#include <POSIX_Asynch_IO.h>
Inheritance diagram for ACE_POSIX_AIOCB_Asynch_Read_File
Public Methods | |
ACE_POSIX_AIOCB_Asynch_Read_File (ACE_POSIX_AIOCB_Proactor *posix_aiocb_proactor) | |
Constructor. | |
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) |
Destructor. | |
int | open (ACE_Handler &handler, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor = 0) |
int | cancel (void) |
Not implemented. Returns 0. More... | |
ACE_Proactor* | proactor (void) const |
Return the underlying proactor. | |
Private Methods | |
int | read (ACE_Message_Block &message_block, u_long bytes_to_read, const void *act, int priority, int signal_number = 0) |
Once <open> is called, multiple asynchronous <read>s can started using this class. A will be passed back to the <handler> when the asynchronous reads completes through the callback.
This class differs slightly from as it allows the user to specify an offset for the read.
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Constructor.
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Destructor.
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Not implemented. Returns 0. @ Reimplemented from ACE_POSIX_AIOCB_Asynch_Read_Stream. |
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Initializes the factory with information which will be used with each asynchronous call. If (<handle> == ACE_INVALID_HANDLE), will be called on the <handler> to get the correct handle. Reimplemented from ACE_POSIX_AIOCB_Asynch_Read_Stream. |
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Return the underlying proactor.
Reimplemented from ACE_POSIX_AIOCB_Asynch_Read_Stream. |
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This belongs to ACE_POSIX_AIOCB_Asynch_Read_Stream. We have defined this here to avoid compiler warnings and forward the method to . Reimplemented from ACE_POSIX_AIOCB_Asynch_Read_Stream. |
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This starts off an asynchronous read. Upto <bytes_to_read> will be read and stored in the <message_block>. The read will start at <offset> from the beginning of the file. |