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//=============================================================================
/**
* @file client.cpp
*
* This is the client program that tests TAO's Smart Proxy extension.
*
* @author Kirthika Parameswaran <kirthika@cs.wustl.edu>
*/
//=============================================================================
#include "testC.h"
#include "Smart_Proxy_Impl.h"
#include "tao/debug.h"
#include "ace/High_Res_Timer.h"
#include "ace/Sched_Params.h"
#include "ace/Stats.h"
#include "ace/Throughput_Stats.h"
#include "ace/Get_Opt.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_errno.h"
const ACE_TCHAR *ior = ACE_TEXT("file://test.ior");
int niterations = 5;
int register_smart_proxy = 1;
class Marker
{
public:
void accumulate_into (ACE_Throughput_Stats &throughput) const
{
// Accumulate the throughput statistics into <throughput>
throughput.accumulate (this->throughput_);
}
void dump_stats (const ACE_TCHAR* msg,
ACE_High_Res_Timer::global_scale_factor_type gsf)
{
// Print stats
this->throughput_.dump_results (msg, gsf);
}
void sample (ACE_hrtime_t throughput_diff,
ACE_hrtime_t latency_diff)
{
// get the sample.
this->throughput_.sample (throughput_diff,
latency_diff);
}
private:
/// Keep throughput statistics on a per-thread basis
ACE_Throughput_Stats throughput_;
};
int
parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("i:n:r:"));
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'i':
ior = get_opts.opt_arg ();
break;
case 'n':
niterations = ACE_OS::atoi (get_opts.opt_arg ());
break;
case 'r':
register_smart_proxy = ACE_OS::atoi (get_opts.opt_arg ());
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s "
"-i -n"
"\n",
argv [0]),
-1);
}
return 0;
}
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
int priority =
(ACE_Sched_Params::priority_min (ACE_SCHED_FIFO)
+ ACE_Sched_Params::priority_max (ACE_SCHED_FIFO)) / 2;
// Enable FIFO scheduling, e.g., RT scheduling class on Solaris.
if (ACE_OS::sched_params (ACE_Sched_Params (ACE_SCHED_FIFO,
priority,
ACE_SCOPE_PROCESS)) != 0)
{
if (ACE_OS::last_error () == EPERM)
{
ACE_DEBUG ((LM_DEBUG,
"client (%P|%t): user is not superuser, "
"test runs in time-shared class\n"));
}
else
ACE_ERROR ((LM_ERROR,
"client (%P|%t): sched_params failed\n"));
}
try
{
CORBA::ORB_var orb =
CORBA::ORB_init (argc,
argv);
if (parse_args (argc, argv) != 0)
return 1;
CORBA::Object_var object =
orb->string_to_object (ior);
if (register_smart_proxy == 1)
{
// To use the smart proxy it is necessary to allocate the
// user-defined smart factory on the heap as the smart proxy
// generated classes take care of destroying the object. This
// way it a win situation for the application developer who
// doesnt have to make sure to destroy it and also for the smart
// proxy designer who now can manage the lifetime of the object
// much surely.
Smart_Test_Factory *test_factory = 0;
ACE_NEW_RETURN (test_factory,
Smart_Test_Factory,
-1);
ACE_UNUSED_ARG (test_factory);
}
Test_var server =
Test::_narrow (object.in ());
if (CORBA::is_nil (server.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"Object reference <%s> is nil.\n",
ior),
1);
Marker marker;
ACE_Throughput_Stats throughput;
int i=0;
ACE_DEBUG ((LM_DEBUG, "High res. timer calibration...."));
ACE_High_Res_Timer::global_scale_factor_type gsf =
ACE_High_Res_Timer::global_scale_factor ();
ACE_DEBUG ((LM_DEBUG, "done\n"));
marker.accumulate_into (throughput);
CORBA::Short price =0;
CORBA::Long cost =0;
ACE_hrtime_t throughput_base = ACE_OS::gethrtime ();
for (i = 0; i < niterations ; ++i)
{
// Record current time.
ACE_hrtime_t latency_base = ACE_OS::gethrtime ();
price = server->box_prices ();
if (price < 300)
cost = server->tickets (5);
// Grab timestamp again.
ACE_hrtime_t now = ACE_OS::gethrtime ();
// Record statistics.
marker.sample (now - throughput_base,
now - latency_base);
if (TAO_debug_level > 0 && i % 100 == 0)
ACE_DEBUG ((LM_DEBUG, "(%P|%t) iteration <%d> - price <%d> - cost <%d>\n",
i, price, cost));
}
marker.dump_stats (ACE_TEXT("buying tickets "), gsf);
server->shutdown ();
/*
Test_var server1 =
Test::_narrow (object.in ());
if (CORBA::is_nil (server1.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"Object reference <%C> is nil.\n",
ior),
1);
Marker marker1;
ACE_Throughput_Stats throughput1;
ACE_DEBUG ((LM_DEBUG, "High res. timer calibration...."));
ACE_High_Res_Timer::global_scale_factor_type gsf1 =
ACE_High_Res_Timer::global_scale_factor ();
ACE_DEBUG ((LM_DEBUG, "done\n"));
marker1.accumulate_into (throughput1);
CORBA::Short price1 =0;
CORBA::Long cost1 =0;
ACE_hrtime_t throughput_base1 = ACE_OS::gethrtime ();
for (i = 0; i < niterations ; ++i)
{
// Record current time.
ACE_hrtime_t latency_base = ACE_OS::gethrtime ();
price1 = server1->box_prices ();
if (price1 < 300)
cost = server1->tickets (5);
// Grab timestamp again.
ACE_hrtime_t now = ACE_OS::gethrtime ();
// Record statistics.
marker.sample (now - throughput_base1,
now - latency_base);
if (TAO_debug_level > 0 && i % 100 == 0)
ACE_DEBUG ((LM_DEBUG, "(%P|%t) iteration = %d\n", i));
}
marker1.dump_stats (ACE_TEXT("buying tickets using a default proxy "), gsf1);
server1->shutdown ();
*/
orb->destroy ();
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Client-side exception:");
return 1;
}
return 0;
}
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