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ACE_POSIX_Asynch_Accept Class Reference

For the POSIX implementation this class is common for all Proactors (AIOCB/SIG/SUN) More...

#include <POSIX_Asynch_IO.h>

Inheritance diagram for ACE_POSIX_Asynch_Accept:
Inheritance graph
Collaboration diagram for ACE_POSIX_Asynch_Accept:
Collaboration graph

Public Member Functions

 ACE_POSIX_Asynch_Accept (ACE_POSIX_Proactor *posix_proactor)
virtual ~ACE_POSIX_Asynch_Accept (void)
int open (const ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor=0)
int accept (ACE_Message_Block &message_block, size_t bytes_to_read, ACE_HANDLE accept_handle, const void *act, int priority, int signal_number=0, int addr_family=AF_INET)
int cancel (void)
int close ()
ACE_HANDLE get_handle (void) const
 virtual from ACE_Event_Handler
void set_handle (ACE_HANDLE handle)
 virtual from ACE_Event_Handler
int handle_input (ACE_HANDLE handle)
int handle_close (ACE_HANDLE handle, ACE_Reactor_Mask close_mask)
 virtual from ACE_Event_Handler
- Public Member Functions inherited from ACE_Asynch_Accept_Impl
virtual ~ACE_Asynch_Accept_Impl (void)
- Public Member Functions inherited from ACE_Asynch_Operation_Impl
virtual ~ACE_Asynch_Operation_Impl (void)
- Public Member Functions inherited from ACE_POSIX_Asynch_Operation
ACE_Proactorproactor (void) const
 Return the underlying proactor.
ACE_POSIX_Proactorposix_proactor (void) const
 Return the underlying Proactor implementation.
- Public Member Functions inherited from ACE_Event_Handler
virtual ~ACE_Event_Handler (void)
 Destructor is virtual to enable proper cleanup.
virtual int priority (void) const
virtual void priority (int priority)
 Set the priority of the Event_Handler.
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_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_Reactorreactor (void) const
 Get the event demultiplexors.
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_Policyreference_counting_policy (void)
 Current Reference_Counting_Policy.

Private Member Functions

int cancel_uncompleted (int flg_notify)

Private Attributes

bool flg_open_
< ACE_POSIX_Asynch_Accept_Result * > 

Additional Inherited Members

- Public Types inherited from ACE_Event_Handler
enum  {
  LO_PRIORITY = 0, HI_PRIORITY = 10, NULL_MASK = 0, READ_MASK = (1 << 0),
  WRITE_MASK = (1 << 1), EXCEPT_MASK = (1 << 2), ACCEPT_MASK = (1 << 3), CONNECT_MASK = (1 << 4),
  TIMER_MASK = (1 << 5), QOS_MASK = (1 << 6), GROUP_QOS_MASK = (1 << 7), SIGNAL_MASK = (1 << 8),
typedef long Reference_Count
 Reference count type.
- Static Public Member Functions inherited from ACE_Event_Handler
static ACE_THR_FUNC_RETURN read_adapter (void *event_handler)
static int register_stdin_handler (ACE_Event_Handler *eh, ACE_Reactor *reactor, ACE_Thread_Manager *thr_mgr, int flags=THR_DETACHED)
static int remove_stdin_handler (ACE_Reactor *reactor, ACE_Thread_Manager *thr_mgr)
 Performs the inverse of the register_stdin_handler() method.
- Protected Types inherited from ACE_Event_Handler
typedef ACE_Atomic_Op
 Typedef for implementation of reference counting.
- Protected Member Functions inherited from ACE_Asynch_Accept_Impl
 ACE_Asynch_Accept_Impl (void)
 Do-nothing constructor.
- Protected Member Functions inherited from ACE_POSIX_Asynch_Operation
 ACE_POSIX_Asynch_Operation (ACE_POSIX_Proactor *posix_proactor)
virtual ~ACE_POSIX_Asynch_Operation (void)
- 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_POSIX_Asynch_Operation
 Proactor that this Asynch IO will be registered with.
ACE_Handler::Proxy_Ptr handler_proxy_
 Handler that will receive the callback.
ACE_HANDLE handle_
 I/O handle used for reading.
- Protected Attributes inherited from ACE_Event_Handler
Atomic_Reference_Count reference_count_
 Reference count.

