ACE_POSIX_AIOCB_Asynch_Read_File(3)

NAME

ACE_POSIX_AIOCB_Asynch_Read_File -

This class is a factory for starting off asynchronous reads on a file. This class implements ACE_Asynch_Read_File for AIOCB (Asynchronous I/O Control Blocks) based implementation of Proactor.

SYNOPSIS

class ACE_POSIX_AIOCB_Asynch_Read_File : 
  public virtual ACE_Asynch_Read_File_Impl,
  public ACE_POSIX_AIOCB_Asynch_Read_Stream
{
  public:
    ACE_POSIX_AIOCB_Asynch_Read_File (
        ACE_POSIX_AIOCB_Proactor *posix_aiocb_proactor
        );
    int read (
        ACE_Message_Block &message_block,
        u_long bytes_to_read,
        u_long offset,
        u_long offset_high,
        const void *act,
        int priority,
        int signal_number = 0
        );
    virtual ~ACE_POSIX_AIOCB_Asynch_Read_File (void);
    int open (
        ACE_Handler &handler,
        ACE_HANDLE handle,
        const void *completion_key,
        ACE_Proactor *proactor = 0
        );
    int cancel (void);
    ACE_Proactor* proactor (void) const;
  private:
    int read (
        ACE_Message_Block &message_block,
        u_long bytes_to_read,
        const void *act,
        int priority,
        int signal_number = 0
        );
};

DESCRIPTION

The implementation classes for POSIX implementation of Asynch Operations are defined here in this file.

Methods belong to ACE_POSIX_Asynch_Operation base class. These

methods are defined here to avoid dominace warnings. They route the call to the ACE_POSIX_Asynch_Operation base class.

int open (
    ACE_Handler &handler,
    ACE_HANDLE handle,
    const void *completion_key,
    ACE_Proactor *proactor = 0
    );

int cancel (void);

ACE_Proactor* proactor (void) const;

AUTHOR

Irfan Pyarali ([email protected]), Tim Harrison ([email protected]) and Alexander Babu Arulanthu [email protected]

LIBRARY

ace