ACE
6.3.3
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This class is a factory for starting off asynchronous reads on a file. This class implements <ACE_Asynch_Read_File> for all POSIX implementations of Proactor. More...
#include <POSIX_Asynch_IO.h>
Public Member Functions | |
ACE_POSIX_Asynch_Read_File (ACE_POSIX_Proactor *posix_proactor) | |
Constructor. More... | |
int | read (ACE_Message_Block &message_block, size_t bytes_to_read, u_long offset, u_long offset_high, const void *act, int priority, int signal_number=0) |
virtual | ~ACE_POSIX_Asynch_Read_File (void) |
Destructor. More... | |
Public Member Functions inherited from ACE_Asynch_Read_File_Impl | |
virtual | ~ACE_Asynch_Read_File_Impl (void) |
virtual int | readv (ACE_Message_Block &message_block, size_t bytes_to_read, u_long offset, u_long offset_high, const void *act, int priority, int signal_number)=0 |
virtual int | readv (ACE_Message_Block &message_block, size_t bytes_to_read, const void *act, int priority, int signal_number)=0 |
Public Member Functions inherited from ACE_Asynch_Read_Stream_Impl | |
virtual | ~ACE_Asynch_Read_Stream_Impl (void) |
Public Member Functions inherited from ACE_Asynch_Operation_Impl | |
virtual | ~ACE_Asynch_Operation_Impl (void) |
Public Member Functions inherited from ACE_POSIX_Asynch_Read_Stream | |
ACE_POSIX_Asynch_Read_Stream (ACE_POSIX_Proactor *posix_proactor) | |
Constructor. More... | |
virtual | ~ACE_POSIX_Asynch_Read_Stream (void) |
Destructor. More... | |
Public Member Functions inherited from ACE_POSIX_Asynch_Operation | |
int | open (const ACE_Handler::Proxy_Ptr &handler_proxy, ACE_HANDLE handle, const void *completion_key, ACE_Proactor *proactor=0) |
int | cancel (void) |
Check the documentation for ACE_Asynch_Operation::cancel. More... | |
ACE_Proactor * | proactor (void) const |
Return the underlying proactor. More... | |
ACE_POSIX_Proactor * | posix_proactor (void) const |
Return the underlying Proactor implementation. More... | |
Private Member Functions | |
int | read (ACE_Message_Block &message_block, size_t bytes_to_read, const void *act, int priority, int signal_number=0) |
Additional Inherited Members | |
Protected Member Functions inherited from ACE_Asynch_Read_File_Impl | |
ACE_Asynch_Read_File_Impl (void) | |
Do-nothing constructor. More... | |
Protected Member Functions inherited from ACE_Asynch_Read_Stream_Impl | |
ACE_Asynch_Read_Stream_Impl (void) | |
Do-nothing constructor. More... | |
Protected Member Functions inherited from ACE_Asynch_Operation_Impl | |
ACE_Asynch_Operation_Impl (void) | |
Do-nothing constructor. More... | |
Protected Member Functions inherited from ACE_POSIX_Asynch_Operation | |
ACE_POSIX_Asynch_Operation (ACE_POSIX_Proactor *posix_proactor) | |
Contructor. More... | |
virtual | ~ACE_POSIX_Asynch_Operation (void) |
Destructor. More... | |
Protected Attributes inherited from ACE_POSIX_Asynch_Operation | |
ACE_POSIX_Proactor * | posix_proactor_ |
ACE_Proactor * | proactor_ |
Proactor that this Asynch IO will be registered with. More... | |
ACE_Handler::Proxy_Ptr | handler_proxy_ |
Handler that will receive the callback. More... | |
ACE_HANDLE | handle_ |
I/O handle used for reading. More... | |
This class is a factory for starting off asynchronous reads on a file. This class implements <ACE_Asynch_Read_File> for all POSIX implementations of Proactor.
Once <open> is called, multiple asynchronous <read>s can started using this class. A <ACE_Asynch_Read_File::Result> will be passed back to the handler
when the asynchronous reads completes through the <ACE_Handler::handle_read_file> callback.
This class differs slightly from <ACE_Asynch_Read_Stream> as it allows the user to specify an offset for the read.
ACE_POSIX_Asynch_Read_File::ACE_POSIX_Asynch_Read_File | ( | ACE_POSIX_Proactor * | posix_proactor | ) |
Constructor.
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virtual |
Destructor.
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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.
Implements ACE_Asynch_Read_File_Impl.
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privatevirtual |
This belongs to ACE_POSIX_Asynch_Read_Stream. We have defined this here to avoid compiler warnings and forward the method to <ACE_POSIX_Asynch_Read_Stream::read>.
Implements ACE_Asynch_Read_File_Impl.