HAS_PRUSAGE_T) || defined (ACE_HAS_GETRUSAGE)
#if !defined (__ACE_INLINE__)
#include "ace/Profile_Timer.i"
#endif /* __ACE_INLINE__ */
ACE_ALLOC_HOOK_DEFINE(ACE_Profile_Timer)
void
ACE_Profile_Timer::dump (void) const
{
ACE_TRACE ("ACE_Profile_Timer::dump");
}
// Initialize interval timer.
ACE_Profile_Timer::ACE_Profile_Timer (void)
{
ACE_TRACE ("ACE_Profile_Timer::ACE_Profile_Timer");
ACE_OS::memset (&this->end_usage_, 0, sizeof this->end_usage_);
ACE_OS::memset (&this->begin_usage_, 0, sizeof this->begin_usage_);
ACE_OS::memset (&this->last_usage_, 0, sizeof this->last_usage_);
#if defined (ACE_HAS_PRUSAGE_T)
ACE_OS::memset (&this->last_usage_, 0, sizeof this->last_usage_);
char buf[20];
ACE_OS::sprintf (buf, "/proc/%d", ACE_OS::getpid ());
if ((this->proc_handle_ = ACE_OS::open (buf, O_RDONLY, 0)) == -1)
ACE_OS::perror (buf);
#elif defined (ACE_HAS_GETRUSAGE)
ACE_OS::memset (&this->begin_time_, 0, sizeof this->begin_time_);
ACE_OS::memset (&this->end_time_, 0, sizeof this->end_time_);
ACE_OS::memset (&this->last_time_, 0, sizeof this->last_time_);
#endif /* ACE_HAS_PRUSAGE_T */
}
// Terminate the interval timer.
ACE_Profile_Timer::~ACE_Profile_Timer (void)
{
ACE_TRACE ("ACE_Profile_Timer::~ACE_Profile_Timer");
#if defined (ACE_HAS_PRUSAGE_T)
if (ACE_OS::close (this->proc_handle_) == -1)
ACE_OS::perror ("ACE_Profile_Timer::~ACE_Profile_Timer");
#endif /* ACE_HAS_PRUSAGE_T */
}
// Return the resource utilization.
void
ACE_Profile_Timer::get_rusage (ACE_Profile_Timer::Rusage &usage)
{
ACE_TRACE ("ACE_Profile_Timer::get_rusage");
usage = this->end_usage_;
}
#if defined (ACE_HAS_PRUSAGE_T)
// Compute the amount of resource utilization since the start time.
void
ACE_Profile_Timer::elapsed_rusage (ACE_Profile_Timer::Rusage &rusage)
{
ACE_TRACE ("ACE_Profile_Timer::elapsed_rusage");
rusage.pr_lwpid = this->end_usage_.pr_lwpid - this->last_usage_.pr_lwpid;
rusage.pr_count = this->end_usage_.pr_count - this->last_usage_.pr_count;
rusage.pr_minf = this->end_usage_.pr_minf - this->last_usage_.pr_minf;
rusage.pr_majf = this->end_usage_.pr_majf - this->last_usage_.pr_majf;
rusage.pr_inblk = this->end_usage_.pr_inblk - this->last_usage_.pr_inblk;
rusage.pr_oublk = this->end_usage_.pr_oublk - this->last_usage_.pr_oublk;
rusage.pr_msnd = this->end_usage_.pr_msnd - this->last_usage_.pr_msnd;
rusage.pr_mrcv = this->end_usage_.pr_mrcv - this->last_usage_.pr_mrcv;
rusage.pr_sigs = this->end_usage_.pr_sigs - this->last_usage_.pr_sigs;
this->subtract (rusage.pr_wtime, this->end_usage_.pr_wtime, this->last_usage_.pr_wtime);
this->subtract (rusage.pr_ltime, this->end_usage_.pr_ltime, this->last_usage_.pr_ltime);
this->subtract (rusage.pr_slptime, this->end_usage_.pr_slptime, this->last_usage_.pr_slptime);
rusage.pr_vctx = this->end_usage_.pr_vctx - this->last_usage_.pr_vctx;
rusage.pr_ictx = this->end_usage_.pr_ictx - this->last_usage_.pr_ictx;
rusage.pr_sysc = this->end_usage_.pr_sysc - this->last_usage_.pr_sysc;
rusage.pr_ioch = this->end_usage_.pr_ioch - this->last_usage_.pr_ioch;
}
// Compute the elapsed time.
void
ACE_Profile_Timer::compute_times (ACE_Elapsed_Time &et)
{
ACE_TRACE ("ACE_Profile_Timer::compute_times");
timestruc_t td;
ACE_Profile_Timer::Rusage &end = this->end_usage_;
ACE_Profile_Timer::Rusage &begin = this->begin_usage_;
this->subtract (td, end.pr_tstamp, begin.pr_tstamp);
et.real_time = td.tv_sec + ((double) td.tv_nsec) / (1000 * 1000 * 1000);
this->subtract (td, end.pr_utime, begin.pr_utime);
et.user_time = td.tv_sec + ((double) td.tv_nsec) / (1000 * 1000 * 1000);
this->subtract (td, end.pr_stime, begin.pr_stime);
et.system_time = td.tv_sec + ((double) td.tv_nsec) / (1000 * 1000 * 1000);
}
// Determine the difference between T1 and T2.
