---

ACE_WIN32_Asynch_Write_File_Result Class Reference

This class provides implementation for ACE_Asynch_Write_File_Result for WIN32 platforms. More...

#include <WIN32_Asynch_IO.h>

Inheritance diagram for ACE_WIN32_Asynch_Write_File_Result:

[legend]Collaboration diagram for ACE_WIN32_Asynch_Write_File_Result:

[legend]List of all members.

Public Methods
size_t	bytes_transferred (void) const
	Number of bytes transferred by the operation.
const void *	act (void) const
	ACT associated with the operation.
int	success (void) const
	Did the operation succeed?
const void *	completion_key (void) const
u_long	error (void) const
	Error value if the operation fail.
ACE_HANDLE	event (void) const
	Event associated with the OVERLAPPED structure.
u_long	offset (void) const
	This really make sense only when doing file I/O.
u_long	offset_high (void) const
	Offset_high associated with the OVERLAPPED structure.
int	priority (void) const
int	signal_number (void) const
	No-op. Returns 0.
size_t	bytes_to_write (void) const
ACE_Message_Block &	message_block (void) const
	Message block that contains the data to be written.
ACE_HANDLE	handle (void) const
	I/O handle used for writing.
int	post_completion (ACE_Proactor_Impl *proactor)
	Post <this> to the Proactor's completion port.
Protected Methods
	ACE_WIN32_Asynch_Write_File_Result (ACE_Handler &handler, ACE_HANDLE handle, ACE_Message_Block &message_block, size_t bytes_to_write, const void *act, u_long offset, u_long offset_high, ACE_HANDLE event, int priority, int signal_number=0, int gather_enabled=0)
virtual void	complete (size_t bytes_transferred, int success, const void *completion_key, u_long error)
	ACE_Proactor will call this method when the write completes.
virtual	~ACE_WIN32_Asynch_Write_File_Result (void)
	Destructor.
Friends
class	ACE_WIN32_Asynch_Write_File
	Factory class will have special permission.
class	ACE_WIN32_Proactor
	Proactor class has special permission.

---

Detailed Description

This class provides implementation for ACE_Asynch_Write_File_Result for WIN32 platforms.

This class has all the information necessary for the <handler> to uniquiely identify the completion of the asynchronous write.

This class differs slightly from ACE_Asynch_Write_Stream::Result as it calls back <ACE_Handler::handle_write_file> on the <handler> instead of <ACE_Handler::handle_write_stream>. No additional state is required by this class as ACE_Asynch_Result can store the <offset>.

---

Constructor & Destructor Documentation

ACE_WIN32_Asynch_Write_File_Result::ACE_WIN32_Asynch_Write_File_Result (  ACE_Handler &    handler, ACE_HANDLE    handle, ACE_Message_Block &    message_block, size_t    bytes_to_write, const void *    act, u_long    offset, u_long    offset_high, ACE_HANDLE    event, int    priority, int    signal_number = 0, int    gather_enabled = 0 )  [protected]

Constructor is protected since creation is limited to ACE_Asynch_Write_File factory.

ACE_WIN32_Asynch_Write_File_Result::~ACE_WIN32_Asynch_Write_File_Result (  void    )  [protected, virtual]

Destructor.

---

Member Function Documentation

const void * ACE_WIN32_Asynch_Write_File_Result::act (  void    )  const [virtual]

ACT associated with the operation. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

size_t ACE_WIN32_Asynch_Write_File_Result::bytes_to_write (  void    )  const [virtual]

The number of bytes which were requested at the start of the asynchronous write. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

size_t ACE_WIN32_Asynch_Write_File_Result::bytes_transferred (  void    )  const [virtual]

Number of bytes transferred by the operation. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

void ACE_WIN32_Asynch_Write_File_Result::complete (  size_t    bytes_transferred, int    success, const void *    completion_key, u_long    error )  [protected, virtual]

ACE_Proactor will call this method when the write completes. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

const void * ACE_WIN32_Asynch_Write_File_Result::completion_key (  void    )  const [virtual]

This returns the ACT associated with the handle when it was registered with the I/O completion port. This ACT is not the same as the ACT associated with the asynchronous operation. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

u_long ACE_WIN32_Asynch_Write_File_Result::error (  void    )  const [virtual]

Error value if the operation fail. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

ACE_HANDLE ACE_WIN32_Asynch_Write_File_Result::event (  void    )  const [virtual]

Event associated with the OVERLAPPED structure. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

ACE_HANDLE ACE_WIN32_Asynch_Write_File_Result::handle (  void    )  const [virtual]

I/O handle used for writing. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

ACE_Message_Block & ACE_WIN32_Asynch_Write_File_Result::message_block (  void    )  const [virtual]

Message block that contains the data to be written. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

u_long ACE_WIN32_Asynch_Write_File_Result::offset (  void    )  const [virtual]

This really make sense only when doing file I/O. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

u_long ACE_WIN32_Asynch_Write_File_Result::offset_high (  void    )  const [virtual]

Offset_high associated with the OVERLAPPED structure. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

int ACE_WIN32_Asynch_Write_File_Result::post_completion (  ACE_Proactor_Impl *    proactor )  [virtual]

Post <this> to the Proactor's completion port. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

int ACE_WIN32_Asynch_Write_File_Result::priority (  void    )  const [virtual]

The priority of the asynchronous operation. Currently, this is not supported on Win32. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

int ACE_WIN32_Asynch_Write_File_Result::signal_number (  void    )  const [virtual]

No-op. Returns 0. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

int ACE_WIN32_Asynch_Write_File_Result::success (  void    )  const [virtual]

Did the operation succeed? Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

---

Friends And Related Function Documentation

friend class ACE_WIN32_Asynch_Write_File [friend]

Factory class will have special permission.

friend class ACE_WIN32_Proactor [friend]

Proactor class has special permission. Reimplemented from ACE_WIN32_Asynch_Write_Stream_Result.

---

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

• WIN32_Asynch_IO.h
• WIN32_Asynch_IO.cpp

---