/usr/include/ace/Proactor_Impl.h is in libace-dev 6.0.1-3.
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//=============================================================================
/**
* @file Proactor_Impl.h
*
* $Id: Proactor_Impl.h 80826 2008-03-04 14:51:23Z wotte $
*
* @author Alexander Babu Arulanthu <alex@cs.wustl.edu>
* @author Alexander Libman <alibman@ihug.com.au>
*/
//=============================================================================
#ifndef ACE_PROACTOR_IMPL_H
#define ACE_PROACTOR_IMPL_H
#include /**/ "ace/pre.h"
#include /**/ "ace/config-all.h"
#if defined (ACE_HAS_WIN32_OVERLAPPED_IO) || defined (ACE_HAS_AIO_CALLS)
// This only works on standard Win32 platforms and on Unix platforms supporting
// aio calls.
#include "ace/Asynch_IO.h"
#include "ace/Reactor.h"
#include "ace/Countdown_Time.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_Proactor_Impl
*
* @brief A manager for asynchronous event demultiplexing. This class
* is the base class for all the concrete implementation
* classes.
*
* See the Proactor pattern description at
* http://www.cs.wustl.edu/~schmidt/proactor.ps.gz for more
* details.
*/
class ACE_Export ACE_Proactor_Impl : public ACE_Event_Handler
{
public:
/// Virtual destruction.
virtual ~ACE_Proactor_Impl (void);
/// Close the IO completion port.
virtual int close (void) = 0;
/// This method adds the @a handle to the I/O completion port. This
/// function is a no-op function for Unix systems.
virtual int register_handle (ACE_HANDLE handle,
const void *completion_key) = 0;
/**
* 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) = 0;
/**
* Block indefinitely until at least one event is dispatched.
* Dispatch a single set of events. If <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) = 0;
/// Add wakeup dispatch threads (reinit).
virtual int wake_up_dispatch_threads (void) = 0;
/// Close all dispatch threads.
virtual int close_dispatch_threads (int wait) = 0;
/// Get number of thread used as a parameter to CreatIoCompletionPort.
virtual size_t number_of_threads (void) const = 0;
/// Set number of thread used as a parameter to CreatIoCompletionPort.
virtual void number_of_threads (size_t threads) = 0;
/// Get the event handle.
virtual ACE_HANDLE get_handle (void) const = 0;
//
// = Factory methods for the operations
//
// Note that the user does not have to use or know about these
// methods.
/// Create the correct implementation class for doing Asynch_Read_Stream.
virtual ACE_Asynch_Read_Stream_Impl *create_asynch_read_stream (void) = 0;
/// Create the correct implementation class for doing Asynch_Write_Stream.
virtual ACE_Asynch_Write_Stream_Impl *create_asynch_write_stream (void) = 0;
/// Create the correct implementation class for doing Asynch_Read_File.
virtual ACE_Asynch_Read_File_Impl *create_asynch_read_file (void) = 0;
/// Create the correct implementation class for doing Asynch_Write_File.
virtual ACE_Asynch_Write_File_Impl *create_asynch_write_file (void) = 0;
/// Create the correct implementation class for doing Asynch_Accept.
virtual ACE_Asynch_Accept_Impl *create_asynch_accept (void) = 0;
/// Create the correct implementation class for doing Asynch_Connect.
virtual ACE_Asynch_Connect_Impl *create_asynch_connect (void) = 0;
/// Create the correct implementation class for doing Asynch_Transmit_File.
virtual ACE_Asynch_Transmit_File_Impl *create_asynch_transmit_file (void) = 0;
/// Create the correct implementation class for doing
/// Asynch_Read_Dgram.
virtual ACE_Asynch_Read_Dgram_Impl *create_asynch_read_dgram (void) = 0;
/// Create the correct implementation class for doing
/// Asynch_Write_Dgram.
virtual ACE_Asynch_Write_Dgram_Impl *create_asynch_write_dgram (void) = 0;
//
// = Factory methods for the results
//
// Note that the user does not have to use or know about these
// methods unless they want to "fake" results.
/// Create the correct implementation class for ACE_Asynch_Read_Stream::Result class.
virtual ACE_Asynch_Read_Stream_Result_Impl *
create_asynch_read_stream_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE handle,
ACE_Message_Block &message_block,
size_t bytes_to_read,
const void* act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Write_Stream::Result.
virtual ACE_Asynch_Write_Stream_Result_Impl *
create_asynch_write_stream_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE handle,
ACE_Message_Block &message_block,
size_t bytes_to_write,
const void* act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Read_File::Result.
virtual ACE_Asynch_Read_File_Result_Impl *
create_asynch_read_file_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE handle,
ACE_Message_Block &message_block,
size_t bytes_to_read,
const void* act,
u_long offset,
u_long offset_high,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Write_File::Result.
virtual ACE_Asynch_Write_File_Result_Impl *
create_asynch_write_file_result (const ACE_Handler::Proxy_Ptr &handler,
ACE_HANDLE handle,
ACE_Message_Block &message_block,
size_t bytes_to_write,
const void* act,
u_long offset,
u_long offset_high,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Read_Dgram::Result.
virtual ACE_Asynch_Read_Dgram_Result_Impl *
create_asynch_read_dgram_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE handle,
ACE_Message_Block *message_block,
size_t bytes_to_read,
int flags,
int protocol_family,
const void* act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Write_Dgram::Result.
virtual ACE_Asynch_Write_Dgram_Result_Impl *
create_asynch_write_dgram_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE handle,
ACE_Message_Block *message_block,
size_t bytes_to_write,
int flags,
const void* act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Accept::Result.
virtual ACE_Asynch_Accept_Result_Impl *
create_asynch_accept_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE listen_handle,
ACE_HANDLE accept_handle,
ACE_Message_Block &message_block,
size_t bytes_to_read,
const void* act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Connect::Result.
virtual ACE_Asynch_Connect_Result_Impl *
create_asynch_connect_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE connect_handle,
const void* act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/// Create the correct implementation class for ACE_Asynch_Transmit_File::Result.
virtual ACE_Asynch_Transmit_File_Result_Impl *
create_asynch_transmit_file_result (const ACE_Handler::Proxy_Ptr &handler_proxy,
ACE_HANDLE socket,
ACE_HANDLE file,
ACE_Asynch_Transmit_File::Header_And_Trailer *header_and_trailer,
size_t bytes_to_write,
u_long offset,
u_long offset_high,
size_t bytes_per_send,
u_long flags,
const void *act,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = ACE_SIGRTMIN) = 0;
/**
* Create the correct implementation object for the Timer
* result. POSIX_SIG_Proactor will create a Timer object with a
* meaningful signal number, if you leave the signal number as 0.
*/
virtual ACE_Asynch_Result_Impl *
create_asynch_timer (const ACE_Handler::Proxy_Ptr &handler_proxy,
const void *act,
const ACE_Time_Value &tv,
ACE_HANDLE event = ACE_INVALID_HANDLE,
int priority = 0,
int signal_number = 0) = 0;
/**
* Post @a how_many completions to the completion port so that all
* threads can wake up. This is used in conjunction with the
* <run_event_loop>.
*/
virtual int post_wakeup_completions (int how_many) = 0;
};
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_HAS_WIN32_OVERLAPPED_IO || ACE_HAS_AIO_CALLS */
#include /**/ "ace/post.h"
#endif /* ACE_PROACTOR_IMPL_H */
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