我的Dev的Reactor与普通的连接数没区别
ACE_Dev_Poll_Reactor *dp_reactor;dp_reactor=new ACE_Dev_Poll_Reactor;
ACE_Reactor::instance(new ACE_Reactor(dp_reactor))->run_reactor_event_loop();
我做的ACE_Dev_Poll_Reactor和普通的ACE_Reactor的用户连接数是一样多的。 我做了服务器，又写了测试程序，当有1016个客户端接入服务后，就不能再有客户端连上了，因为看资料说ACE_Dev_Pool_Reactor可以实现大用户量接入的。但测试结果不像所说的那样。 我怎么没发现这个问题呢？
你按照ACE的测试代码改写试试。
//=============================================================================
/**
*@file Dev_Poll_Reactor_Test.cpp
*
*Dev_Poll_Reactor_Test.cpp,v 4.19 2005/11/15 14:32:27 shuston Exp
*
*This test verifies that the Dev_Poll_Reactor is functioning
*properly, and demonstrates how "speculative reads" can be
*performed."Speculative reads" are necessary when using event
*demultiplexing mechanisms that use a "state change" interface.
*Similarly, "speculative writes" may be necessary, i.e. keep
*writing until the connection is flow controlled.An example of a
*demuxing mechanism with such an interface is Linux's `/dev/epoll'
*character device.Mechansims with state change interfaces are
*also said to be "edge triggered," versus "level triggered"
*mechanisms such as select().
*
*@author Ossama Othman <ossama@dre.vanderbilt.edu>
*/
//=============================================================================
#include "test_config.h"
ACE_RCSID (tests,
Dev_Poll_Reactor_Test,
"Dev_Poll_Reactor_Test.cpp,v 4.19 2005/11/15 14:32:27 shuston Exp")
#if defined (ACE_HAS_DEV_POLL) || defined (ACE_HAS_EVENT_POLL)
#include "ace/OS_NS_signal.h"
#include "ace/Reactor.h"
#include "ace/Dev_Poll_Reactor.h"
#include "ace/Acceptor.h"
#include "ace/Connector.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/SOCK_Connector.h"
#include "ace/SOCK_Stream.h"
#include "ace/OS_NS_unistd.h"
#include "ace/OS_NS_netdb.h"
typedef ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH> SVC_HANDLER;
// ----------------------------------------------------
class Client : public SVC_HANDLER
{
public:
Client (void);
virtual int open (void * = 0);
virtual int handle_output (ACE_HANDLE handle);
virtual int handle_timeout (const ACE_Time_Value ¤t_time,
const void *act);
virtual int handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask mask);
private:
unsigned int call_count_;
};
class Server : public SVC_HANDLER
{
public:
Server (void);
virtual int handle_input (ACE_HANDLE handle);
virtual int handle_timeout (const ACE_Time_Value ¤t_time,
const void *act);
virtual int handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask mask);
private:
unsigned int call_count_;
};
// ----------------------------------------------------
Client::Client (void)
: call_count_ (0)
{
}
int
Client::open (void *)
{
//ACE_ASSERT (this->reactor () != 0);
if (this->reactor ()
&& this->reactor ()->register_handler (
this,
ACE_Event_Handler::WRITE_MASK) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("unable to register client handler")),
-1);
return 0;
}
int
Client::handle_output (ACE_HANDLE)
{
for (int i = 1; i <= 5; ++i)
{
char buffer = { 0 };
ACE_OS::sprintf (buffer, "test message %d.\n", i);
ssize_t bytes_sent =
this->peer ().send (buffer, ACE_OS::strlen (buffer));
if (bytes_sent == -1)
{
if (errno == EWOULDBLOCK)
return 0;// Flow control kicked in.
else if (errno == EPIPE)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t) Client::handle_output; server ")
ACE_TEXT ("closed handle %d\n"),
this->peer ().get_handle ()));
return -1;
}
else
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Client::handle_output")),
-1);
}
else if (bytes_sent == 0)
return -1;
else
ACE_DEBUG ((LM_INFO, ACE_TEXT ("(%t) Sent %s"), buffer));
}
return 0;
}
int
Client::handle_timeout (const ACE_Time_Value &, const void *)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Expected client timeout occured at: %T\n")));
this->call_count_++;
int status = this->handle_output (this->get_handle ());
if (status == -1 || this->call_count_ > 10)
{
if (this->reactor ()->end_reactor_event_loop () == 0)
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Successful client reactor shutdown.\n")));
else
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Failed client reactor shutdown")));
// Force this service handler to be closed in either case.
return -1;
}
return 0;
}
int
Client::handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask mask)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Client Svc_Handler closed ")
ACE_TEXT ("handle <%d> with reactor mask <0x%x>.\n"),
handle,
mask));
return 0;
}
// ----------------------------------------------------
Server::Server (void)
: call_count_ (0)
{
}
int
Server::handle_input (ACE_HANDLE /* handle */)
{
char buffer = { 0 }; // Insure a trailing nul
ssize_t bytes_read = 0;
char * const begin = buffer;
char * const end = buffer + BUFSIZ;
for (char * buf = begin; buf < end; buf += bytes_read)
{
// Keep reading until it is no longer possible to do so.
