ACE_Proactor Class Reference

A manager for asynchronous event demultiplexing. More...

#include <Proactor.h>

Collaboration diagram for ACE_Proactor:

Public Types
typedef int(*	PROACTOR_EVENT_HOOK) (ACE_Proactor *)

Public Member Functions
	ACE_Proactor (ACE_Proactor_Impl *implementation=0, bool delete_implementation=false, ACE_Proactor_Timer_Queue *tq=0)
	~ACE_Proactor (void)
	Destruction. More...
int	close (void)
	Close the associated ACE_Proactor_Impl implementation object. More...
int	proactor_run_event_loop (PROACTOR_EVENT_HOOK=0)
int	proactor_run_event_loop (ACE_Time_Value &tv, PROACTOR_EVENT_HOOK=0)
int	proactor_end_event_loop (void)
int	proactor_event_loop_done (void)
	Report if the ACE_Proactor event loop is finished. More...
int	proactor_reset_event_loop (void)
int	register_handle (ACE_HANDLE handle, const void *completion_key)
long	schedule_timer (ACE_Handler &handler, const void *act, const ACE_Time_Value &time)
long	schedule_repeating_timer (ACE_Handler &handler, const void *act, const ACE_Time_Value &interval)
long	schedule_timer (ACE_Handler &handler, const void *act, const ACE_Time_Value &time, const ACE_Time_Value &interval)
int	cancel_timer (ACE_Handler &handler, int dont_call_handle_close=1)
int	cancel_timer (long timer_id, const void **act=0, int dont_call_handle_close=1)
int	handle_events (ACE_Time_Value &wait_time)
int	handle_events (void)
int	wake_up_dispatch_threads (void)
	Add wakeup dispatch threads (reinit). More...
int	close_dispatch_threads (int wait)
	Close all dispatch threads. More...
size_t	number_of_threads (void) const
	Get number of thread used as a parameter to CreatIoCompletionPort. More...
void	number_of_threads (size_t threads)
	Set number of thread used as a parameter to CreatIoCompletionPort. More...
ACE_Proactor_Timer_Queue *	timer_queue (void) const
	Get timer queue. More...
void	timer_queue (ACE_Proactor_Timer_Queue *timer_queue)
	Set timer queue. More...
ACE_HANDLE	get_handle (void) const
ACE_Proactor_Impl *	implementation (void) const
	Get the implementation class. More...
ACE_Asynch_Read_Stream_Impl *	create_asynch_read_stream (void)
ACE_Asynch_Write_Stream_Impl *	create_asynch_write_stream (void)
ACE_Asynch_Read_File_Impl *	create_asynch_read_file (void)
ACE_Asynch_Write_File_Impl *	create_asynch_write_file (void)
ACE_Asynch_Accept_Impl *	create_asynch_accept (void)
	Create the correct implementation class for doing Asynch_Accept. More...
ACE_Asynch_Connect_Impl *	create_asynch_connect (void)
	Create the correct implementation class for doing Asynch_Connect. More...
ACE_Asynch_Transmit_File_Impl *	create_asynch_transmit_file (void)
ACE_Asynch_Read_Dgram_Impl *	create_asynch_read_dgram (void)
ACE_Asynch_Write_Dgram_Impl *	create_asynch_write_dgram (void)
ACE_Asynch_Read_Stream_Result_Impl *	create_asynch_read_stream_result (ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, ACE_Message_Block &message_block, u_long bytes_to_read, const void *act, ACE_HANDLE event=ACE_INVALID_HANDLE, int priority=0, int signal_number=ACE_SIGRTMIN)
ACE_Asynch_Write_Stream_Result_Impl *	create_asynch_write_stream_result (ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, ACE_Message_Block &message_block, u_long bytes_to_write, const void *act, ACE_HANDLE event=ACE_INVALID_HANDLE, int priority=0, int signal_number=ACE_SIGRTMIN)
ACE_Asynch_Read_File_Result_Impl *	create_asynch_read_file_result (ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, ACE_Message_Block &message_block, u_long 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)
ACE_Asynch_Write_File_Result_Impl *	create_asynch_write_file_result (ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, ACE_Message_Block &message_block, u_long 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)
ACE_Asynch_Read_Dgram_Result_Impl *	create_asynch_read_dgram_result (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)
ACE_Asynch_Write_Dgram_Result_Impl *	create_asynch_write_dgram_result (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)
ACE_Asynch_Accept_Result_Impl *	create_asynch_accept_result (ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE listen_handle, ACE_HANDLE accept_handle, ACE_Message_Block &message_block, u_long bytes_to_read, const void *act, ACE_HANDLE event=ACE_INVALID_HANDLE, int priority=0, int signal_number=ACE_SIGRTMIN)
	Create the correct implementation class for ACE_Asynch_Accept::Result. More...
ACE_Asynch_Connect_Result_Impl *	create_asynch_connect_result (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)
	Create the correct implementation class for ACE_Asynch_Connect::Result. More...
ACE_Asynch_Transmit_File_Result_Impl *	create_asynch_transmit_file_result (ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE socket, ACE_HANDLE file, ACE_Asynch_Transmit_File::Header_And_Trailer *header_and_trailer, u_long bytes_to_write, u_long offset, u_long offset_high, u_long bytes_per_send, u_long flags, const void *act, ACE_HANDLE event=ACE_INVALID_HANDLE, int priority=0, int signal_number=ACE_SIGRTMIN)
ACE_Asynch_Result_Impl *	create_asynch_timer (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=ACE_SIGRTMIN)

