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# ACE_Module<> Class Template Reference

An abstraction for managing a bi-directional flow of messages. More...

`#include <Module.h>`

Inheritance diagram for ACE_Module<>:

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Collaboration diagram for ACE_Module<>:

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List of all members.

## Public Member Functions
| ACE_Module (void)
| Create an empty Module.
virtual | ~ACE_Module (void)
| Shutdown the Module.
| ACE_Module (const ACE_TCHAR *module_name, ACE_Task< ACE_SYNCH_USE > *writer=0, ACE_Task< ACE_SYNCH_USE > *reader=0, void *args=0, int flags=M_DELETE)
int | open (const ACE_TCHAR *module_name, ACE_Task< ACE_SYNCH_USE > *writer=0, ACE_Task< ACE_SYNCH_USE > *reader=0, void *a=0, int flags=M_DELETE)
int | close (int flags=M_DELETE_NONE)
ACE_Task< ACE_SYNCH_USE > * | writer (void)
| Get the writer task.
void | writer (ACE_Task< ACE_SYNCH_USE > *q, int flags=M_DELETE_WRITER)
ACE_Task< ACE_SYNCH_USE > * | reader (void)
| Get the reader task.
void | reader (ACE_Task< ACE_SYNCH_USE > *q, int flags=M_DELETE_READER)
ACE_Task< ACE_SYNCH_USE > * | sibling (ACE_Task< ACE_SYNCH_USE > *orig)
| Set and get pointer to sibling ACE_Task in an ACE_Module.
const ACE_TCHAR * | name (void) const
| Get the module name.
void | name (const ACE_TCHAR *)
| Set the module name.
void * | arg (void) const
| Get the argument passed to the tasks.
void | arg (void *)
| Set the argument passed to the tasks.
void | link (ACE_Module< ACE_SYNCH_USE > *m)
| Link to other modules in the ustream stack.
ACE_Module< ACE_SYNCH_USE > * | next (void)
| Get the next pointer to the module above in the stream.
void | next (ACE_Module< ACE_SYNCH_USE > *m)
| Set the next pointer to the module above in the stream.
void | dump (void) const
| Dump the state of an object.
## Public Attributes
| ACE_ALLOC_HOOK_DECLARE
| Declare the dynamic allocation hooks.
## Private Member Functions
int | close_i (int which, int flags)
## Private Attributes
ACE_Task< ACE_SYNCH_USE > * | q_pair_ [2]
ACE_TCHAR | name_ [MAXPATHLEN+1]
| Name of the ACE_Module.
ACE_Module< ACE_SYNCH_USE > * | next_
| Next ACE_Module in the stack.
void * | arg_
int | flags_

## Detailed Description

### template<ACE_SYNCH_DECL>
class ACE_Module<>

An abstraction for managing a bi-directional flow of messages.

This is based on the Module concept in System V Streams, which contains a pair of Tasks, one for handling upstream processing, one for handling downstream processing. In general, you shouldn't subclass from this class, but instead subclass from the <ace_task>.

## Constructor & Destructor Documentation

template<ACE_SYNCH_DECL >
ACE_Module<>::ACE_Module | ( | void |  | ) |

| Create an empty Module.

template<ACE_SYNCH_DECL >
virtual ACE_Module<>::~ACE_Module | ( | void |  | ) | `[virtual]`

| Shutdown the Module.

template<ACE_SYNCH_DECL >
ACE_Module<>::ACE_Module | ( | const ACE_TCHAR * | module_name,
|  | ACE_Task< ACE_SYNCH_USE > * | writer = `0`,
|  | ACE_Task< ACE_SYNCH_USE > * | reader = `0`,
|  | void * | args = `0`,
|  | int | flags = `M_DELETE`
| ) |

| Create an initialized module with module_name as its identity and reader and writer as its tasks.

## Member Function Documentation

template<ACE_SYNCH_DECL >
void ACE_Module<>::arg | ( | void * |  | ) |

| Set the argument passed to the tasks.

template<ACE_SYNCH_DECL >
void* ACE_Module<>::arg | ( | void |  | ) | const

| Get the argument passed to the tasks.

template<ACE_SYNCH_DECL >
int ACE_Module<>::close | ( | int | flags = `M_DELETE_NONE` | ) |

| Close down the module and its tasks. The flags argument can be used to override the default behaviour, which depends on previous <flags> values in calls to c'tor, <open>, <reader>, and <writer>. A previous value M_DELETE[_XXX] can not be overridden. Should not be called from within <ACE_Task::module_closed>.

