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ACE_POSIX_Asynch_Write_File Class Reference

#include <POSIX_Asynch_IO.h>

Inheritance diagram for ACE_POSIX_Asynch_Write_File:

[legend]Collaboration diagram for ACE_POSIX_Asynch_Write_File:

[legend]List of all members.

Public Methods
	ACE_POSIX_Asynch_Write_File (ACE_POSIX_Proactor *posix_proactor)
	Constructor. More...
int	write (ACE_Message_Block &message_block, size_t bytes_to_write, u_long offset, u_long offset_high, const void *act, int priority, int signal_number=0)
virtual	~ACE_POSIX_Asynch_Write_File (void)
	Destructor. More...
Private Methods
int	write (ACE_Message_Block &message_block, size_t bytes_to_write, const void *act, int priority, int signal_number=0)

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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).

Definition at line 541 of file POSIX_Asynch_IO.h.

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Constructor & Destructor Documentation

ACE_POSIX_Asynch_Write_File::ACE_POSIX_Asynch_Write_File (  ACE_POSIX_Proactor *    posix_proactor )

Constructor. Definition at line 646 of file POSIX_Asynch_IO.cpp. : ACE_Asynch_Operation_Impl (), ACE_Asynch_Write_Stream_Impl (), ACE_Asynch_Write_File_Impl (), ACE_POSIX_Asynch_Write_Stream (posix_proactor) { }

ACE_POSIX_Asynch_Write_File::~ACE_POSIX_Asynch_Write_File (  void    )  [virtual]

Destructor. Definition at line 696 of file POSIX_Asynch_IO.cpp. { }

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Member Function Documentation

int ACE_POSIX_Asynch_Write_File::write (  ACE_Message_Block &    message_block, size_t    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. Implements ACE_Asynch_Write_File_Impl. Definition at line 701 of file POSIX_Asynch_IO.cpp. References ACE_POSIX_Asynch_Write_Stream::write. { return ACE_POSIX_Asynch_Write_Stream::write (message_block, bytes_to_write, act, priority, signal_number); }

int ACE_POSIX_Asynch_Write_File::write (  ACE_Message_Block &    message_block, size_t    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. Implements ACE_Asynch_Write_File_Impl. Definition at line 655 of file POSIX_Asynch_IO.cpp. References ACE_ERROR_RETURN, ACE_LIB_TEXT, ACE_NEW_RETURN, ACE_POSIX_Proactor::get_handle, ACE_Message_Block::length, LM_ERROR, ACE_POSIX_Asynch_Operation::posix_proactor, ACE_POSIX_Asynch_Operation::proactor, ACE_POSIX_Proactor::start_aio, and ACE_POSIX_Proactor::WRITE. { size_t len = message_block.length (); if (bytes_to_write > len) bytes_to_write = len; if (bytes_to_write == 0) ACE_ERROR_RETURN ((LM_ERROR, ACE_LIB_TEXT ("ACE_POSIX_Asynch_Write_File::write:") ACE_LIB_TEXT ("Attempt to write 0 bytes\n")), -1); ACE_POSIX_Asynch_Write_File_Result *result = 0; ACE_POSIX_Proactor *proactor = this->posix_proactor (); ACE_NEW_RETURN (result, ACE_POSIX_Asynch_Write_File_Result (*this->handler_, this->handle_, message_block, bytes_to_write, act, offset, offset_high, proactor->get_handle (), priority, signal_number), -1); int return_val = proactor->start_aio (result, ACE_POSIX_Proactor::WRITE); if (return_val == -1) delete result; return return_val; }

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

• POSIX_Asynch_IO.h
• POSIX_Asynch_IO.cpp

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