Static Public Member Functions
static ACE_Proactor *	instance (size_t threads=0)
static ACE_Proactor *	instance (ACE_Proactor *proactor, bool delete_proactor=false)
static void	close_singleton (void)
	Delete the dynamically allocated Singleton. More...
static void	cleanup (void *instance, void *arg)
static const ACE_TCHAR *	dll_name (void)
	Name of dll in which the singleton instance lives. More...
static const ACE_TCHAR *	name (void)
	Name of component–ACE_Proactor in this case. More...
static int	run_event_loop (void)
static int	run_event_loop (ACE_Time_Value &tv)
static int	end_event_loop (void)
static int	reset_event_loop (void)
static int	check_reconfiguration (ACE_Proactor *)
static int	event_loop_done (void)
	Report if the <ACE_Proactor::instance> event loop is finished. More...

Protected Member Functions
int	proactor_post_wakeup_completions (int how_many)
void	implementation (ACE_Proactor_Impl *implementation)
	Set the implementation class. More...

Static Protected Member Functions
static int	post_wakeup_completions (int how_many)

Protected Attributes
ACE_Proactor_Impl *	implementation_
bool	delete_implementation_
ACE_Proactor_Timer_Handler *	timer_handler_
	Handles timeout events. More...
ACE_Thread_Manager	thr_mgr_
	This will manage the thread in the Timer_Handler. More...
ACE_Proactor_Timer_Queue *	timer_queue_
	Timer Queue. More...
int	delete_timer_queue_
	Flag on whether to delete the timer queue. More...
sig_atomic_t	end_event_loop_
	Terminate the proactor event loop. More...
sig_atomic_t	event_loop_thread_count_
	Number of threads in the event loop. More...
ACE_SYNCH_MUTEX	mutex_
	Mutex to protect work with lists. More...

Static Protected Attributes
static ACE_Proactor *	proactor_ = 0
	Pointer to a process-wide ACE_Proactor. More...
static bool	delete_proactor_ = false
	Must delete the <proactor_> if true. More...

Private Types
typedef ACE_Timer_Queue_Iterator_T< ACE_Handler * >	TIMER_QUEUE_ITERATOR
typedef ACE_Timer_List_T< ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX >	TIMER_LIST
typedef ACE_Timer_List_Iterator_T< ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX >	TIMER_LIST_ITERATOR
typedef ACE_Timer_Heap_T< ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX >	TIMER_HEAP
typedef ACE_Timer_Heap_Iterator_T< ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX >	TIMER_HEAP_ITERATOR
typedef ACE_Timer_Wheel_T< ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX >	TIMER_WHEEL
typedef ACE_Timer_Wheel_Iterator_T< ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX >	TIMER_WHEEL_ITERATOR

Private Member Functions
	ACE_Proactor (const ACE_Proactor &)
	Deny access since member-wise won't work... More...
ACE_Proactor &	operator= (const ACE_Proactor &)

Friends
class	ACE_Proactor_Timer_Handler

Detailed Description

A manager for asynchronous event demultiplexing.

