NAME
ACE_WIN32_Asynch_Write_File -
This class is a factory for starting off asynchronous writes on a file.
SYNOPSIS
class ACE_WIN32_Asynch_Write_File :
public virtual ACE_Asynch_Write_File_Impl,
public ACE_WIN32_Asynch_Write_Stream
{
public:
ACE_WIN32_Asynch_Write_File (ACE_WIN32_Proactor *win32_proactor);
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);
int open (
ACE_Handler &handler,
ACE_HANDLE handle,
const void *completion_key,
ACE_Proactor *proactor
);
int cancel (void);
ACE_Proactor* proactor (void) const;
private:
int write (
ACE_Message_Block &message_block,
u_long bytes_to_write,
const void *act,
int priority,
int signal_number = 0
);
};
DESCRIPTION
These classes only works on Win32 platforms.
The implementation of ACE_Asynch_Transmit_File and ACE_Asynch_Accept are only supported if ACE_HAS_WINSOCK2 is defined or you are on WinNT 4.0 or higher.
Methods belong to ACE_WIN32_Asynch_Operation base class. These
methods are defined here to avoid VC++ warnings. They route the call to the ACE_WIN32_Asynch_Operation base class.
int 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), ACE_Handler::handle will be called on the handler to get the correct handle.
int 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.
ACE_Proactor* proactor (void) const;
Return the underlying proactor.
AUTHOR
Irfan Pyarali ([email protected]), Tim Harrison ([email protected]) and Alexander Babu Arulanthu [email protected]
LIBRARY
ace