//
// This is done since the underlying event demultiplexing
// mechanism may have a "state change" interface (as opposed to
// "state monitoring"), in which case a "speculative" read is
// done.
bytes_read = this->peer ().recv (buf, end - buf);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("****** bytes_read = %d\n"),
bytes_read));
if (bytes_read == -1)
{
if (errno == EWOULDBLOCK)
{
// ACE_HEX_DUMP ((LM_DEBUG,
// buf,
// 80,
// "BUFFER CONTENTS"));
if (buf == buffer)
return 0;
else
break;
}
else
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Server::handle_input")),
-1);
}
else if (bytes_read == 0)
return -1;
}
ACE_DEBUG ((LM_INFO, ACE_TEXT ("(%t) Message received: %s\n"), buffer));
return 0;
}
int
Server::handle_timeout (const ACE_Time_Value &,
const void *)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Expected server timeout occured at: %T\n")));
// if (this->call_count_ == 0
// && this->handle_input (this->get_handle ()) != 0
// && errno != EWOULDBLOCK)
// return -1;
// ACE_DEBUG ((LM_INFO,
// "SERVER HANDLE = %d\n",
// this->get_handle ()));
this->call_count_++;
if (this->call_count_ > 10)
{
if (this->reactor ()->end_reactor_event_loop () == 0)
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Successful server reactor shutdown.\n")));
else
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Failed server reactor shutdown")));
// Force this service handler to be closed in either case.
return -1;
}
return 0;
}
int
Server::handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask mask)
{
if (this->call_count_ > 4)
{
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Server Svc_Handler closing ")
ACE_TEXT ("handle <%d,%d> with reactor mask <0x%x>.\n"),
handle,
this->get_handle (),
mask));
return this->peer ().close ();
}
return 0;
}
// ----------------------------------------------------
typedef ACE_Acceptor<Server, ACE_SOCK_ACCEPTOR> ACCEPTOR;
typedef ACE_Connector<Client, ACE_SOCK_CONNECTOR> CONNECTOR;
// ----------------------------------------------------
class TestAcceptor : public ACCEPTOR
{
public:
virtual int accept_svc_handler (Server * handler)
{
int result = this->ACCEPTOR::accept_svc_handler (handler);
if (result != 0)
{
if (errno != EWOULDBLOCK)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to accept connection")));
return result;
}
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t) Accepted connection.")
ACE_TEXT ("Stream handle: <%d>\n"),
handler->get_handle ()));
// if (handler->handle_input (handler->get_handle ()) == -1
// && errno != EWOULDBLOCK)
// return -1;
// #if 0
ACE_Time_Value delay (2, 0);
ACE_Time_Value restart (2, 0);
if (handler->reactor ()->schedule_timer (handler,
0,
delay,
restart) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to schedule server side ")
ACE_TEXT ("timer in ACE_Dev_Poll_Reactor")),
-1);
}
// #endif/* 0 */
return result;
}
};
// ----------------------------------------------------
class TestConnector : public CONNECTOR
{
public:
virtual int connect_svc_handler (
CONNECTOR::handler_type *& handler,
const CONNECTOR::addr_type &remote_addr,
ACE_Time_Value *timeout,
const CONNECTOR::addr_type &local_addr,
int reuse_addr,
int flags,
int perms)
{
const int result = this->CONNECTOR::connect_svc_handler (handler,
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
if (result != 0)
return result;
ACE_TCHAR hostname;
if (remote_addr.get_host_name (hostname,
sizeof (hostname)) != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to retrieve hostname")),
-1);
}
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t) Connected to <%s:%d>.\n"),
hostname,
(int) remote_addr.get_port_number ()));
// #if 0
ACE_Time_Value delay (4, 0);
ACE_Time_Value restart (3, 0);
if (handler->reactor ()->schedule_timer (handler,
0,
delay,
restart) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to schedule client side ")
ACE_TEXT ("timer in ACE_Dev_Poll_Reactor")),
-1);
}
// #endif/* 0 */
return result;
}
virtual int connect_svc_handler (
CONNECTOR::handler_type *& handler,
CONNECTOR::handler_type *& sh_copy,
const CONNECTOR::addr_type &remote_addr,
ACE_Time_Value *timeout,
const CONNECTOR::addr_type &local_addr,
int reuse_addr,
int flags,
int perms) {
sh_copy = handler;
return this->connect_svc_handler (handler, remote_addr, timeout,
local_addr, reuse_addr, flags,
perms);
}
};
// ----------------------------------------------------
ACE_THR_FUNC_RETURN
server_worker (void *p)
{
const unsigned short port = *(static_cast<unsigned short *> (p));
ACE_INET_Addr addr;
if (addr.set (port, INADDR_LOOPBACK) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("server_worker - ACE_INET_Addr::set")));
return (void *) -1;
}
ACE_Dev_Poll_Reactor dp_reactor;
dp_reactor.restart (1); // Restart on EINTR
ACE_Reactor reactor (&dp_reactor);
TestAcceptor server;
int flags = 0;
ACE_SET_BITS (flags, ACE_NONBLOCK);// Enable non-blocking in the
// Svc_Handlers.