void
ACE_Profile_Timer::subtract (timestruc_t &tdiff, timestruc_t &t1, timestruc_t &t0)
{
ACE_TRACE ("ACE_Profile_Timer::subtract");
tdiff.tv_sec = t1.tv_sec - t0.tv_sec;
tdiff.tv_nsec = t1.tv_nsec - t0.tv_nsec;
// Normalize the time.
while (tdiff.tv_nsec < 0)
{
tdiff.tv_sec--;
tdiff.tv_nsec += (1000 * 1000 * 1000);
}
}
#elif defined (ACE_HAS_GETRUSAGE)
// Compute the amount of resource utilization since the start time.
void
ACE_Profile_Timer::elapsed_rusage (ACE_Profile_Timer::Rusage &usage)
{
ACE_TRACE ("ACE_Profile_Timer::elapsed_rusage");
#if !defined (ACE_WIN32) && !defined (ACE_HAS_LIMITED_RUSAGE_T)
// integral shared memory size
usage.ru_ixrss = this->end_usage_.ru_ixrss - this->last_usage_.ru_ixrss;
// integral unshared data "
usage.ru_idrss = this->end_usage_.ru_idrss - this->last_usage_.ru_idrss;
// integral unshared stack "
usage.ru_isrss = this->end_usage_.ru_isrss - this->last_usage_.ru_isrss;
// page reclaims - total vmfaults
usage.ru_minflt = this->end_usage_.ru_minflt - this->last_usage_.ru_minflt;
// page faults
usage.ru_majflt = this->end_usage_.ru_majflt - this->last_usage_.ru_majflt;
// swaps
usage.ru_nswap = this->end_usage_.ru_nswap - this->last_usage_.ru_nswap;
// block input operations
usage.ru_inblock = this->end_usage_.ru_inblock -
this->last_usage_.ru_inblock;
// block output operations
usage.ru_oublock = this->end_usage_.ru_oublock -
this->last_usage_.ru_oublock;
// messages sent
usage.ru_msgsnd = this->end_usage_.ru_msgsnd - this->last_usage_.ru_msgsnd;
// messages received
usage.ru_msgrcv = this->end_usage_.ru_msgrcv - this->last_usage_.ru_msgrcv;
// signals received
usage.ru_nsignals = this->end_usage_.ru_nsignals -
this->last_usage_.ru_nsignals;
// voluntary context switches
usage.ru_nvcsw = this->end_usage_.ru_nvcsw - this->last_usage_.ru_nvcsw;
// involuntary context switches
usage.ru_nivcsw = this->end_usage_.ru_nivcsw - this->last_usage_.ru_nivcsw;
#else
ACE_UNUSED_ARG(usage);
#endif /* ACE_WIN32 */
}
void
ACE_Profile_Timer::compute_times (ACE_Elapsed_Time &et)
{
ACE_TRACE ("ACE_Profile_Timer::compute_times");
#if defined (ACE_WIN32)
ACE_Time_Value atv = this->end_time_ - this->begin_time_;
et.real_time = atv.sec () + ((double) atv.usec ()) / (1000 * 1000);
atv = ACE_Time_Value (this->end_usage_.ru_utime)
- ACE_Time_Value (this->begin_usage_.ru_utime);
et.user_time = atv.sec () + ((double) atv.usec ()) / (1000 * 1000);
atv = ACE_Time_Value (this->end_usage_.ru_stime)
- ACE_Time_Value (this->begin_usage_.ru_stime);
et.system_time = atv.sec () + ((double) atv.usec ()) / (1000 * 1000);
#else
timeval td;
this->subtract (td, this->end_time_, this->begin_time_);
et.real_time = td.tv_sec + ((double) td.tv_usec) / (1000 * 1000);
this->subtract (td, this->end_usage_.ru_utime, this->begin_usage_.ru_utime);
et.user_time = td.tv_sec + ((double) td.tv_usec) / (1000 * 1000);
this->subtract (td, this->end_usage_.ru_stime, this->begin_usage_.ru_stime);
et.system_time = td.tv_sec + ((double) td.tv_usec) / (1000 * 1000);
#endif /* ACE_WIN32 */
}
// Determine the difference between T1 and T2.
void
ACE_Profile_Timer::subtract (timeval &tdiff, timeval &t1, timeval &t0)
{
ACE_TRACE ("ACE_Profile_Timer::subtract");
tdiff.tv_sec = t1.tv_sec - t0.tv_sec;
tdiff.tv_usec = t1.tv_usec - t0.tv_usec;
// Normalize the time.
while (tdiff.tv_usec < 0)
{
tdiff.tv_sec--;
tdiff.tv_usec += (1000 * 1000);
}
}
#endif /* ACE_HAS_PRUSAGE_T */
// Compute the amount of time that has elapsed between start and stop.
int
ACE_Profile_Timer::elapsed_time (ACE_Elapsed_Time &et)
{
ACE_TRACE ("ACE_Profile_Timer::elapsed_time");
this->compute_times (et);
return 0;
}
#endif /* defined (ACE_HAS_PRUSAGE_T) || defined (ACE_HAS_GETRUSAGE) */
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