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// $Id$
#include "Event_Channel.h"
#include "Thr_Proxy_Handler.h"
#if defined (ACE_HAS_THREADS)
Thr_Consumer_Proxy::Thr_Consumer_Proxy (ACE_Event_Channel &ec,
const ACE_INET_Addr &remote_addr,
const ACE_INET_Addr &local_addr,
ACE_INT32 conn_id)
: Consumer_Proxy (ec, remote_addr, local_addr, conn_id)
{
}
// This method should be called only when the Consumer shuts down
// unexpectedly. This method marks the Proxy_Handler as having failed
// and deactivates the ACE_Message_Queue (to wake up the thread
// blocked on <dequeue_head> in svc()).
// Thr_Output_Handler::handle_close () will eventually try to
// reconnect...
int
Thr_Consumer_Proxy::handle_input (ACE_HANDLE h)
{
// Call down to the <Consumer_Proxy> to handle this first.
this->Consumer_Proxy::handle_input (h);
ACE_Service_Config::reactor ()->remove_handler
(h, ACE_Event_Handler::ALL_EVENTS_MASK | ACE_Event_Handler::DONT_CALL);
// Deactivate the queue while we try to get reconnected.
this->msg_queue ()->deactivate ();
return 0;
}
// Initialize the threaded Consumer_Proxy object and spawn a new
// thread.
int
Thr_Consumer_Proxy::open (void *)
{
// Turn off non-blocking I/O.
if (this->peer ().disable (ACE_NONBLOCK) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "enable"), -1);
// Call back to the <Event_Channel> to complete our initialization.
else if (this->event_channel_.complete_proxy_connection (this) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "complete_proxy_connection"), -1);
// Register ourselves to receive input events (which indicate that
// the Consumer has shut down unexpectedly).
else if (ACE_Service_Config::reactor ()->register_handler
(this, ACE_Event_Handler::READ_MASK) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "register_handler"), -1);
// Reactivate message queue. If it was active then this is the
// first time in and we need to spawn a thread, otherwise the queue
// was inactive due to some problem and we've already got a thread.
else if (this->msg_queue ()->activate () == ACE_Message_Queue<SYNCH_STRATEGY>::WAS_ACTIVE)
{
ACE_DEBUG ((LM_DEBUG, "(%t) spawning new thread\n"));
// Become an active object by spawning a new thread to transmit
// events to Consumers.
return this->activate (THR_NEW_LWP | THR_DETACHED);
}
else
{
ACE_DEBUG ((LM_DEBUG, "(%t) reusing existing thread\n"));
return 0;
}
}
// Queue up an event for transmission (must not block since
// Supplier_Proxys may be single-threaded).
int
Thr_Consumer_Proxy::put (ACE_Message_Block *mb, ACE_Time_Value *)
{
// Perform non-blocking enqueue.
return this->msg_queue ()->enqueue_tail
(mb, (ACE_Time_Value *) &ACE_Time_Value::zero);
}
// Transmit events to the peer (note simplification resulting from
// threads...)
int
Thr_Consumer_Proxy::svc (void)
{
for (;;)
{
ACE_DEBUG ((LM_DEBUG,
"(%t) connected! Thr_Consumer_Proxy's handle = %d\n",
this->peer ().get_handle ()));
// Since this method runs in its own thread it is OK to block on
// output.
for (ACE_Message_Block *mb = 0;
this->msg_queue ()->dequeue_head (mb) != -1;
)
{
if (this->send (mb) == -1)
ACE_ERROR ((LM_ERROR, "(%t) %p\n", "send failed"));
}
ACE_ASSERT (errno == ESHUTDOWN);
ACE_DEBUG ((LM_DEBUG,
"(%t) shutting down threaded Consumer_Proxy %d on handle %d\n",
this->id (), this->get_handle ()));
this->peer ().close ();
for (this->timeout (1);
// Default is to reconnect synchronously.
this->event_channel_.initiate_proxy_connection (this) == -1; )
{
ACE_Time_Value tv (this->timeout ());
ACE_ERROR ((LM_ERROR,
"(%t) reattempting connection, sec = %d\n",
tv.sec ()));
ACE_OS::sleep (tv);
}
}
return 0;
}
Thr_Supplier_Proxy::Thr_Supplier_Proxy (ACE_Event_Channel &ec,
const ACE_INET_Addr &remote_addr,
const ACE_INET_Addr &local_addr,
ACE_INT32 conn_id)
: Supplier_Proxy (ec, remote_addr, local_addr, conn_id)
{
}
int
Thr_Supplier_Proxy::open (void *)
{
// Turn off non-blocking I/O.
if (this->peer ().disable (ACE_NONBLOCK) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "enable"), -1);
// Call back to the <Event_Channel> to complete our initialization.
else if (this->event_channel_.complete_proxy_connection (this) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "(%t) %p\n", "complete_proxy_connection"), -1);
// Reactivate message queue. If it was active then this is the
// first time in and we need to spawn a thread, otherwise the queue
// was inactive due to some problem and we've already got a thread.
else if (this->msg_queue ()->activate () == ACE_Message_Queue<SYNCH_STRATEGY>::WAS_ACTIVE)
{
ACE_DEBUG ((LM_DEBUG, "(%t) spawning new thread\n"));
// Become an active object by spawning a new thread to transmit
// events to peers.
return this->activate (THR_NEW_LWP | THR_DETACHED);
}
else
{
ACE_DEBUG ((LM_DEBUG, "(%t) reusing existing thread\n"));
return 0;
}
}
// Receive events from a Peer in a separate thread (note reuse of
// existing code!).
int
Thr_Supplier_Proxy::svc (void)
{
for (;;)
{
ACE_DEBUG ((LM_DEBUG,
"(%t) connected! Thr_Supplier_Proxy's handle = %d\n",
this->peer ().get_handle ()));
// Since this method runs in its own thread and processes events
// for one connection it is OK to call down to the
// <Supplier_Proxy::handle_input> method, which blocks on input.
while (this->handle_input () != -1)
continue;
ACE_DEBUG ((LM_DEBUG,
"(%t) shutting down threaded Supplier_Proxy %d on handle %d\n",
this->id (), this->get_handle ()));
this->peer ().close ();
// Deactivate the queue while we try to get reconnected.
this->msg_queue ()->deactivate ();
for (this->timeout (1);
// Default is to reconnect synchronously.
this->event_channel_.initiate_proxy_connection (this) == -1; )
{
ACE_Time_Value tv (this->timeout ());
ACE_ERROR ((LM_ERROR,
"(%t) reattempting connection, sec = %d\n",
tv.sec ()));
ACE_OS::sleep (tv);
}
}
return 0;
}
#endif /* ACE_HAS_THREADS */
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