See the Proactor pattern description at http://www.cs.wustl.edu/~schmidt/proactor.ps.gz for more details.

Member Typedef Documentation

typedef int(* ACE_Proactor::PROACTOR_EVENT_HOOK) (ACE_Proactor *)

You can add a hook to various run_event methods and the hook will be called after handling every proactor event. If this function returns 0, proactor_run_event_loop will check for the return value of handle_events. If it is -1, the the proactor_run_event_loop will return (pre-maturely.)

typedef ACE_Timer_Heap_T<ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX> ACE_Proactor::TIMER_HEAP

private

typedef ACE_Timer_Heap_Iterator_T<ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX> ACE_Proactor::TIMER_HEAP_ITERATOR

private

typedef ACE_Timer_List_T<ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX> ACE_Proactor::TIMER_LIST

private

typedef ACE_Timer_List_Iterator_T<ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX> ACE_Proactor::TIMER_LIST_ITERATOR

private

typedef ACE_Timer_Queue_Iterator_T<ACE_Handler *> ACE_Proactor::TIMER_QUEUE_ITERATOR

private

typedef ACE_Timer_Wheel_T<ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX> ACE_Proactor::TIMER_WHEEL

private

typedef ACE_Timer_Wheel_Iterator_T<ACE_Handler *, ACE_Proactor_Handle_Timeout_Upcall, ACE_SYNCH_RECURSIVE_MUTEX> ACE_Proactor::TIMER_WHEEL_ITERATOR

private

Constructor & Destructor Documentation

ACE_Proactor::ACE_Proactor	(	ACE_Proactor_Impl *	implementation = 0,
		bool	delete_implementation = false,
		ACE_Proactor_Timer_Queue *	tq = 0
	)

Constructor. If implementation is 0, the correct implementation object will be created. delete_implementation flag determines whether the implementation object should be deleted by the Proactor or not. If tq is 0, a new TIMER_QUEUE is created.

ACE_Proactor::~ACE_Proactor

(

void

)

Destruction.

ACE_Proactor::ACE_Proactor ( const ACE_Proactor &  )

private

Deny access since member-wise won't work...

Member Function Documentation

int ACE_Proactor::cancel_timer	(	ACE_Handler &	handler,
		int	dont_call_handle_close = 1
	)

Cancel all timers associated with this handler. Returns number of timers cancelled.

int ACE_Proactor::cancel_timer	(	long	timer_id,
		const void **	act = 0,
		int	dont_call_handle_close = 1
	)

Cancel the single <ACE_Handler> that matches the timer_id value (which was returned from the <schedule> method). If act is non-NULL then it will be set to point to the ``magic cookie'' argument passed in when the <Handler> was registered. This makes it possible to free up the memory and avoid memory leaks. Returns 1 if cancellation succeeded and 0 if the timer_id wasn't found.

int ACE_Proactor::check_reconfiguration ( ACE_Proactor *  )

static

The singleton proactor is used by the ACE_Service_Config. Therefore, we must check for the reconfiguration request and handle it after handling an event.

static void ACE_Proactor::cleanup ( void *  instance, void *  arg  )

static

Cleanup method, used by the ACE_Object_Manager to destroy the singleton.

int ACE_Proactor::close

(

void

)

Close the associated ACE_Proactor_Impl implementation object.

If

• delete_implementation was specified to the open() method, the implementation object is also deleted.

int ACE_Proactor::close_dispatch_threads

(

int

wait

)

Close all dispatch threads.

void ACE_Proactor::close_singleton ( void  )

static

Delete the dynamically allocated Singleton.

ACE_Asynch_Accept_Impl * ACE_Proactor::create_asynch_accept

(

void

)

Create the correct implementation class for doing Asynch_Accept.

ACE_Asynch_Accept_Result_Impl * ACE_Proactor::create_asynch_accept_result	(	ACE_Handler::Proxy_Ptr &	handler_proxy,
		ACE_HANDLE	listen_handle,
		ACE_HANDLE	accept_handle,
		ACE_Message_Block &	message_block,
		u_long	bytes_to_read,
		const void *	act,
		ACE_HANDLE	event = ACE_INVALID_HANDLE,
		int	priority = 0,
		int	signal_number = ACE_SIGRTMIN
	)

Create the correct implementation class for ACE_Asynch_Accept::Result.

