Primary interface for application message processing, as well as input and output message queueing. More...

#include <Task_Ex_T.h>

Inheritance diagram for ACE_Task_Ex< ACE_SYNCH_DECL, ACE_MESSAGE_TYPE, TIME_POLICY >:

Collaboration diagram for ACE_Task_Ex< ACE_SYNCH_DECL, ACE_MESSAGE_TYPE, TIME_POLICY >:

Public Types
typedef ACE_Message_Queue_Ex < ACE_MESSAGE_TYPE, ACE_SYNCH_USE, TIME_POLICY >	MESSAGE_QUEUE_EX

Public Member Functions
	ACE_Task_Ex (ACE_Thread_Manager thr_mgr=0, MESSAGE_QUEUE_EX mq=0)

virtual	~ACE_Task_Ex (void)
	Destructor.

MESSAGE_QUEUE_EX *	msg_queue (void)
	Gets the message queue associated with this task.

void	msg_queue (MESSAGE_QUEUE_EX *)
	Sets the message queue associated with this task.

int	putq (ACE_MESSAGE_TYPE , ACE_Time_Value timeout=0)

int	getq (ACE_MESSAGE_TYPE &mb, ACE_Time_Value timeout=0)

int	ungetq (ACE_MESSAGE_TYPE , ACE_Time_Value timeout=0)

int	reply (ACE_MESSAGE_TYPE , ACE_Time_Value timeout=0)

int	put_next (ACE_MESSAGE_TYPE msg, ACE_Time_Value timeout=0)

const ACE_TCHAR *	name (void) const

ACE_Task< ACE_SYNCH_USE, TIME_POLICY > *	next (void)
	Get next Task pointer.

void	next (ACE_Task< ACE_SYNCH_USE, TIME_POLICY > *)
	Set next Task pointer.

ACE_Task< ACE_SYNCH_USE, TIME_POLICY > *	sibling (void)
	Alwasy return 0.

ACE_Module< ACE_SYNCH_USE, TIME_POLICY > *	module (void) const
	Return the Task's Module if there is one, else returns 0.

int	flush (u_long flag=ACE_Task_Flags::ACE_FLUSHALL)

void	water_marks (ACE_IO_Cntl_Msg::ACE_IO_Cntl_Cmds, size_t)
	Manipulate watermarks.

void	dump (void) const
	Dump the state of an object.

Public Member Functions inherited from ACE_Task_Base
	ACE_Task_Base (ACE_Thread_Manager *=0)
	Constructor.

virtual	~ACE_Task_Base (void)
	Destructor.

virtual int	open (void *args=0)
	Default ACE_Task open routine.

virtual int	close (u_long flags=0)
	Default ACE_Task close routine.

virtual int	module_closed (void)

virtual int	put (ACE_Message_Block , ACE_Time_Value =0)
	Default ACE_Task put routine.

virtual int	svc (void)
	Run by a daemon thread to handle deferred processing.

virtual int	activate (long flags=THR_NEW_LWP\|THR_JOINABLE\|THR_INHERIT_SCHED, int n_threads=1, int force_active=0, long priority=ACE_DEFAULT_THREAD_PRIORITY, int grp_id=-1, ACE_Task_Base task=0, ACE_hthread_t thread_handles[]=0, void stack[]=0, size_t stack_size[]=0, ACE_thread_t thread_ids[]=0, const char *thr_name[]=0)

virtual int	wait (void)
	Wait for all threads running in a task to exit.

virtual int	suspend (void)
	Suspend a task.

virtual int	resume (void)
	Resume a suspended task.

int	grp_id (void) const
	Get the current group id.

void	grp_id (int)
	Set the current group id.

ACE_Thread_Manager *	thr_mgr (void) const
	Get the thread manager associated with this Task.

void	thr_mgr (ACE_Thread_Manager *)
	Set the thread manager associated with this Task.

int	is_reader (void) const
	True if queue is a reader, else false.

int	is_writer (void) const
	True if queue is a writer, else false.

size_t	thr_count (void) const

ACE_thread_t	last_thread (void) const

Public Member Functions inherited from ACE_Service_Object
	ACE_Service_Object (ACE_Reactor *=0)
	Constructor.

virtual	~ACE_Service_Object (void)
	Destructor.

