#include <POSIX_Asynch_IO.h>
Inheritance diagram for ACE_POSIX_Asynch_Read_Dgram:
Public Member Functions | |
ACE_POSIX_Asynch_Read_Dgram (ACE_POSIX_Proactor *posix_proactor) | |
Constructor. | |
virtual | ~ACE_POSIX_Asynch_Read_Dgram (void) |
virtual ssize_t | recv (ACE_Message_Block *message_block, size_t &number_of_bytes_recvd, int flags, int protocol_family, const void *act, int priority, int signal_number) |
Protected Member Functions | |
ACE_POSIX_Asynch_Read_Dgram (void) | |
Do-nothing constructor. |
Once <open> is called, multiple asynchronous <read>s can be started using this class. An ACE_Asynch_Read_Dgram::Result will be passed back to the <handler> when the asynchronous reads completes through the <ACE_Handler::handle_read_stream> callback.
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Constructor.
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Do-nothing constructor.
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This method queues an asynchronous read. Up to message_block->total_size() bytes will be read and stored in the message_block beginning at its write pointer. The message_block write pointer will be updated to reflect any 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. <signal_number> argument is a no-op on non-POSIX4 systems.
Implements ACE_Asynch_Read_Dgram_Impl. |