ACE_Asynch_Connect_Impl * ACE_Proactor::create_asynch_connect

(

void

)

Create the correct implementation class for doing Asynch_Connect.

ACE_Asynch_Connect_Result_Impl * ACE_Proactor::create_asynch_connect_result	(	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
	)

Create the correct implementation class for ACE_Asynch_Connect::Result.

ACE_Asynch_Read_Dgram_Impl * ACE_Proactor::create_asynch_read_dgram

(

void

)

Create the correct implementation class for doing Asynch_Read_Dgram.

ACE_Asynch_Read_Dgram_Result_Impl * ACE_Proactor::create_asynch_read_dgram_result	(	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
	)

Create the correct implementation class for ACE_Asynch_Read_Dgram::Result.

ACE_Asynch_Read_File_Impl * ACE_Proactor::create_asynch_read_file

(

void

)

Create the correct implementation class for doing Asynch_Read_File.

ACE_Asynch_Read_File_Result_Impl * ACE_Proactor::create_asynch_read_file_result	(	ACE_Handler::Proxy_Ptr &	handler_proxy,
		ACE_HANDLE	handle,
		ACE_Message_Block &	message_block,
		u_long	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
	)

Create the correct implementation class for ACE_Asynch_Read_File::Result.

ACE_Asynch_Read_Stream_Impl * ACE_Proactor::create_asynch_read_stream

(

void

)

Create the correct implementation class for doing Asynch_Read_Stream.

ACE_Asynch_Read_Stream_Result_Impl * ACE_Proactor::create_asynch_read_stream_result	(	ACE_Handler::Proxy_Ptr &	handler_proxy,
		ACE_HANDLE	handle,
		ACE_Message_Block &	message_block,
		u_long	bytes_to_read,
		const void *	act,
		ACE_HANDLE	event = ACE_INVALID_HANDLE,
		int	priority = 0,
		int	signal_number = ACE_SIGRTMIN
	)

Create the correct implementation class for ACE_Asynch_Read_Stream::Result class.

ACE_Asynch_Result_Impl * ACE_Proactor::create_asynch_timer	(	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 = ACE_SIGRTMIN
	)

Create a timer result object which can be used with the Timer mechanism of the Proactor. If signal_number is -1, <POSIX_SIG_Proactor> will create a Timer object with a meaningful signal number, choosing the largest signal number from the signal mask of the Proactor.

ACE_Asynch_Transmit_File_Impl * ACE_Proactor::create_asynch_transmit_file

(

void

)

Create the correct implementation class for doing Asynch_Transmit_File.

ACE_Asynch_Transmit_File_Result_Impl * ACE_Proactor::create_asynch_transmit_file_result	(	ACE_Handler::Proxy_Ptr &	handler_proxy,
		ACE_HANDLE	socket,
		ACE_HANDLE	file,
		ACE_Asynch_Transmit_File::Header_And_Trailer *	header_and_trailer,
		u_long	bytes_to_write,
		u_long	offset,
		u_long	offset_high,
		u_long	bytes_per_send,
		u_long	flags,
		const void *	act,
		ACE_HANDLE	event = ACE_INVALID_HANDLE,
		int	priority = 0,
		int	signal_number = ACE_SIGRTMIN
	)

Create the correct implementation class for ACE_Asynch_Transmit_File::Result.

ACE_Asynch_Write_Dgram_Impl * ACE_Proactor::create_asynch_write_dgram

(

void

)

Create the correct implementation class for doing Asynch_Write_Dgram.

ACE_Asynch_Write_Dgram_Result_Impl * ACE_Proactor::create_asynch_write_dgram_result	(	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
	)

Create the correct implementation class for ACE_Asynch_Write_Dgram::Result.

ACE_Asynch_Write_File_Impl * ACE_Proactor::create_asynch_write_file

(

void

)

Create the correct implementation class for doing Asynch_Write_File.

ACE_Asynch_Write_File_Result_Impl * ACE_Proactor::create_asynch_write_file_result	(	ACE_Handler::Proxy_Ptr &	handler_proxy,
		ACE_HANDLE	handle,
		ACE_Message_Block &	message_block,
		u_long	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
	)

Create the correct implementation class for ACE_Asynch_Write_File::Result.

