This class is a factory for starting off asynchronous reads on a stream. More...
#include <WIN32_Asynch_IO.h>
Public Member Functions | |
ACE_WIN32_Asynch_Read_Stream (ACE_WIN32_Proactor *win32_proactor) | |
Constructor. | |
int | read (ACE_Message_Block &message_block, size_t bytes_to_read, const void *act, int priority, int signal_number=0) |
int | readv (ACE_Message_Block &message_block, size_t bytes_to_read, const void *act, int priority, int signal_number=0) |
virtual | ~ACE_WIN32_Asynch_Read_Stream (void) |
Destructor. | |
int | open (const ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor) |
int | cancel (void) |
ACE_Proactor * | proactor (void) const |
Return the underlying proactor. | |
Protected Member Functions | |
int | shared_read (ACE_WIN32_Asynch_Read_Stream_Result *result) |
This class is a factory for starting off asynchronous reads on a stream.
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.
ACE_WIN32_Asynch_Read_Stream::ACE_WIN32_Asynch_Read_Stream | ( | ACE_WIN32_Proactor * | win32_proactor | ) |
Constructor.
virtual ACE_WIN32_Asynch_Read_Stream::~ACE_WIN32_Asynch_Read_Stream | ( | void | ) | [virtual] |
Destructor.
int ACE_WIN32_Asynch_Read_Stream::cancel | ( | void | ) | [virtual] |
This cancels all pending accepts operations that were issued by the calling thread. The function does not cancel asynchronous operations issued by other threads.
Reimplemented from ACE_WIN32_Asynch_Operation.
Reimplemented in ACE_WIN32_Asynch_Read_File.
int ACE_WIN32_Asynch_Read_Stream::open | ( | const ACE_Handler::Proxy_Ptr & | handler_proxy, | |
ACE_HANDLE | handle, | |||
const void * | completion_key, | |||
ACE_Proactor * | proactor | |||
) | [virtual] |
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.
Reimplemented from ACE_WIN32_Asynch_Operation.
Reimplemented in ACE_WIN32_Asynch_Read_File.
ACE_Proactor* ACE_WIN32_Asynch_Read_Stream::proactor | ( | void | ) | const [virtual] |
Return the underlying proactor.
Reimplemented from ACE_WIN32_Asynch_Operation.
Reimplemented in ACE_WIN32_Asynch_Read_File.
int ACE_WIN32_Asynch_Read_Stream::read | ( | ACE_Message_Block & | message_block, | |
size_t | bytes_to_read, | |||
const void * | act, | |||
int | priority, | |||
int | signal_number = 0 | |||
) | [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.
Reimplemented in ACE_WIN32_Asynch_Read_File.
int ACE_WIN32_Asynch_Read_Stream::readv | ( | ACE_Message_Block & | message_block, | |
size_t | bytes_to_read, | |||
const void * | act, | |||
int | priority, | |||
int | signal_number = 0 | |||
) | [virtual] |
Same as above but with scatter support, through chaining of composite message blocks using the continuation field.
Implements ACE_Asynch_Read_Stream_Impl.
Reimplemented in ACE_WIN32_Asynch_Read_File.
int ACE_WIN32_Asynch_Read_Stream::shared_read | ( | ACE_WIN32_Asynch_Read_Stream_Result * | result | ) | [protected] |
This is the method which does the real work and is there so that the ACE_Asynch_Read_File class can use it too.