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ACE_POSIX_Asynch_Write_File Class Reference

This class provides concrete implementation for <ACE_Asynch_Write_File> for POSIX platforms where the completion strategy for Proactor is based on AIOCB (AIO Control Blocks). More...

#include <POSIX_Asynch_IO.h>

Inheritance diagram for ACE_POSIX_Asynch_Write_File:

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Collaboration diagram for ACE_POSIX_Asynch_Write_File:

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List of all members.

Public Methods

 ACE_POSIX_Asynch_Write_File (ACE_POSIX_AIOCB_Proactor *posix_aiocb_proactor)
 Constructor. More...

int write (ACE_Message_Block &message_block, u_long bytes_to_write, u_long offset, u_long offset_high, const void *act, int priority, int signal_number=0)
 This starts off an asynchronous write. More...

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

int open (ACE_Handler &handler, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor=0)
 Initializes the factory with information which will be used with each asynchronous call. More...

int cancel (void)
 Not implemented. Returns 0. More...

ACE_Proactorproactor (void) const
 Return the underlying proactor. More...


Private Methods

int write (ACE_Message_Block &message_block, u_long bytes_to_write, const void *act, int priority, int signal_number=0)
 This <write> belongs to ACE_POSIX_Asynch_Write_Stream. More...


Detailed Description

This class provides concrete implementation for <ACE_Asynch_Write_File> for POSIX platforms where the completion strategy for Proactor is based on AIOCB (AIO Control Blocks).


Constructor & Destructor Documentation

ACE_POSIX_Asynch_Write_File::ACE_POSIX_Asynch_Write_File ACE_POSIX_AIOCB_Proactor   posix_aiocb_proactor
 

Constructor.

ACE_POSIX_Asynch_Write_File::~ACE_POSIX_Asynch_Write_File void    [virtual]
 

Destructor.


Member Function Documentation

int ACE_POSIX_Asynch_Write_File::cancel void    [virtual]
 

Not implemented. Returns 0.

@

Reimplemented from ACE_POSIX_Asynch_Write_Stream.

int ACE_POSIX_Asynch_Write_File::open ACE_Handler   handler,
ACE_HANDLE    handle,
const void *    completion_key,
ACE_Proactor   proactor = 0
[virtual]
 

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_POSIX_Asynch_Write_Stream.

ACE_Proactor * ACE_POSIX_Asynch_Write_File::proactor void    const [virtual]
 

Return the underlying proactor.

Reimplemented from ACE_POSIX_Asynch_Write_Stream.

int ACE_POSIX_Asynch_Write_File::write ACE_Message_Block   message_block,
u_long    bytes_to_write,
const void *    act,
int    priority,
int    signal_number = 0
[private, virtual]
 

This <write> belongs to ACE_POSIX_Asynch_Write_Stream.

We have put this here to avoid compiler warnings. We forward this method call to the <ACE_POSIX_Asynch_Write_Stream::write> one.

Reimplemented from ACE_Asynch_Write_File_Impl.

int ACE_POSIX_Asynch_Write_File::write ACE_Message_Block   message_block,
u_long    bytes_to_write,
u_long    offset,
u_long    offset_high,
const void *    act,
int    priority,
int    signal_number = 0
[virtual]
 

This starts off an asynchronous write.

Upto <bytes_to_write> will be written and stored in the <message_block>. The write will start at <offset> from the beginning of the file.

Reimplemented from ACE_Asynch_Write_File_Impl.


The documentation for this class was generated from the following files:
Generated on Thu May 23 00:21:03 2002 for ACE by doxygen1.2.13.1 written by Dimitri van Heesch, © 1997-2001