ACE_Asynch_Write_Stream_Impl * ACE_Proactor::create_asynch_write_stream

(

void

)

Create the correct implementation class for doing Asynch_Write_Stream.

ACE_Asynch_Write_Stream_Result_Impl * ACE_Proactor::create_asynch_write_stream_result	(	ACE_Handler::Proxy_Ptr &	handler_proxy,
		ACE_HANDLE	handle,
		ACE_Message_Block &	message_block,
		u_long	bytes_to_write,
		const void *	act,
		ACE_HANDLE	event = ACE_INVALID_HANDLE,
		int	priority = 0,
		int	signal_number = ACE_SIGRTMIN
	)

Create the correct implementation class for ACE_Asynch_Write_Stream::Result.

const ACE_TCHAR * ACE_Proactor::dll_name ( void  )

static

Name of dll in which the singleton instance lives.

int ACE_Proactor::end_event_loop ( void  )

inlinestatic

Instruct the <ACE_Proactor::instance> to terminate its event loop. This method wakes up all the threads blocked on waiting for completions and end the event loop.

int ACE_Proactor::event_loop_done ( void  )

inlinestatic

Report if the <ACE_Proactor::instance> event loop is finished.

ACE_HANDLE ACE_Proactor::get_handle

(

void

)

const

Get the event handle. It is a no-op in POSIX platforms and it returns ACE_INVALID_HANDLE.

int ACE_Proactor::handle_events

(

ACE_Time_Value &

wait_time

)

Dispatch a single set of events, waiting up to a specified time limit if necessary.

Parameters

wait_time

the time to wait for an event to occur. This is a relative time. On successful return, the time is updated to reflect the amount of time spent waiting for event(s) to occur.

Returns

Returns 0 if no events occur before the wait_time expires. Returns 1 when a completion is dispatched. On error, returns -1 and sets errno accordingly.

int ACE_Proactor::handle_events

(

void

)

Block indefinitely until at least one event is dispatched.

Returns

Returns 1 when a completion is dispatched. On error, returns -1 and sets errno accordingly.

ACE_Proactor_Impl * ACE_Proactor::implementation

(

void

)

const

Get the implementation class.

void ACE_Proactor::implementation ( ACE_Proactor_Impl *  implementation )

protected

Set the implementation class.

ACE_Proactor * ACE_Proactor::instance ( size_t  threads = 0 )

static

Get pointer to a process-wide ACE_Proactor. threads should be part of another method.

ACE_Proactor * ACE_Proactor::instance ( ACE_Proactor *  proactor, bool  delete_proactor = false  )

static

Set pointer to a process-wide ACE_Proactor and return existing pointer.

const ACE_TCHAR * ACE_Proactor::name ( void  )

static

Name of component–ACE_Proactor in this case.

size_t ACE_Proactor::number_of_threads

(

void

)

const

Get number of thread used as a parameter to CreatIoCompletionPort.

void ACE_Proactor::number_of_threads

(

size_t

threads

)

Set number of thread used as a parameter to CreatIoCompletionPort.

ACE_Proactor& ACE_Proactor::operator= ( const ACE_Proactor &  )

private

int ACE_Proactor::post_wakeup_completions ( int  how_many )

inlinestaticprotected

Post <how_many> completions to the completion port so that all threads can wake up. This is used in conjunction with the <run_event_loop>.

int ACE_Proactor::proactor_end_event_loop

(

void

)

Instruct the ACE_Proactor to terminate its event loop and notifies the ACE_Proactor so that it can wake up and close down gracefully.

int ACE_Proactor::proactor_event_loop_done

(

void

)

Report if the ACE_Proactor event loop is finished.

int ACE_Proactor::proactor_post_wakeup_completions ( int  how_many )

protected

Post <how_many> completions to the completion port so that all threads can wake up. This is used in conjunction with the <proactor_run_event_loop>.

int ACE_Proactor::proactor_reset_event_loop

(

void

)

Resets the <ACE_Proactor::end_event_loop_> static so that the <run_event_loop> method can be restarted.

int ACE_Proactor::proactor_run_event_loop

(

PROACTOR_EVENT_HOOK

eh = 0

)

Run the event loop until the <ACE_Proactor::handle_events> method returns -1 or the <end_proactor_event_loop> method is invoked.

