ACE_Asynch_Read_File_Impl Class Reference

Abstract base class for all the concrete implementation classes that provide different implementations for the ACE_Asynch_Read_File::Result. More...

#include <Asynch_IO_Impl.h>

Inheritance diagram for ACE_Asynch_Read_File_Impl:

Collaboration diagram for ACE_Asynch_Read_File_Impl:

Public Member Functions
virtual	~ACE_Asynch_Read_File_Impl (void)
virtual int	read (ACE_Message_Block &message_block, size_t bytes_to_read, u_long offset, u_long offset_high, const void *act, int priority, int signal_number)=0
virtual int	readv (ACE_Message_Block &message_block, size_t bytes_to_read, u_long offset, u_long offset_high, const void *act, int priority, int signal_number)=0
virtual int	read (ACE_Message_Block &message_block, size_t bytes_to_read, const void *act, int priority, int signal_number)=0
virtual int	readv (ACE_Message_Block &message_block, size_t bytes_to_read, const void *act, int priority, int signal_number)=0
Public Member Functions inherited from ACE_Asynch_Read_Stream_Impl
virtual	~ACE_Asynch_Read_Stream_Impl (void)
Public Member Functions inherited from ACE_Asynch_Operation_Impl
virtual	~ACE_Asynch_Operation_Impl (void)
virtual int	open (const ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor)=0
virtual int	cancel (void)=0
virtual ACE_Proactor *	proactor (void) const =0
	Return the underlying proactor. More...

Protected Member Functions
	ACE_Asynch_Read_File_Impl (void)
	Do-nothing constructor. More...
Protected Member Functions inherited from ACE_Asynch_Read_Stream_Impl
	ACE_Asynch_Read_Stream_Impl (void)
	Do-nothing constructor. More...
Protected Member Functions inherited from ACE_Asynch_Operation_Impl
	ACE_Asynch_Operation_Impl (void)
	Do-nothing constructor. More...

Detailed Description

Abstract base class for all the concrete implementation classes that provide different implementations for the ACE_Asynch_Read_File::Result.

Constructor & Destructor Documentation

ACE_Asynch_Read_File_Impl::~ACE_Asynch_Read_File_Impl ( void  )

virtual

ACE_Asynch_Read_File_Impl::ACE_Asynch_Read_File_Impl ( void  )

inlineprotected

Do-nothing constructor.

Member Function Documentation

virtual int ACE_Asynch_Read_File_Impl::read ( ACE_Message_Block &  message_block, size_t  bytes_to_read, u_long  offset, u_long  offset_high, const void *  act, int  priority, int  signal_number  )

pure virtual

This starts off an asynchronous read. Upto bytes_to_read will be read and stored in the message_block. The read will start at offset from the beginning of the file.

Implemented in ACE_POSIX_Asynch_Read_File.

virtual int ACE_Asynch_Read_File_Impl::read ( ACE_Message_Block &  message_block, size_t  bytes_to_read, const void *  act, int  priority, int  signal_number  )

pure virtual

This starts off an asynchronous read. Upto bytes_to_read will be read and stored in the message_block.

Implements ACE_Asynch_Read_Stream_Impl.

Implemented in ACE_POSIX_Asynch_Read_File.

virtual int ACE_Asynch_Read_File_Impl::readv ( ACE_Message_Block &  message_block, size_t  bytes_to_read, u_long  offset, u_long  offset_high, const void *  act, int  priority, int  signal_number  )

pure virtual

Same as above but with scatter support, through chaining of composite message blocks using the continuation field.

Note

In win32 Each data block payload must be at least the size of a system memory page and must be aligned on a system memory page size boundary

virtual int ACE_Asynch_Read_File_Impl::readv ( ACE_Message_Block &  message_block, size_t  bytes_to_read, const void *  act, int  priority, int  signal_number  )

pure virtual

Same as above but with scatter support, through chaining of composite message blocks using the continuation field.

Implements ACE_Asynch_Read_Stream_Impl.

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

• Asynch_IO_Impl.h
• Asynch_IO_Impl.cpp
• Asynch_IO_Impl.inl