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// $Id: Pipeline_Tasks.cpp 91671 2010-09-08 18:39:23Z johnnyw $
#include "JAWS/Jaws_IO.h"
#include "JAWS/Pipeline_Tasks.h"
#include "JAWS/Pipeline_Handler_T.h"
#include "JAWS/Data_Block.h"
#include "JAWS/IO_Handler.h"
#include "JAWS/Policy.h"
JAWS_Pipeline_Handler::JAWS_Pipeline_Handler (void)
: policy_ (0)
{
}
JAWS_Pipeline_Handler::~JAWS_Pipeline_Handler (void)
{
}
int
JAWS_Pipeline_Handler::put (ACE_Message_Block *mb, ACE_Time_Value *tv)
{
JAWS_Data_Block *db = dynamic_cast<JAWS_Data_Block *> (mb);
JAWS_IO_Handler *ioh = db->io_handler ();
// guarantee the handler remains for the duration of this call
ioh->acquire ();
int status = this->handle_put (db, tv);
if (status != -1 && status != 2)
{
JAWS_Pipeline_Handler *task = ioh->task ();
JAWS_Pipeline_Handler *next
= dynamic_cast<JAWS_Pipeline_Handler *> (task->next ());
ioh->task (next);
}
ioh->release ();
return status;
}
JAWS_Dispatch_Policy *
JAWS_Pipeline_Handler::policy (void)
{
return this->policy_;
}
void
JAWS_Pipeline_Handler::policy (JAWS_Dispatch_Policy *policy)
{
this->policy_ = policy;
}
int
JAWS_Pipeline_Accept_Task::put (ACE_Message_Block *mb, ACE_Time_Value *tv)
{
JAWS_Data_Block *db = dynamic_cast<JAWS_Data_Block *> (mb);
JAWS_Pipeline_Handler *task = db->task ();
JAWS_Pipeline_Handler *next
= dynamic_cast<JAWS_Pipeline_Handler *> (task->next ());
JAWS_IO_Handler *ioh = this->new_handler (db);
if (ioh == 0)
{
ACE_ERROR ((LM_ERROR, "%p\n", "JAWS_Pipeline_Accept_Task::put"));
return -1;
}
ioh->acquire ();
ioh->task (next);
db->io_handler (ioh);
int result = this->handle_put (ioh->message_block (), tv);
ioh->release ();
return result;
}
int
JAWS_Pipeline_Accept_Task::handle_put (JAWS_Data_Block *data,
ACE_Time_Value *)
{
int result = -1;
// JAWS_Data_Block should contain an INET_Addr and an IO
JAWS_IO_Handler *handler = data->io_handler ();
JAWS_Dispatch_Policy *policy = this->policy ();
if (policy == 0) policy = data->policy ();
// data->policy ()->update (handler);
JAWS_IO *io = policy->io ();
io->accept (handler);
// When accept returns, the resulting handle should be stored into
// the JAWS_DATA_BLOCK somewhere.
// Check the handler for status of the io call
switch (handler->status ())
{
case JAWS_IO_Handler::ACCEPT_OK:
{
ACE_DEBUG ((LM_DEBUG, "(%t) ACCEPT_OK\n"));
result = 0;
JAWS_TRACE ("JAWS_Pipeline_Accept_Task::handle_put ACCEPT_OK");
// Move on to next stage in pipeline
break;
}
case JAWS_IO_Handler::ACCEPT_ERROR:
{
ACE_DEBUG ((LM_DEBUG, "(%t) ACCEPT_ERROR\n"));
result = -1;
JAWS_TRACE ("JAWS_Pipeline_Accept_Task::handle_put ACCEPT_ERROR");
// Should recycle the thread
break;
}
default:
{
result = 1;
JAWS_TRACE ("JAWS_Pipeline_Accept_Task::handle_put ACCEPT_IDLE");
// Should mean that the IO is asynchronous, and the word isn't out
// yet.
break;
}
}
// In asynchronous and synchronous models, we can --
// have the io_handler set the new task in the data_block
// In asynchronous model, we can --
// insert a wait task into the task queue
ACE_DEBUG ((LM_DEBUG, "(%t) Returning %d\n", result));
return result;
}
JAWS_IO_Handler *
JAWS_Pipeline_Accept_Task::new_handler (JAWS_Data_Block *data)
{
// Create a new handler and message block
JAWS_Data_Block *ndb = new JAWS_Data_Block (*data);
if (ndb == 0)
{
JAWS_TRACE ("JAWS_Pipeline_Accept_Task::new_handler, failed DB");
return 0;
}
JAWS_Dispatch_Policy *policy =
(this->policy () == 0) ? data->policy () : this->policy ();
JAWS_IO_Handler_Factory *ioh_factory = policy->ioh_factory ();
JAWS_IO_Handler *nioh = ioh_factory->create_io_handler ();
if (nioh == 0)
{
delete ndb;
return 0;
}
ndb->io_handler (nioh);
nioh->task (data->task ());
nioh->message_block (ndb);
return nioh;
}
int
JAWS_Pipeline_Done_Task::put (ACE_Message_Block *mb, ACE_Time_Value *)
{
JAWS_TRACE ("JAWS_Pipeline_Done_Task::put");
JAWS_Data_Block *data = dynamic_cast<JAWS_Data_Block *> (mb);
JAWS_IO_Handler *handler = data->io_handler ();
JAWS_Dispatch_Policy *policy = this->policy ();
if (policy == 0) policy = data->policy ();
// JAWS_IO *io = policy->io ();
data->task (0);
data->io_handler (0);
if (handler)
handler->done ();
// hack, let Concurrency know we are done.
return -2;
}
int
JAWS_Pipeline_Done_Task::handle_put (JAWS_Data_Block *, ACE_Time_Value *)
{
return 0;
}
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