Public Member Functions inherited from ACE_Event_Handler
virtual	~ACE_Event_Handler (void)
	Destructor is virtual to enable proper cleanup.

virtual ACE_HANDLE	get_handle (void) const
	Get the I/O handle.

virtual void	set_handle (ACE_HANDLE)
	Set the I/O handle.

virtual int	priority (void) const

virtual void	priority (int priority)
	Set the priority of the Event_Handler.

virtual int	handle_input (ACE_HANDLE fd=ACE_INVALID_HANDLE)
	Called when input events occur (e.g., connection or data).

virtual int	handle_output (ACE_HANDLE fd=ACE_INVALID_HANDLE)

virtual int	handle_exception (ACE_HANDLE fd=ACE_INVALID_HANDLE)
	Called when an exceptional events occur (e.g., SIGURG).

virtual int	handle_timeout (const ACE_Time_Value &current_time, const void *act=0)

virtual int	handle_exit (ACE_Process *)
	Called when a process exits.

virtual int	handle_close (ACE_HANDLE handle, ACE_Reactor_Mask close_mask)

virtual int	handle_signal (int signum, siginfo_t =0, ucontext_t =0)

virtual int	resume_handler (void)

virtual int	handle_qos (ACE_HANDLE=ACE_INVALID_HANDLE)

virtual int	handle_group_qos (ACE_HANDLE=ACE_INVALID_HANDLE)

virtual void	reactor (ACE_Reactor *reactor)
	Set the event demultiplexors.

virtual ACE_Reactor *	reactor (void) const
	Get the event demultiplexors.

virtual ACE_Reactor_Timer_Interface *	reactor_timer_interface (void) const
	Get only the reactor's timer related interface.

virtual Reference_Count	add_reference (void)
	Increment reference count on the handler.

virtual Reference_Count	remove_reference (void)
	Decrement reference count on the handler.

Reference_Counting_Policy &	reference_counting_policy (void)
	Current Reference_Counting_Policy.

Public Member Functions inherited from ACE_Shared_Object
	ACE_Shared_Object (void)
	Constructor.

virtual	~ACE_Shared_Object (void)
	Destructor.

virtual int	init (int argc, ACE_TCHAR *argv[])
	Initializes object when dynamic linking occurs.

virtual int	fini (void)
	Terminates object when dynamic unlinking occurs.

virtual int	info (ACE_TCHAR **info_string, size_t length=0) const
	Returns information on a service object.

Public Attributes
MESSAGE_QUEUE_EX *	msg_queue_
	Queue of messages on the ACE_Task..

bool	delete_msg_queue_
	true if should delete Message_Queue, false otherwise.

ACE_Module< ACE_SYNCH_USE, TIME_POLICY > *	mod_
	Back-pointer to the enclosing module.

ACE_Task< ACE_SYNCH_USE, TIME_POLICY > *	next_
	Pointer to adjacent ACE_Task.

	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks.

Friends
class	ACE_Module< ACE_SYNCH_USE, TIME_POLICY >

class	ACE_Module_Type

Additional Inherited Members
Static Public Member Functions inherited from ACE_Task_Base
static ACE_THR_FUNC_RETURN	svc_run (void *)
	Routine that runs the service routine as a daemon thread.

static void	cleanup (void object, void params)

Protected Types inherited from ACE_Event_Handler
typedef ACE_Atomic_Op < ACE_SYNCH_MUTEX, Reference_Count >	Atomic_Reference_Count
	Typedef for implementation of reference counting.

Protected Member Functions inherited from ACE_Event_Handler
	ACE_Event_Handler (ACE_Reactor *=0, int priority=ACE_Event_Handler::LO_PRIORITY)
	Force ACE_Event_Handler to be an abstract base class.

Protected Attributes inherited from ACE_Task_Base
size_t	thr_count_

ACE_Thread_Manager *	thr_mgr_
	Multi-threading manager.

u_long	flags_
	ACE_Task flags.

int	grp_id_
	This maintains the group id of the Task.

ACE_thread_t	last_thread_id_
	Holds the thread ID of the last thread to exit svc() in this object.

Private Member Functions inherited from ACE_Copy_Disabled
	ACE_Copy_Disabled (void)
	Default constructor.

Detailed Description

template<ACE_SYNCH_DECL, class ACE_MESSAGE_TYPE, class TIME_POLICY = ACE_System_Time_Policy>
class ACE_Task_Ex< ACE_SYNCH_DECL, ACE_MESSAGE_TYPE, TIME_POLICY >

Primary interface for application message processing, as well as input and output message queueing.

Unlike ACE_Task, these class doesn't have the ability to be a part of a Stream chain. I.e. You cannot (yet) chain modules based on ACE_Task_Ex.

Todo:: : We can merge ACE_Task and ACE_Task_Ex to be one class. something like that: template <ACE_SYNCH_DECL, ACE_MESSAGE_TYPE = ACE_Message_Block> class ACE_Task : public ACE_Task_Base { // use here the code from ACE_Task_Ex using ACE_Message_Queue_Ex };

Now specialized version of ACE_Task with ACE_Message_Block as its ACE_MESSAGE_TYPE...

template <ACE_SYNCH_DECL> class ACE_Task <ACE_SYNCH_USE, ACE_Message_Block> : public ACE_Task_Base { // put here the good old ACE_Task code };

When User (and legacy code) write ACE_Task<ACE_MT_SYNCH>, specialized ACE_Task code is in action.