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// $Id$
// This tests the features of the <ACE_SOCK_Connector> and
// <ACE_SOCK_Stream> classes. In addition, it can be used to test the
// oneway and twoway latency and throughput at the socket-level. This
// is useful as a baseline to compare against ORB-level performance
// for the same types of data.
#include "ace/SOCK_Connector.h"
#include "ace/INET_Addr.h"
#include "ace/Thread_Manager.h"
#include "ace/Singleton.h"
#include "ace/Get_Opt.h"
#include "ace/High_Res_Timer.h"
#include "ace/Synch.h"
ACE_RCSID(SOCK_SAP, CPP_inclient, "$Id$")
class Options
// = TITLE
// Define the options for this test.
{
public:
Options (void);
// Constructor.
~Options (void);
// Destructor.
int parse_args (int argc, char *argv[]);
// Parse the command-line arguments.
const ACE_Time_Value &sleep_time (void) const;
// Return the amount of time to sleep in order to implement the
// proper transmission rates.
u_short port (void) const;
// Port of the server.
const char *host (void) const;
// Host of the server.
size_t threads (void) const;
// Number of threads.
const char *quit_string (void) const;
// String that shuts down the client/server.
ssize_t read (void *buf, size_t len, size_t &iterations);
// Read from the appropriate location.
size_t message_len (void) const;
// Returns the length of the message to send.
const void *message_buf (void) const;
// Returns a pointer to the message.
ACE_THR_FUNC thr_func (void);
// Returns a pointer to the entry point into the thread that runs
// the client test function.
private:
int init (void);
// Initialize the message we're sending to the user and set up the
// barrier.
char *shared_client_test (u_short port,
ACE_SOCK_Stream &cli_stream);
// Performs the shared behavior of the oneway and twoway client
// tests.
static void *twoway_client_test (void *);
// Performs the twoway test.
static void *oneway_client_test (void *);
// Performs the oneway test.
const char *host_;
// Host of the server.
u_short port_;
// Port of the server.
ACE_Time_Value sleep_time_;
// Sleep_Time value.
size_t threads_;
// Number of threads.
const char *quit_string_;
// String that shuts down the client/server.
size_t message_len_;
// Size of the message we send to the server.
char *message_buf_;
// Pointer to the message we send to the server.
ACE_HANDLE io_source_;
// Are we reading I/O from ACE_STDIN or from our generator?
size_t iterations_;
// Number of iterations.
char oneway_;
// Are we running oneway or twoway?
ACE_MT (ACE_Barrier *barrier_);
// Barrier used to synchronize the start of all the threads.
};
Options::Options (void)
: host_ (ACE_DEFAULT_SERVER_HOST),
port_ (ACE_DEFAULT_SERVER_PORT),
sleep_time_ (0, 0), // By default, don't sleep between calls.
threads_ (10),
quit_string_ ("q"),
message_len_ (0),
message_buf_ (0),
io_source_ (ACE_INVALID_HANDLE), // Defaults to using the generator.
iterations_ (10000),
oneway_ (1), // Make oneway calls the default.
barrier_ (0)
{
}
Options::~Options (void)
{
delete this->barrier_;
delete [] this->message_buf_;
}
// Options Singleton.
typedef ACE_Singleton<Options, ACE_SYNCH_RECURSIVE_MUTEX> OPTIONS;
int
Options::init (void)
{
// Check for default case.
if (this->message_len_ == 0)
this->message_len_ = ACE_OS::strlen ("TAO");
this->message_len_ += sizeof (ACE_UINT32);
ACE_NEW_RETURN (this->message_buf_,
char[this->message_len_],
-1);
// Copy the length into the beginning of the message.
ACE_UINT32 length = ntohl (this->message_len_);
ACE_OS::memcpy ((void *) this->message_buf_,
(void *) &length,
sizeof length);
ACE_OS::memset ((void *) (this->message_buf_ + sizeof (ACE_UINT32)),
'a',
this->message_len_ - sizeof (ACE_UINT32));
// Allocate the barrier with the correct count.