if (server.open (addr, &reactor, flags) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to open server service handler")));
return (void *) -1;
}
if (reactor.run_reactor_event_loop () != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Error when running server ")
ACE_TEXT ("reactor event loop")));
return (void *) -1;
}
ACE_DEBUG ((LM_INFO,
ACE_TEXT ("(%t) Reactor event loop finished ")
ACE_TEXT ("successfully.\n")));
return 0;
}
// ----------------------------------------------------
// struct server_arg
// {
// unsigned short port;
// ACE_Condition<ACE_SYNCH_MUTEX> * cv;
// };
// ----------------------------------------------------
int
run_main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Dev_Poll_Reactor_Test"));
// Make sure we ignore SIGPIPE
sigset_t sigsetNew;
sigset_t sigsetOld;
ACE_OS::sigemptyset (sigsetNew);
ACE_OS::sigaddset (sigsetNew, SIGPIPE);
ACE_OS::sigprocmask (SIG_BLOCK, sigsetNew, sigsetOld);
ACE_Dev_Poll_Reactor dp_reactor;
dp_reactor.restart (1); // Restart on EINTR
ACE_Reactor reactor (&dp_reactor);
TestConnector client;
int flags = 0;
ACE_SET_BITS (flags, ACE_NONBLOCK);// Enable non-blocking in the
// Svc_Handlers.
if (client.open (&reactor, flags) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to open client service handler")),
-1);
// ACE_SYNCH_MUTEX mutex;
// ACE_Condition<ACE_SYNCH_MUTEX> cv (mutex);
// server_arg arg;
// arg.port = 54678;// Port the server will listen on.
// arg.cv = &cv;
unsigned short port = 54678;
if (ACE_Thread_Manager::instance ()->spawn (server_worker, &port) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to spawn server thread")),
-1);
ACE_OS::sleep (5);// Wait for the listening endpoint to be set up.
ACE_INET_Addr addr;
if (addr.set (port, INADDR_LOOPBACK) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("ACE_INET_Addr::set")),
-1);
Client *client_handler = 0;
if (client.connect (client_handler, addr) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Unable to connect to server")),
-1);
if (reactor.run_reactor_event_loop () != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Error when running client ")
ACE_TEXT ("reactor event loop")),
-1);
if (ACE_Thread_Manager::instance ()->wait () != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("(%t) %p\n"),
ACE_TEXT ("Error waiting for threads to complete")),
-1);
ACE_END_TEST;
return 0;
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>;
template class ACE_Acceptor<Server, ACE_SOCK_ACCEPTOR>;
template class ACE_Connector_Base<Client>;
template class ACE_Connector<Client, ACE_SOCK_CONNECTOR>;
template class ACE_NonBlocking_Connect_Handler<Client>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
#pragma instantiate ACE_Acceptor<Server, ACE_SOCK_ACCEPTOR>
#pragma instantiate ACE_Connector_Base<Client>
#pragma instantiate ACE_Connector<Client, ACE_SOCK_CONNECTOR>
#pragma instantiate ACE_NonBlocking_Connect_Handler<Client>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
#else
int
run_main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Dev_Poll_Reactor_Test"));
ACE_ERROR ((LM_INFO,
ACE_TEXT ("Dev Poll and Event Poll are not supported ")
ACE_TEXT ("on this platform\n")));
ACE_END_TEST;
return 0;
}
#endif/* ACE_HAS_DEV_POLL || ACE_HAS_EVENT_POLL */
echo 4096>max_fd试试。 系统默认handle是1024...，需要改下。
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