int ACE_Proactor::proactor_run_event_loop	(	ACE_Time_Value &	tv,
		PROACTOR_EVENT_HOOK	eh = 0
	)

Run the event loop until the <ACE_Proactor::handle_events> method returns -1, the <end_proactor_event_loop> method is invoked, or the ACE_Time_Value expires, in which case a 0 is returned.

int ACE_Proactor::register_handle	(	ACE_HANDLE	handle,
		const void *	completion_key
	)

This method adds the handle to the I/O completion port. This function is a no-op function for Unix systems and returns 0;

int ACE_Proactor::reset_event_loop ( void  )

inlinestatic

Resets the <ACE_Proactor::end_event_loop_> static so that the <run_event_loop> method can be restarted.

int ACE_Proactor::run_event_loop ( void  )

inlinestatic

Run the event loop until the <ACE_Proactor::handle_events> method returns -1 or the <end_event_loop> method is invoked.

int ACE_Proactor::run_event_loop ( ACE_Time_Value &  tv )

inlinestatic

Run the event loop until the <ACE_Proactor::handle_events> method returns -1, the <end_event_loop> method is invoked, or the ACE_Time_Value expires, in which case 0 is returned.

long ACE_Proactor::schedule_repeating_timer	(	ACE_Handler &	handler,
		const void *	act,
		const ACE_Time_Value &	interval
	)

long ACE_Proactor::schedule_timer	(	ACE_Handler &	handler,
		const void *	act,
		const ACE_Time_Value &	time
	)

Schedule a handler that will expire after <time>. If it expires then act is passed in as the value to the handler's <handle_timeout> callback method. This method returns a <timer_id>. This <timer_id> can be used to cancel a timer before it expires. The cancellation ensures that <timer_ids> are unique up to values of greater than 2 billion timers. As long as timers don't stay around longer than this there should be no problems with accidentally deleting the wrong timer. Returns -1 on failure (which is guaranteed never to be a valid <timer_id>).

long ACE_Proactor::schedule_timer	(	ACE_Handler &	handler,
		const void *	act,
		const ACE_Time_Value &	time,
		const ACE_Time_Value &	interval
	)

Same as above except interval it is used to reschedule the handler automatically. This combines the above two methods into one. Mostly for backward compatibility.

ACE_Proactor_Timer_Queue * ACE_Proactor::timer_queue

(

void

)

const

Get timer queue.

void ACE_Proactor::timer_queue

(

ACE_Proactor_Timer_Queue *

timer_queue

)

Set timer queue.

int ACE_Proactor::wake_up_dispatch_threads

(

void

)

Add wakeup dispatch threads (reinit).

Friends And Related Function Documentation

friend class ACE_Proactor_Timer_Handler

friend

Timer handler runs a thread and manages the timers, on behalf of the Proactor.

Member Data Documentation

bool ACE_Proactor::delete_implementation_

protected

Flag used to indicate whether we are responsible for cleaning up the implementation instance.

bool ACE_Proactor::delete_proactor_ = false

staticprotected

Must delete the <proactor_> if true.

Controls whether the Proactor is deleted when we shut down (we can only delete it safely if we created it!)

int ACE_Proactor::delete_timer_queue_

protected

Flag on whether to delete the timer queue.

sig_atomic_t ACE_Proactor::end_event_loop_

protected

Terminate the proactor event loop.

sig_atomic_t ACE_Proactor::event_loop_thread_count_

protected

Number of threads in the event loop.

ACE_Proactor_Impl* ACE_Proactor::implementation_

protected

Delegation/implementation class that all methods will be forwarded to.

ACE_SYNCH_MUTEX ACE_Proactor::mutex_

protected

Mutex to protect work with lists.

ACE_Proactor * ACE_Proactor::proactor_ = 0

staticprotected

Pointer to a process-wide ACE_Proactor.

Process-wide ACE_Proactor.

ACE_Thread_Manager ACE_Proactor::thr_mgr_

protected

This will manage the thread in the Timer_Handler.

ACE_Proactor_Timer_Handler* ACE_Proactor::timer_handler_

protected

Handles timeout events.

ACE_Proactor_Timer_Queue* ACE_Proactor::timer_queue_

protected

Timer Queue.

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The documentation for this class was generated from the following files:

• Proactor.h
• Proactor.cpp
• Proactor.inl