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ACE_Asynch_Accept Class Reference

This class is a factory for starting off asynchronous accepts on a listen handle. This class forwards all methods to its implementation class. More...

#include <Asynch_IO.h>

Inheritance diagram for ACE_Asynch_Accept:

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Collaboration diagram for ACE_Asynch_Accept:

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List of all members.

Public Methods

 ACE_Asynch_Accept (void)
 A do nothing constructor. More...

virtual ~ACE_Asynch_Accept (void)
 Destructor. More...

int open (ACE_Handler &handler, ACE_HANDLE handle=ACE_INVALID_HANDLE, const void *completion_key=0, ACE_Proactor *proactor=0)
int accept (ACE_Message_Block &message_block, size_t bytes_to_read, ACE_HANDLE accept_handle=ACE_INVALID_HANDLE, const void *act=0, int priority=0, int signal_number=ACE_SIGRTMIN)
ACE_Asynch_Accept_Implimplementation (void) const
 Return the underlying implementation class. More...

Protected Methods

void implementation (ACE_Asynch_Accept_Impl *implementation)
 Set the implementation class. More...

Protected Attributes

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

Detailed Description

This class is a factory for starting off asynchronous accepts on a listen handle. This class forwards all methods to its implementation class.

Once <open> is called, multiple asynchronous <accept>s can started using this class. A ACE_Asynch_Accept::Result will be passed back to the <handler> when the asynchronous accept completes through the <ACE_Handler::handle_accept> callback.

Definition at line 778 of file Asynch_IO.h.

Constructor & Destructor Documentation

ACE_Asynch_Accept::ACE_Asynch_Accept void   

A do nothing constructor.

Definition at line 626 of file Asynch_IO.cpp.

References ACE_Asynch_Write_File::implementation_.

00627   : implementation_ (0)
00628 {
00629 }

ACE_Asynch_Accept::~ACE_Asynch_Accept void    [virtual]


Definition at line 631 of file Asynch_IO.cpp.

00632 {
00633 }

Member Function Documentation

int ACE_Asynch_Accept::accept ACE_Message_Block   message_block,
size_t    bytes_to_read,
const void *    act = 0,
int    priority = 0,
int    signal_number = ACE_SIGRTMIN

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. Priority of the operation is specified by <priority>. On POSIX4-Unix, this is supported. Works like <nice> in Unix. Negative values are not allowed. 0 means priority of the operation same as the process priority. 1 means priority of the operation is one less than process. And so forth. On Win32, this is a no-op.

<message_block> must be specified. This is because the address of the new connection is placed at the end of this buffer. <signal_number> is the POSIX4 real-time signal number to be used for the operation. <signal_number> ranges from ACE_SIGRTMIN to ACE_SIGRTMAX. This argument is a no-op on non-POSIX4 systems.

Definition at line 664 of file Asynch_IO.cpp.

References ACE_Asynch_Accept_Impl::accept, and implementation.

Referenced by ACE_Asynch_Acceptor::accept.

00670 {
00671   return this->implementation ()->accept (message_block,
00672                                           bytes_to_read,
00673                                           accept_handle,
00674                                           act,
00675                                           priority,
00676                                           signal_number);
00677 }

void ACE_Asynch_Accept::implementation ACE_Asynch_Accept_Impl   implementation [protected]

Set the implementation class.

Definition at line 686 of file Asynch_IO.cpp.

References ACE_Asynch_Operation::implementation, and implementation_.

00687 {
00688   this->implementation_ = implementation;
00689   // Set the implementation in the base class.
00690   ACE_Asynch_Operation::implementation (implementation);
00691 }

ACE_Asynch_Accept_Impl * ACE_Asynch_Accept::implementation void    const

Return the underlying implementation class.

Reimplemented from ACE_Asynch_Operation.

Definition at line 680 of file Asynch_IO.cpp.

Referenced by accept, open, and ACE_Asynch_Accept::Result::Result.

00681 {
00682   return this->implementation_;
00683 }

int ACE_Asynch_Accept::open ACE_Handler   handler,
const void *    completion_key = 0,
ACE_Proactor   proactor = 0

Initializes the factory with information which will be used with each asynchronous call. If (<handle> == ACE_INVALID_HANDLE), <ACE_Handler::handle> will be called on the <handler> to get the correct handle.

Reimplemented from ACE_Asynch_Operation.

Definition at line 636 of file Asynch_IO.cpp.

References ACE_Proactor::create_asynch_accept, ACE_Asynch_Operation::get_proactor, implementation, implementation_, and ACE_Asynch_Operation::open.

Referenced by ACE_Asynch_Acceptor::open, and ACE_Asynch_Acceptor::set_handle.

00640 {
00641   // Get a proactor for/from the user.
00642   proactor = this->get_proactor (proactor, handler);
00644   // Delete the old implementation.
00645   delete this->implementation_;
00646   this->implementation_ = 0;
00648   // Now let us get the implementation initialized.
00649   ACE_Asynch_Accept_Impl *implementation = proactor->create_asynch_accept ();
00650   if (implementation == 0)
00651     return -1;
00653   // Set the implementation class
00654   this->implementation (implementation);
00656   // Call the <open> method of the base class.
00657   return ACE_Asynch_Operation::open (handler,
00658                                      handle,
00659                                      completion_key,
00660                                      proactor);
00661 }

Member Data Documentation

ACE_Asynch_Accept_Impl* ACE_Asynch_Accept::implementation_ [protected]

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

Reimplemented from ACE_Asynch_Operation.

Definition at line 834 of file Asynch_IO.h.

Referenced by ACE_Asynch_Connect::ACE_Asynch_Connect, implementation, open, and ACE_Asynch_Accept::Result::Result.

The documentation for this class was generated from the following files:
Generated on Mon Jun 16 12:44:58 2003 for ACE by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002