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// $Id$
#include "ace/Select_Reactor_Base.h"
#include "ace/Reactor.h"
#include "ace/Thread.h"
#include "ace/Synch_T.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/SOCK_Connector.h"
#include "ace/Timer_Heap.h"
#include "ace/Log_Msg.h"
#if !defined (__ACE_INLINE__)
#include "ace/Select_Reactor_Base.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID(ace, Select_Reactor_Base, "$Id$")
// Perform GET, CLR, SET, and ADD operations on the Handle_Sets.
//
// GET = 1, Retrieve current value
// SET = 2, Set value of bits to new mask (changes the entire mask)
// ADD = 3, Bitwise "or" the value into the mask (only changes
// enabled bits)
// CLR = 4 Bitwise "and" the negation of the value out of the mask
// (only changes enabled bits)
//
// Returns the original mask. Must be called with locks held.
int
ACE_Select_Reactor_Impl::bit_ops (ACE_HANDLE handle,
ACE_Reactor_Mask mask,
ACE_Select_Reactor_Handle_Set &handle_set,
int ops)
{
ACE_TRACE ("ACE_Select_Reactor_Impl::bit_ops");
if (this->handler_rep_.handle_in_range (handle) == 0)
return -1;
#if !defined (ACE_WIN32)
ACE_Sig_Guard sb; // Block out all signals until method returns.
#endif /* ACE_WIN32 */
ACE_FDS_PTMF ptmf = &ACE_Handle_Set::set_bit;
u_long omask = ACE_Event_Handler::NULL_MASK;
// Find the old reactor masks. This automatically does the work of
// the GET_MASK operation.
if (handle_set.rd_mask_.is_set (handle))
ACE_SET_BITS (omask, ACE_Event_Handler::READ_MASK);
if (handle_set.wr_mask_.is_set (handle))
ACE_SET_BITS (omask, ACE_Event_Handler::WRITE_MASK);
if (handle_set.ex_mask_.is_set (handle))
ACE_SET_BITS (omask, ACE_Event_Handler::EXCEPT_MASK);
switch (ops)
{
case ACE_Reactor::GET_MASK:
// The work for this operation is done in all cases at the
// begining of the function.
break;
case ACE_Reactor::CLR_MASK:
ptmf = &ACE_Handle_Set::clr_bit;
/* FALLTHRU */
case ACE_Reactor::SET_MASK:
/* FALLTHRU */
case ACE_Reactor::ADD_MASK:
// The following code is rather subtle... Note that if we are
// doing a ACE_Reactor::SET_MASK then if the bit is not enabled
// in the mask we need to clear the bit from the ACE_Handle_Set.
// On the other hand, if we are doing a ACE_Reactor::CLR_MASK or
// a ACE_Reactor::ADD_MASK we just carry out the operations
// specified by the mask.
// READ, ACCEPT, and CONNECT flag will place the handle in the
// read set.
if (ACE_BIT_ENABLED (mask, ACE_Event_Handler::READ_MASK)
|| ACE_BIT_ENABLED (mask, ACE_Event_Handler::ACCEPT_MASK)
|| ACE_BIT_ENABLED (mask, ACE_Event_Handler::CONNECT_MASK))
{
(handle_set.rd_mask_.*ptmf) (handle);
}
else if (ops == ACE_Reactor::SET_MASK)
handle_set.rd_mask_.clr_bit (handle);
// WRITE and CONNECT flag will place the handle in the write set
if (ACE_BIT_ENABLED (mask,
ACE_Event_Handler::WRITE_MASK)
|| ACE_BIT_ENABLED (mask,
ACE_Event_Handler::CONNECT_MASK))
{
(handle_set.wr_mask_.*ptmf) (handle);
}
else if (ops == ACE_Reactor::SET_MASK)
handle_set.wr_mask_.clr_bit (handle);
// EXCEPT (and CONNECT on Win32) flag will place the handle in
// the except set.
if (ACE_BIT_ENABLED (mask, ACE_Event_Handler::EXCEPT_MASK)
#if defined (ACE_WIN32)
|| ACE_BIT_ENABLED (mask, ACE_Event_Handler::CONNECT_MASK)
#endif /* ACE_WIN32 */
)
{
(handle_set.ex_mask_.*ptmf) (handle);
}
else if (ops == ACE_Reactor::SET_MASK)
handle_set.ex_mask_.clr_bit (handle);
break;
default:
return -1;
}
return omask;
}
int
ACE_Select_Reactor_Impl::resumable_handler (void)
{
// The select reactor has no handlers that can be resumed by the
// application. So return 0;
return 0;
}
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