mirror of
https://github.com/mangosfour/server.git
synced 2025-12-12 01:37:00 +00:00
97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
// -*- C++ -*-
|
|
|
|
//=============================================================================
|
|
/**
|
|
* @file POSIX_CB_Proactor.h
|
|
*
|
|
* $Id: POSIX_CB_Proactor.h 80826 2008-03-04 14:51:23Z wotte $
|
|
*
|
|
* @author Alexander Libman <alibman@ihug.com.au>
|
|
*/
|
|
//=============================================================================
|
|
|
|
#ifndef ACE_POSIX_CB_PROACTOR_H
|
|
#define ACE_POSIX_CB_PROACTOR_H
|
|
|
|
#include /**/ "ace/config-all.h"
|
|
|
|
#if !defined (ACE_LACKS_PRAGMA_ONCE)
|
|
# pragma once
|
|
#endif /* ACE_LACKS_PRAGMA_ONCE */
|
|
|
|
#if defined (ACE_HAS_AIO_CALLS)
|
|
|
|
#include "ace/Synch_Traits.h"
|
|
#include "ace/Thread_Semaphore.h"
|
|
#include "ace/Null_Semaphore.h"
|
|
|
|
#include "ace/POSIX_Proactor.h"
|
|
|
|
|
|
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
|
|
|
|
/**
|
|
* @class ACE_POSIX_CB_Proactor
|
|
*
|
|
* @brief Implementation of Callback-based Proactor
|
|
* };
|
|
*/
|
|
class ACE_Export ACE_POSIX_CB_Proactor : public ACE_POSIX_AIOCB_Proactor
|
|
{
|
|
|
|
public:
|
|
virtual Proactor_Type get_impl_type (void);
|
|
|
|
/// Destructor.
|
|
virtual ~ACE_POSIX_CB_Proactor (void);
|
|
|
|
/// Constructor defines max number asynchronous operations that can
|
|
/// be started at the same time.
|
|
ACE_POSIX_CB_Proactor (size_t max_aio_operations = ACE_AIO_DEFAULT_SIZE);
|
|
|
|
// This only public so the "extern C" completion function can see it
|
|
// when needed.
|
|
static void aio_completion_func (sigval cb_data);
|
|
|
|
protected:
|
|
|
|
/**
|
|
* Dispatch a single set of events. If @a wait_time elapses before
|
|
* any events occur, return 0. Return 1 on success i.e., when a
|
|
* completion is dispatched, non-zero (-1) on errors and errno is
|
|
* set accordingly.
|
|
*/
|
|
virtual int handle_events (ACE_Time_Value &wait_time);
|
|
|
|
/**
|
|
* Block indefinitely until at least one event is dispatched.
|
|
* Dispatch a single set of events. If @a wait_time elapses before
|
|
* any events occur, return 0. Return 1 on success i.e., when a
|
|
* completion is dispatched, non-zero (-1) on errors and errno is
|
|
* set accordingly.
|
|
*/
|
|
virtual int handle_events (void);
|
|
|
|
/// Find free slot to store result and aiocb pointer
|
|
virtual ssize_t allocate_aio_slot (ACE_POSIX_Asynch_Result *result);
|
|
|
|
/// Notify queue of "post_completed" ACE_POSIX_Asynch_Results
|
|
/// called from post_completion method
|
|
virtual int notify_completion (int sig_num);
|
|
|
|
/**
|
|
* Dispatch a single set of events. If @a milli_seconds elapses
|
|
* before any events occur, return 0. Return 1 if a completion is
|
|
* dispatched. Return -1 on errors.
|
|
*/
|
|
int handle_events_i (u_long milli_seconds);
|
|
|
|
/// Semaphore variable to notify
|
|
/// used to wait the first AIO start
|
|
ACE_SYNCH_SEMAPHORE sema_;
|
|
};
|
|
|
|
ACE_END_VERSIONED_NAMESPACE_DECL
|
|
|
|
#endif /* ACE_HAS_AIO_CALLS */
|
|
#endif /* ACE_POSIX_CB_PROACTOR_H*/
|