Detailed Description

For the POSIX implementation this class is common for all Proactors (AIOCB/SIG/SUN)

Constructor & Destructor Documentation

ACE_POSIX_Asynch_Accept::ACE_POSIX_Asynch_Accept ( ACE_POSIX_Proactor posix_proactor)


ACE_POSIX_Asynch_Accept::~ACE_POSIX_Asynch_Accept ( void  )


Member Function Documentation

int ACE_POSIX_Asynch_Accept::accept ( ACE_Message_Block message_block,
size_t  bytes_to_read,
ACE_HANDLE  accept_handle,
const void *  act,
int  priority,
int  signal_number = 0,
int  addr_family = AF_INET 

This starts off an asynchronous accept. The asynchronous accept call also allows any initial data to be returned to the handler. Upto bytes_to_read will be read and stored in the message_block. The <accept_handle> will be used for the <accept> call. If (<accept_handle> == INVALID_HANDLE), a new handle will be created.

message_block must be specified. This is because the address of the new connection is placed at the end of this buffer.

Implements ACE_Asynch_Accept_Impl.

int ACE_POSIX_Asynch_Accept::cancel ( void  )

Cancel all pending pseudo-asynchronus requests Behavior as usual AIO request

Reimplemented from ACE_POSIX_Asynch_Operation.

int ACE_POSIX_Asynch_Accept::cancel_uncompleted ( int  flg_notify)

flg_notify points whether or not we should send notification about canceled accepts Parameter flg_notify can be 0 - don't send notifications about canceled accepts 1 - notify user about canceled accepts according POSIX standards we should receive notifications on canceled AIO requests

int ACE_POSIX_Asynch_Accept::close ( void  )

Close performs cancellation of all pending requests and closure the listen handle

ACE_HANDLE ACE_POSIX_Asynch_Accept::get_handle ( void  ) const

virtual from ACE_Event_Handler

Reimplemented from ACE_Event_Handler.

int ACE_POSIX_Asynch_Accept::handle_close ( ACE_HANDLE  handle,
ACE_Reactor_Mask  close_mask 

virtual from ACE_Event_Handler

Reimplemented from ACE_Event_Handler.

int ACE_POSIX_Asynch_Accept::handle_input ( ACE_HANDLE  handle)

virtual from ACE_Event_Handler Called when accept event comes up on <listen_handle>

Reimplemented from ACE_Event_Handler.

int ACE_POSIX_Asynch_Accept::open ( const ACE_Handler::Proxy_Ptr handler_proxy,
ACE_HANDLE  handle,
const void *  completion_key,
ACE_Proactor proactor = 0 

This <open> belongs to ACE_POSIX_Asynch_Operation. We forward this call to that method. We have put this here to avoid the compiler warnings.

Reimplemented from ACE_POSIX_Asynch_Operation.

void ACE_POSIX_Asynch_Accept::set_handle ( ACE_HANDLE  handle)

virtual from ACE_Event_Handler

Reimplemented from ACE_Event_Handler.

Member Data Documentation

bool ACE_POSIX_Asynch_Accept::flg_open_

true - Accept is registered in ACE_Asynch_Pseudo_Task false - Accept is deregisted in ACE_Asynch_Pseudo_Task

ACE_SYNCH_MUTEX ACE_POSIX_Asynch_Accept::lock_

The lock to protect the result queue which is shared. The queue is updated by main thread in the register function call and through the auxillary thread in the deregister fun. So let us mutex it.

ACE_Unbounded_Queue<ACE_POSIX_Asynch_Accept_Result*> ACE_POSIX_Asynch_Accept::result_queue_

Queue of Result pointers that correspond to all the pending accept operations.

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