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// $Id$
#define ACE_BUILD_DLL
#include "ace/SUN_Proactor.h"
#if defined (ACE_HAS_AIO_CALLS) && defined (sun)
#include "ace/Task_T.h"
#include "ace/Log_Msg.h"
#include "ace/Object_Manager.h"
#if !defined (__ACE_INLINE__)
#include "ace/SUN_Proactor.i"
#endif /* __ACE_INLINE__ */
ACE_SUN_Proactor::ACE_SUN_Proactor (size_t max_aio_operations)
: ACE_POSIX_AIOCB_Proactor (max_aio_operations , 0)
{
// To provide correct virtual calls.
create_notify_manager ();
}
// Destructor.
ACE_SUN_Proactor::~ACE_SUN_Proactor (void)
{
// to provide correct virtual calls
delete_notify_manager ();
}
int
ACE_SUN_Proactor::handle_events (ACE_Time_Value &wait_time)
{
return this->handle_events (wait_time.msec ());
}
int
ACE_SUN_Proactor::handle_events (void)
{
return this->handle_events (ACE_INFINITE);
}
int
ACE_SUN_Proactor::handle_events (u_long milli_seconds)
{
aio_result_t *result = 0;
if (milli_seconds == ACE_INFINITE)
result = aiowait (0);
else
{
struct timeval timeout;
timeout.tv_sec = milli_seconds / 1000;
timeout.tv_usec = (milli_seconds - (timeout.tv_sec * 1000)) * 1000;
result = aiowait (&timeout);
}
if ((int) result == -1)
// Check errno for EINVAL,EAGAIN,EINTR ??
ACE_ERROR_RETURN ((LM_ERROR,
"%N:%l:(%P | %t)::%p\n",
"ACE_SUN_Proactor::handle_events:"
"aiowait failed"),
0);
if ((int) result == 0)
return 0; // timeout
int error_status = 0;
int return_status = 0;
ACE_POSIX_Asynch_Result *asynch_result =
find_completed_aio (result,
error_status,
return_status);
if (asynch_result == 0)
return 0;
// Call the application code.
this->application_specific_code (asynch_result,
return_status, // Bytes transferred.
1, // Success
0, // No completion key.
error_status); // Error
return 1;
}
ACE_POSIX_Asynch_Result *
ACE_SUN_Proactor::find_completed_aio (aio_result_t *result,
int &error_status,
int &return_status)
{
ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, mutex_, 0);
size_t ai;
error_status = -1;
return_status= 0;
// we call find_completed_aio always with result != 0
for (ai = 0; ai < aiocb_list_max_size_; ai++)
if (result == &aiocb_list_[ai]->aio_resultp)
break;
if (ai >= aiocb_list_max_size_) // not found
return 0;
error_status = result->aio_errno;
return_status= result->aio_return;
if (error_status == -1) // should never be
{
ACE_ERROR ((LM_ERROR,
"%N:%l:(%P | %t)::%p\n",
"ACE_SUN_Proactor::find_completed_aio:"
"<aio_errno> has failed\n"));
aiocb_list_[ai] = 0;
result_list_[ai] = 0;
aiocb_list_cur_size_--;
return 0;
}
if (error_status == EINPROGRESS) // should never be
return 0;
if (error_status == ECANCELED)
return_status = 0;
if (return_status == -1)
{
// was ACE_ERROR_RETURN
ACE_ERROR ((LM_ERROR,
"%N:%l:(%P | %t)::%p\n",
"ACE_SUN_Proactor::find_completed_aio:"
"<aio_return> failed\n"));
return_status = 0; // zero bytes transferred
}
ACE_POSIX_Asynch_Result *asynch_result = result_list_[ai];
aiocb_list_[ai] = 0;
result_list_[ai] = 0;
aiocb_list_cur_size_--;
return asynch_result;
}
int
ACE_SUN_Proactor::start_aio (ACE_POSIX_Asynch_Result *result,
int op)
{
ACE_TRACE ("ACE_SUN_Proactor::start_aio");
int ret_val;
const ACE_TCHAR *ptype;
// Start IO
switch (op)
{
case 0 :
ptype = "read";
ret_val = aioread (result->aio_fildes,
(char *) result->aio_buf,
result->aio_nbytes,
result->aio_offset,
SEEK_SET,
&result->aio_resultp);
break;
case 1 :
ptype = "write";
ret_val = aiowrite (result->aio_fildes,
(char *) result->aio_buf,
result->aio_nbytes,
result->aio_offset,
SEEK_SET,
&result->aio_resultp);
break;
default:
ptype = "?????";
ret_val = -1;
break;
}
if (ret_val == -1)
ACE_ERROR ((LM_ERROR,
"%N:%l:(%P | %t)::start_aio: aio%s %p\n",
ptype,
"queueing failed\n"));
return ret_val;
}
#endif /* ACE_HAS_AIO_CALLS && sun */
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