ACE_NEW_RETURN (this->barrier_,
ACE_Barrier (this->threads_),
-1);
return 0;
}
size_t
Options::message_len (void) const
{
return this->message_len_;
}
const void *
Options::message_buf (void) const
{
return this->message_buf_;
}
ssize_t
Options::read (void *buf, size_t len, size_t &iteration)
{
ACE_UNUSED_ARG (len);
if (this->io_source_ == ACE_STDIN)
return ACE_OS::read (ACE_STDIN, buf, len);
else if (iteration >= this->iterations_)
return 0;
else
{
ACE_OS::memcpy (buf,
this->message_buf (),
len);
iteration++;
return len;
}
}
int
Options::parse_args (int argc, char *argv[])
{
ACE_Get_Opt getopt (argc, argv, "2h:i:m:p:q:st:T:", 1);
for (int c; (c = getopt ()) != -1; )
switch (c)
{
case '2': // Disable the oneway client.
this->oneway_ = 0;
break;
case 'h':
this->host_ = getopt.optarg;
break;
case 'i':
this->iterations_ = ACE_OS::atoi (getopt.optarg);
break;
case 'm':
this->message_len_ = ACE_OS::atoi (getopt.optarg);
break;
case 'p':
this->port_ = ACE_OS::atoi (getopt.optarg);
break;
case 'q':
this->quit_string_ = getopt.optarg;
break;
case 's':
this->io_source_ = ACE_STDIN;
break;
case 't':
this->threads_ = (size_t) ACE_OS::atoi (getopt.optarg);
break;
case 'T':
this->sleep_time_.set (0, ACE_OS::atoi (getopt.optarg));
break;
default:
ACE_ERROR_RETURN ((LM_ERROR,
"(%P|%t) usage: %n [-2] [-h <host>] [-i iterations] [-m message-size] [-p <port>] [-q <quit string>] [-s] [-t <threads>] [-T <sleep_time>]"),
-1);
}
return this->init ();
}
u_short
Options::port (void) const
{
return this->port_;
}
const char *
Options::host (void) const
{
return this->host_;
}
const char *
Options::quit_string (void) const
{
return this->quit_string_;
}
size_t
Options::threads (void) const
{
return this->threads_;
}
const ACE_Time_Value &
Options::sleep_time (void) const
{
return this->sleep_time_;
}
char *
Options::shared_client_test (u_short port,
ACE_SOCK_Stream &cli_stream)
{
ACE_INET_Addr remote_addr (port, this->host_);
ACE_SOCK_Connector con;
if (con.connect (cli_stream,
remote_addr) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"(%P|%t) %p\n",
"connection failed"),
0);
else
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) connected to %s at port %d\n",
remote_addr.get_host_name (),
remote_addr.get_port_number ()));
ACE_INT32 len = htonl (this->message_len ());
// Allocate the transmit buffer.
char *buf;
ACE_NEW_RETURN (buf,
char[len],
0);
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) waiting...\n"));
// Wait for all other threads to finish initialization.
this->barrier_->wait ();
return buf;
}
// Static function entry point to the oneway client service.
void *
Options::oneway_client_test (void *)
{
Options *options = OPTIONS::instance ();
ACE_SOCK_Stream cli_stream;
// Add 1 to the port to trigger the oneway test!
char *request = options->shared_client_test (options->port () + 1,
cli_stream);
// This variable is allocated off the stack to obviate the need for
// locking.
size_t iteration = 0;
// Keep track of return value.
int result = 0;
ACE_INT32 len = options->message_len ();
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) starting oneway transmission\n"));
// Perform oneway transmission of data to server (correctly handles
// "incomplete writes").
for (ssize_t r_bytes;
(r_bytes = options->read (request, len, iteration)) > 0;
// Transmit at the proper rate.
