#include <POSIX_Proactor.h>
Inheritance diagram for ACE_POSIX_AIOCB_Proactor:


Public Member Functions | |
| ACE_POSIX_AIOCB_Proactor (size_t nmaxop=ACE_AIO_DEFAULT_SIZE) | |
| virtual Proactor_Type | get_impl_type (void) |
| virtual | ~ACE_POSIX_AIOCB_Proactor (void) |
| Destructor. | |
| virtual int | close (void) |
| Close down the Proactor. | |
| virtual int | handle_events (ACE_Time_Value &wait_time) |
| virtual int | handle_events (void) |
| virtual int | post_completion (ACE_POSIX_Asynch_Result *result) |
| Post a result to the completion port of the Proactor. | |
| virtual int | start_aio (ACE_POSIX_Asynch_Result *result, ACE_POSIX_Proactor::Opcode op) |
| virtual int | cancel_aio (ACE_HANDLE h) |
Protected Member Functions | |
| ACE_POSIX_AIOCB_Proactor (size_t nmaxop, ACE_POSIX_Proactor::Proactor_Type ptype) | |
| virtual int | get_result_status (ACE_POSIX_Asynch_Result *asynch_result, int &error_status, size_t &transfer_count) |
| int | create_result_aiocb_list (void) |
| Create aiocb list. | |
| int | delete_result_aiocb_list (void) |
| void | create_notify_manager (void) |
| void | delete_notify_manager (void) |
| void | check_max_aio_num (void) |
| void | set_notify_handle (ACE_HANDLE h) |
| To identify requests from Notify_Pipe_Manager. | |
| int | handle_events_i (u_long milli_seconds) |
| int | start_deferred_aio (void) |
| Start deferred AIO if necessary. | |
| virtual int | cancel_aiocb (ACE_POSIX_Asynch_Result *result) |
| Cancel running or deferred AIO. | |
| ACE_POSIX_Asynch_Result * | find_completed_aio (int &error_status, size_t &transfer_count, size_t &index, size_t &count) |
| Extract the results of aio. | |
| virtual ssize_t | allocate_aio_slot (ACE_POSIX_Asynch_Result *result) |
| Find free slot to store result and aiocb pointer. | |
| virtual int | start_aio_i (ACE_POSIX_Asynch_Result *result) |
| Initiate an aio operation. | |
| virtual int | notify_completion (int sig_num) |
| int | putq_result (ACE_POSIX_Asynch_Result *result) |
| Put "post_completed" result into the internal queue. | |
| ACE_POSIX_Asynch_Result * | getq_result (void) |
| Get "post_completed" result from the internal queue. | |
| int | clear_result_queue (void) |
| Clear the internal results queue. | |
| int | process_result_queue (void) |
| Process the internal results queue. | |
Protected Attributes | |
| ACE_AIOCB_Notify_Pipe_Manager * | aiocb_notify_pipe_manager_ |
| aiocb ** | aiocb_list_ |
| ACE_POSIX_Asynch_Result ** | result_list_ |
| size_t | aiocb_list_max_size_ |
| To maintain the maximum size of the array (list). | |
| size_t | aiocb_list_cur_size_ |
| To maintain the current size of the array (list). | |
| ACE_SYNCH_MUTEX | mutex_ |
| Mutex to protect work with lists. | |
| ACE_HANDLE | notify_pipe_read_handle_ |
| size_t | num_deferred_aiocb_ |
| size_t | num_started_aio_ |
| Number active,i.e. running requests. | |
| ACE_Unbounded_Queue< ACE_POSIX_Asynch_Result * > | result_queue_ |
| Queue which keeps "post_completed" ACE_POSIX_Asynch_Result's. | |
Friends | |
| class | ACE_AIOCB_Notify_Pipe_Manager |
| Handler needs to call application specific code. | |
| class | ACE_POSIX_Asynch_Operation |
| class | ACE_POSIX_Asynch_Accept |
| class | ACE_POSIX_Asynch_Connect |
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Constructor defines max number asynchronous operations which can be started at the same time |
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Destructor.
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Special constructor for ACE_SUN_Proactor and ACE_POSIX_SIG_Proactor |
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Find free slot to store result and aiocb pointer.
Reimplemented in ACE_POSIX_CB_Proactor. |
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This method should be called from ACE_POSIX_Asynch_Operation::cancel() instead of usual ::aio_cancel. For all deferred AIO requests with handle "h" it removes its from the lists and notifies user. For all running AIO requests with handle "h" it calls ::aio_cancel. According to the POSIX standards we will receive ECANCELED for all ::aio_canceled AIO requests later on return from ::aio_suspend Implements ACE_POSIX_Proactor. |
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Cancel running or deferred AIO.
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Define the maximum number of asynchronous I/O requests for the current OS |
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Clear the internal results queue.
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Close down the Proactor.
Reimplemented from ACE_POSIX_Proactor. |
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Call these methods from derived class when virtual table is built. |
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Create aiocb list.
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Call this method from derived class when virtual table is built. |
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Extract the results of aio.
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Reimplemented from ACE_POSIX_Proactor. Reimplemented in ACE_POSIX_CB_Proactor. |
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Check AIO for completion, error and result status Return: 1 - AIO completed , 0 - not completed yet |
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Get "post_completed" result from the internal queue.
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Block indefinitely until at least one event is dispatched. Dispatch a single set of events. If <wait_time> elapses before any events occur, return 0. Return 1 on success i.e., when a completion is dispatched, non-zero (-1) on errors and errno is set accordingly. Implements ACE_POSIX_Proactor. Reimplemented in ACE_POSIX_CB_Proactor. |
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Dispatch a single set of events. If <wait_time> elapses before any events occur, return 0. Return 1 on success i.e., when a completion is dispatched, non-zero (-1) on errors and errno is set accordingly. Implements ACE_POSIX_Proactor. Reimplemented in ACE_POSIX_CB_Proactor. |
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Dispatch a single set of events. If <milli_seconds> elapses before any events occur, return 0. Return 1 if a completion dispatched. Return -1 on errors. Reimplemented in ACE_POSIX_CB_Proactor. |
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Notify queue of "post_completed" ACE_POSIX_Asynch_Results called from post_completion method Reimplemented in ACE_POSIX_CB_Proactor. |
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Post a result to the completion port of the Proactor.
Implements ACE_POSIX_Proactor. |
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Process the internal results queue.
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Put "post_completed" result into the internal queue.
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To identify requests from Notify_Pipe_Manager.
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Initiate an aio operation.
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Start deferred AIO if necessary.
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Handler needs to call application specific code.
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This class does the registering of Asynch Operations with the Proactor which is necessary in the AIOCB strategy. |
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Use a dynamically allocated array to keep track of all the aio's issued currently. |
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To maintain the current size of the array (list).
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To maintain the maximum size of the array (list).
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This class takes care of doing <accept> when we use AIO_CONTROL_BLOCKS strategy. |
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Mutex to protect work with lists.
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The purpose of this member is only to identify asynchronous request from NotifyManager. We will reserve for it always slot 0 in the list of aiocb's to be sure that don't lose notifications. |
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Number of ACE_POSIX_Asynch_Result's waiting for start i.e. deferred AIOs |
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Number active,i.e. running requests.
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Queue which keeps "post_completed" ACE_POSIX_Asynch_Result's.
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1.3.9.1