template<ACE_SYNCH_DECL >
int ACE_Module<>::close_i | ( | int | which,
|  | int | flags
| ) | `[private]`

| Implements the close operation for either the reader or the writer task (depending on <which>).

template<ACE_SYNCH_DECL >
void ACE_Module<>::dump | ( | void |  | ) | const

| Dump the state of an object.

template<ACE_SYNCH_DECL >
void ACE_Module<>::link | ( | ACE_Module< ACE_SYNCH_USE > * | m | ) |

| Link to other modules in the ustream stack.

template<ACE_SYNCH_DECL >
void ACE_Module<>::name | ( | const ACE_TCHAR * |  | ) |

| Set the module name.

template<ACE_SYNCH_DECL >
const ACE_TCHAR* ACE_Module<>::name | ( | void |  | ) | const

| Get the module name.

template<ACE_SYNCH_DECL >
void ACE_Module<>::next | ( | ACE_Module< ACE_SYNCH_USE > * | m | ) |

| Set the next pointer to the module above in the stream.

template<ACE_SYNCH_DECL >
ACE_Module<ACE_SYNCH_USE>* ACE_Module<>::next | ( | void |  | ) |

| Get the next pointer to the module above in the stream.

template<ACE_SYNCH_DECL >
int ACE_Module<>::open | ( | const ACE_TCHAR * | module_name,
|  | ACE_Task< ACE_SYNCH_USE > * | writer = `0`,
|  | ACE_Task< ACE_SYNCH_USE > * | reader = `0`,
|  | void * | a = `0`,
|  | int | flags = `M_DELETE`
| ) |

| Initialize the module with <module_name> as its identity and <reader> and <writer> as its tasks. Previously register reader or writers or closed down and deleted according to the value of flags_. Should not be called from within <ACE_Task::module_closed>.

template<ACE_SYNCH_DECL >
void ACE_Module<>::reader | ( | ACE_Task< ACE_SYNCH_USE > * | q,
|  | int | flags = `M_DELETE_READER`
| ) |

| Set the reader task. flags can be used to indicate that the module should delete the reader during a call to close or to the destructor. If a previous reader exists, it is closed. It may also be deleted, depending on the old flags_ value. Should not be called from within <ACE_Task::module_closed>.

template<ACE_SYNCH_DECL >
ACE_Task<ACE_SYNCH_USE>* ACE_Module<>::reader | ( | void |  | ) |

| Get the reader task.

template<ACE_SYNCH_DECL >
ACE_Task<ACE_SYNCH_USE>* ACE_Module<>::sibling | ( | ACE_Task< ACE_SYNCH_USE > * | orig | ) |

| Set and get pointer to sibling ACE_Task in an ACE_Module.

template<ACE_SYNCH_DECL >
void ACE_Module<>::writer | ( | ACE_Task< ACE_SYNCH_USE > * | q,
|  | int | flags = `M_DELETE_WRITER`
| ) |

| Set the writer task. flags can be used to indicate that the module should delete the writer during a call to close or to the destructor. If a previous writer exists, it is closed. It may also be deleted, depending on the old flags_ value. Should not be called from within <ACE_Task::module_closed>.

template<ACE_SYNCH_DECL >
ACE_Task<ACE_SYNCH_USE>* ACE_Module<>::writer | ( | void |  | ) |

| Get the writer task.

## Member Data Documentation

template<ACE_SYNCH_DECL >
ACE_Module<>::ACE_ALLOC_HOOK_DECLARE

| Declare the dynamic allocation hooks.

template<ACE_SYNCH_DECL >
void* ACE_Module<>::arg_`[private]`

| Argument passed through to the reader and writer task when they are opened.

template<ACE_SYNCH_DECL >
int ACE_Module<>::flags_`[private]`

| Holds flags which are used to determine if the reader and writer task have to be deleted on exit

template<ACE_SYNCH_DECL >
ACE_TCHAR ACE_Module<>::name_[MAXPATHLEN+1]`[private]`

| Name of the ACE_Module.

template<ACE_SYNCH_DECL >
ACE_Module<ACE_SYNCH_USE>* ACE_Module<>::next_`[private]`

| Next ACE_Module in the stack.

template<ACE_SYNCH_DECL >
ACE_Task<ACE_SYNCH_USE>* ACE_Module<>::q_pair_[2]`[private]`

| Pair of Tasks that form the "read-side" and "write-side" of the ACE_Module partitioning.

The documentation for this class was generated from the following file:

- Module.h