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// $Id$
#include "ace/Get_Opt.h"
#include "ace/Task.h"
#include "ace/Stats.h"
#include "ace/High_Res_Timer.h"
#include "ace/Sched_Params.h"
#include "testC.h"
ACE_RCSID(Latency, client, "$Id$")
const char *ior = "file://test.ior";
int nthreads = 5;
int niterations = 5;
int sleep_flag = 0;
ACE_Time_Value sleep_time (0, 10000);
int
parse_args (int argc, char *argv[])
{
ACE_Get_Opt get_opts (argc, argv, "k:n:i:s");
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'k':
ior = get_opts.optarg;
break;
case 'n':
nthreads = ACE_OS::atoi (get_opts.optarg);
break;
case 'i':
niterations = ACE_OS::atoi (get_opts.optarg);
break;
case 's':
sleep_flag = 1;
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s "
"-k <ior> "
"-n <nthreads> "
"-i <niterations> "
"\n",
argv [0]),
-1);
}
// Indicates sucessful parsing of the command line
return 0;
}
class Client : public ACE_Task_Base
{
// = TITLE
// Run the client thread
//
// = DESCRIPTION
// Use the ACE_Task_Base class to run the client threads.
//
public:
Client (void);
// ctor
void set (Test_ptr server, int niterations);
// Set the test attributes.
void accumulate_into (ACE_Throughput_Stats &throughput) const;
// Accumulate the throughput statistics into <throughput>
void dump_stats (const char* msg, ACE_UINT32 gsf);
// Accumulate the throughput statistics into <throughput>
// = The ACE_Task_Base methods....
virtual int svc (void);
private:
Test_var server_;
// The server.
int niterations_;
// The number of iterations on each client thread.
ACE_Throughput_Stats throughput_;
// Keep throughput statistics on a per-thread basis
};
int
main (int argc, char *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,
"server (%P|%t): user is not superuser, "
"test runs in time-shared class\n"));
}
else
ACE_ERROR ((LM_ERROR,
"server (%P|%t): sched_params failed\n"));
}
ACE_TRY_NEW_ENV
{
ACE_DEBUG ((LM_DEBUG, "High res. timer calibration...."));
ACE_High_Res_Timer::calibrate ();
ACE_DEBUG ((LM_DEBUG, "done\n"));
CORBA::ORB_var orb =
CORBA::ORB_init (argc, argv, "", ACE_TRY_ENV);
ACE_TRY_CHECK;
if (parse_args (argc, argv) != 0)
return 1;
CORBA::Object_var object =
orb->string_to_object (ior, ACE_TRY_ENV);
ACE_TRY_CHECK;
Test_var server =
Test::_narrow (object.in (), ACE_TRY_ENV);
ACE_TRY_CHECK;
if (CORBA::is_nil (server.in ()))
{
ACE_ERROR_RETURN ((LM_ERROR,
"Object reference <%s> is nil\n",
ior),
1);
}
Client* client;
ACE_NEW_RETURN (client, Client[nthreads], 1);
for (int i = 0; i != nthreads; ++i)
{
client[i].set (server.in (), niterations);
if (client[i].activate (THR_NEW_LWP | THR_JOINABLE) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Cannot activate client threads\n"),
1);
}
ACE_Thread_Manager::instance ()->wait ();
ACE_DEBUG ((LM_DEBUG, "threads finished\n"));
ACE_Throughput_Stats throughput;
ACE_UINT32 gsf = ACE_High_Res_Timer::global_scale_factor ();
for (int j = 0; j != nthreads; ++j)
{
client[j].accumulate_into (throughput);
char buf[64];
ACE_OS::sprintf (buf, "Thread[%d]", j);
client[j].dump_stats (buf, gsf);
}
throughput.dump_results ("Aggregated", gsf);
// server->shutdown (ACE_TRY_ENV);
// ACE_TRY_CHECK;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"Catched exception:");
return 1;
}
ACE_ENDTRY;
return 0;
}
// ****************************************************************
Client::Client (void)
{
}
void
Client::set (Test_ptr server, int niterations)
{
this->server_ = Test::_duplicate (server);
this->niterations_ = niterations;
}
int
Client::svc (void)
{
ACE_TRY_NEW_ENV
{
// @@ We should use "validate_connection" for this
for (int j = 0; j < 100; ++j)
{
server_->_is_a ("IDL:Test:1.0", ACE_TRY_ENV);
ACE_TRY_CHECK;
}
ACE_hrtime_t throughput_base = ACE_OS::gethrtime ();
for (int i = 0; i < this->niterations_; ++i)
{
// Record current time.
ACE_hrtime_t latency_base = ACE_OS::gethrtime ();
// Invoke method.
server_->test_method (ACE_TRY_ENV);
// Grab timestamp again.
ACE_hrtime_t now = ACE_OS::gethrtime ();
// Record statistics.
this->throughput_.sample (now - throughput_base,
now - latency_base);
ACE_TRY_CHECK;
// Sleep for 10 msecs.
if (sleep_flag)
ACE_OS::sleep (sleep_time);
if (TAO_debug_level > 0 && i % 100 == 0)
ACE_DEBUG ((LM_DEBUG, "(%P|%t) iteration = %d\n", i));
}
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"Latency: exception raised");
}
ACE_ENDTRY;
return 0;
}
void
Client::accumulate_into (ACE_Throughput_Stats &throughput) const
{
throughput.accumulate (this->throughput_);
}
void
Client::dump_stats (const char* msg, ACE_UINT32 gsf)
{
this->throughput_.dump_results (msg, gsf);
}
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