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ACE_WIN32_Asynch_Write_File Class Reference

This class is a factory for starting off asynchronous writes on a file. More...

#include <WIN32_Asynch_IO.h>

Inheritance diagram for ACE_WIN32_Asynch_Write_File

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Collaboration diagram for ACE_WIN32_Asynch_Write_File:

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List of all members.

Public Methods

 ACE_WIN32_Asynch_Write_File (ACE_WIN32_Proactor *win32_proactor)
 Constructor.

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)
virtual ~ACE_WIN32_Asynch_Write_File (void)
 Destrcutor.

int open (ACE_Handler &handler, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor)
int cancel (void)
ACE_Proactorproactor (void) const
 Return the underlying proactor.


Private Methods

int write (ACE_Message_Block &message_block, u_long bytes_to_write, const void *act, int priority, int signal_number = 0)

Detailed Description

This class is a factory for starting off asynchronous writes on a file.

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


Constructor & Destructor Documentation

ACE_WIN32_Asynch_Write_File::ACE_WIN32_Asynch_Write_File ( ACE_WIN32_Proactor * win32_proactor )
 

Constructor.

ACE_WIN32_Asynch_Write_File::~ACE_WIN32_Asynch_Write_File ( void ) [virtual]
 

Destrcutor.


Member Function Documentation

int ACE_WIN32_Asynch_Write_File::cancel ( void )
 

This cancels all pending accepts operations that were issued by the calling thread. The function does not cancel asynchronous operations issued by other threads.

Reimplemented from ACE_WIN32_Asynch_Write_Stream.

int ACE_WIN32_Asynch_Write_File::open ( ACE_Handler & handler,
ACE_HANDLE handle,
const void * completion_key,
ACE_Proactor * proactor )
 

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

Reimplemented from ACE_WIN32_Asynch_Write_Stream.

ACE_Proactor * ACE_WIN32_Asynch_Write_File::proactor ( void ) const
 

Return the underlying proactor.

Reimplemented from ACE_WIN32_Asynch_Write_Stream.

int ACE_WIN32_Asynch_Write_File::write ( ACE_Message_Block & message_block,
u_long bytes_to_write,
const void * act,
int priority,
int signal_number = 0 ) [private]
 

This method belongs to ACE_WIN32_Asynch_Write_Stream. It is here to avoid compiler warnings. This method is forwarded to the ACE_WIN32_Asynch_Write_Stream class.

Reimplemented from ACE_WIN32_Asynch_Write_Stream.

int ACE_WIN32_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 )
 

This starts off an asynchronous write. Upto <bytes_to_write> will be write and stored in the <message_block>. The write will start at <offset> from the beginning of the file.


The documentation for this class was generated from the following files:
Generated at Wed Nov 21 10:35:10 2001 for ACE by doxygen1.2.3 written by Dimitri van Heesch, © 1997-2000