#include <Asynch_IO.h>
Inheritance diagram for ACE_Asynch_Read_Stream:
Public Member Functions | |
ACE_Asynch_Read_Stream (void) | |
A do nothing constructor. | |
virtual | ~ACE_Asynch_Read_Stream (void) |
Destructor. | |
int | open (ACE_Handler &handler, ACE_HANDLE handle=ACE_INVALID_HANDLE, const void *completion_key=0, ACE_Proactor *proactor=0) |
int | read (ACE_Message_Block &message_block, size_t num_bytes_to_read, const void *act=0, int priority=0, int signal_number=ACE_SIGRTMIN) |
virtual ACE_Asynch_Operation_Impl * | implementation (void) const |
Return the underlying implementation class. | |
Protected Attributes | |
ACE_Asynch_Read_Stream_Impl * | implementation_ |
Implementation class that all methods will be forwarded to. |
Once {open} is called, multiple asynchronous {read}s can started using this class. An ACE_Asynch_Read_Stream::Result will be passed back to the {handler} when the asynchronous reads completes through the {ACE_Handler::handle_read_stream} callback.
|
A do nothing constructor.
|
|
Destructor.
|
|
Return the underlying implementation class.
Implements ACE_Asynch_Operation. Reimplemented in ACE_Asynch_Read_File. |
|
Initializes the factory with information which will be used with each asynchronous call.
Reimplemented from ACE_Asynch_Operation. Reimplemented in ACE_Asynch_Read_File. |
|
This starts off an asynchronous read. Upto {bytes_to_read} will be read and stored in the {message_block}. {message_block}'s {wr_ptr} will be updated to reflect the added bytes if the read operation is successful completed. Priority of the operation is specified by {priority}. On POSIX4-Unix, this is supported. Works like {nice} in Unix. Negative values are not allowed. 0 means priority of the operation same as the process priority. 1 means priority of the operation is one less than process. And so forth. On Win32, {priority} is a no-op. {signal_number} is the POSIX4 real-time signal number to be used for the operation. {signal_number} ranges from ACE_SIGRTMIN to ACE_SIGRTMAX. This argument is a no-op on non-POSIX4 systems. |
|
Implementation class that all methods will be forwarded to.
Reimplemented in ACE_Asynch_Read_File. |