ACE_OS::sleep (options->sleep_time ()))
if (ACE_OS::memcmp (request,
options->quit_string (),
ACE_OS::strlen (options->quit_string ())) == 0)
break;
else if (cli_stream.send_n (request, r_bytes) == -1)
{
ACE_ERROR ((LM_ERROR,
"(%P|%t) %p\n",
"send_n"));
result = -1;
break;
}
// Close the connection.
cli_stream.close ();
delete [] request;
return (void *) result;
}
// Static function entry point to the twoway client service.
void *
Options::twoway_client_test (void *)
{
Options *options = OPTIONS::instance ();
ACE_SOCK_Stream cli_stream;
char *request = options->shared_client_test (options->port (),
cli_stream);
// This variable is allocated off the stack to obviate the need for
// locking.
size_t iteration = 0;
// Keep track of return value.
int result = 0;
// Timer business.
ACE_High_Res_Timer timer;
ACE_INT32 len = options->message_len ();
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) starting twoway transmission\n"));
// Perform twoway transmission of data to server (correctly handles
// "incomplete writes").
for (ssize_t r_bytes;
(r_bytes = options->read (request, len, iteration)) > 0;
// Transmit at the proper rate.
ACE_OS::sleep (options->sleep_time ()))
if (ACE_OS::memcmp (request,
options->quit_string (),
ACE_OS::strlen (options->quit_string ())) == 0)
break;
// Transmit <request> to the server.
else
{
// Note that we use the incremental feature of the
// <ACE_High_Res_Timer> so that we don't get "charged" for the
// <ACE_OS::sleep> used to control the rate at which requests
// are sent.
timer.start_incr ();
if (cli_stream.send_n (request, r_bytes) == -1)
{
ACE_ERROR ((LM_ERROR,
"(%P|%t) %p\n",
"send_n"));
result = -1;
break;
}
// Receive the reply from the server. Normally, it just sends
// back 24 bytes, which is typical for an IIOP reply.
else if (cli_stream.recv (request, r_bytes) <= 0)
{
ACE_ERROR ((LM_ERROR,
"(%P|%t) %p\n",
"recv"));
result = -1;
break;
}
timer.stop_incr ();
}
ACE_Time_Value tv;
timer.elapsed_time_incr (tv);
double real_time = tv.sec () * ACE_ONE_SECOND_IN_USECS + tv.usec ();
double messages_per_sec = iteration * double (ACE_ONE_SECOND_IN_USECS) / real_time;
ACE_DEBUG ((LM_DEBUG,
ASYS_TEXT ("(%t) messages = %d\n(%t) usec-per-message = %f\n(%t) messages-per-second = %0.00f\n"),
iteration,
real_time / double (iteration),
messages_per_sec < 0 ? 0 : messages_per_sec));
// Close the connection.
cli_stream.close ();
delete [] request;
return (void *) result;
}
ACE_THR_FUNC
Options::thr_func (void)
{
if (this->oneway_ == 0)
return ACE_THR_FUNC (&Options::twoway_client_test);
else
return ACE_THR_FUNC (&Options::oneway_client_test);
}
static int
run_client (void)
{
// Raise the socket handle limit to the maximum.
ACE::set_handle_limit ();
#if defined (ACE_HAS_THREADS)
if (ACE_Thread_Manager::instance ()->spawn_n (OPTIONS::instance ()->threads (),
OPTIONS::instance ()->thr_func ()) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"(%P|%t) %p\n",
"spawn_n"),
1);
else
ACE_Thread_Manager::instance ()->wait ();
#else
client (0);
#endif /* ACE_HAS_THREADS */
return 0;
}
int
main (int argc, char *argv[])
{
// Initialize the logger.
ACE_LOG_MSG->open (argv[0]);
if (OPTIONS::instance ()->parse_args (argc, argv) == -1)
return -1;
// Run the client
run_client ();
return 0;
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Singleton<Options, ACE_SYNCH_RECURSIVE_MUTEX>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Singleton<Options, ACE_SYNCH_RECURSIVE_MUTEX>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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