Detailed Description

The object factory is a subsystem that allows to:

Register static objects by name.
Dynamically create objects and assign them a name.
Retrieve existing objects by name.
Free objects by reference.

Allocated OS objects are handled using a reference counter, only when all references have been released then the object memory is freed in a pool.

Precondition: This subsystem requires the CH_CFG_USE_MEMCORE and CH_CFG_USE_MEMPOOLS options to be set to TRUE. The option CH_CFG_USE_HEAP is also required if the support for variable length objects is enabled.

Note: Compatible with RT and NIL.

Collaboration diagram for Dynamic Objects Factory:

Data Structures
struct	ch_dyn_element
	Type of a dynamic object list element. More...
struct	ch_dyn_list
	Type of a dynamic object list. More...
struct	ch_registered_static_object
	Type of a registered object. More...
struct	ch_dyn_object
	Type of a dynamic buffer object. More...
struct	ch_dyn_semaphore
	Type of a dynamic semaphore. More...
struct	ch_dyn_mailbox
	Type of a dynamic buffer object. More...
struct	ch_dyn_objects_fifo
	Type of a dynamic buffer object. More...
struct	ch_dyn_pipe
	Type of a dynamic pipe object. More...
struct	ch_objects_factory
	Type of the factory main object. More...

Macros
#define	F_LOCK()
#define	F_UNLOCK()
#define	CH_CFG_FACTORY_MAX_NAMES_LENGTH 8
	Maximum length for object names.
#define	CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
	Enables the registry of generic objects.
#define	CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
	Enables factory for generic buffers.
#define	CH_CFG_FACTORY_SEMAPHORES TRUE
	Enables factory for semaphores.
#define	CH_CFG_FACTORY_SEMAPHORES FALSE
	Enables factory for semaphores.
#define	CH_CFG_FACTORY_MAILBOXES TRUE
	Enables factory for mailboxes.
#define	CH_CFG_FACTORY_MAILBOXES FALSE
	Enables factory for mailboxes.
#define	CH_CFG_FACTORY_OBJ_FIFOS TRUE
	Enables factory for objects FIFOs.
#define	CH_CFG_FACTORY_OBJ_FIFOS TRUE
	Enables factory for objects FIFOs.
#define	CH_CFG_FACTORY_OBJ_FIFOS FALSE
	Enables factory for objects FIFOs.
#define	CH_CFG_FACTORY_PIPES TRUE
	Enables factory for Pipes.
#define	CH_CFG_FACTORY_PIPES FALSE
	Enables factory for Pipes.
#define	CH_FACTORY_REQUIRES_POOLS
#define	CH_FACTORY_REQUIRES_HEAP

Typedefs
typedef struct ch_dyn_element	dyn_element_t
	Type of a dynamic object list element.
typedef struct ch_dyn_list	dyn_list_t
	Type of a dynamic object list.
typedef struct ch_registered_static_object	registered_object_t
	Type of a registered object.
typedef struct ch_dyn_object	dyn_buffer_t
	Type of a dynamic buffer object.
typedef struct ch_dyn_semaphore	dyn_semaphore_t
	Type of a dynamic semaphore.
typedef struct ch_dyn_mailbox	dyn_mailbox_t
	Type of a dynamic buffer object.
typedef struct ch_dyn_objects_fifo	dyn_objects_fifo_t
	Type of a dynamic buffer object.
typedef struct ch_dyn_pipe	dyn_pipe_t
	Type of a dynamic pipe object.
typedef struct ch_objects_factory	objects_factory_t
	Type of the factory main object.

Functions
static void	copy_name (const char sp, char dp)
static void	dyn_list_init (dyn_list_t *dlp)
static dyn_element_t *	dyn_list_find (const char name, dyn_list_t dlp)
static dyn_element_t *	dyn_list_find_prev (dyn_element_t element, dyn_list_t dlp)
static dyn_element_t *	dyn_list_unlink (dyn_element_t *prev)
static dyn_element_t *	dyn_create_object_heap (const char name, dyn_list_t dlp, size_t size, unsigned align)
static void	dyn_release_object_heap (dyn_element_t dep, dyn_list_t dlp)
static dyn_element_t *	dyn_create_object_pool (const char name, dyn_list_t dlp, memory_pool_t *mp)
static void	dyn_release_object_pool (dyn_element_t dep, dyn_list_t dlp, memory_pool_t *mp)
static dyn_element_t *	dyn_find_object (const char name, dyn_list_t dlp)
void	__factory_init (void)
	Initializes the objects factory.
registered_object_t *	chFactoryRegisterObject (const char name, void objp)
	Registers a generic object.
registered_object_t *	chFactoryFindObject (const char *name)
	Retrieves a registered object.
registered_object_t *	chFactoryFindObjectByPointer (void *objp)
	Retrieves a registered object by pointer.
void	chFactoryReleaseObject (registered_object_t *rop)
	Releases a registered object.
dyn_buffer_t *	chFactoryCreateBuffer (const char *name, size_t size)
	Creates a generic dynamic buffer object.
dyn_buffer_t *	chFactoryFindBuffer (const char *name)
	Retrieves a dynamic buffer object.
void	chFactoryReleaseBuffer (dyn_buffer_t *dbp)
	Releases a dynamic buffer object.
dyn_semaphore_t *	chFactoryCreateSemaphore (const char *name, cnt_t n)
	Creates a dynamic semaphore object.
dyn_semaphore_t *	chFactoryFindSemaphore (const char *name)
	Retrieves a dynamic semaphore object.
void	chFactoryReleaseSemaphore (dyn_semaphore_t *dsp)
	Releases a dynamic semaphore object.
dyn_mailbox_t *	chFactoryCreateMailbox (const char *name, size_t n)
	Creates a dynamic mailbox object.
dyn_mailbox_t *	chFactoryFindMailbox (const char *name)
	Retrieves a dynamic mailbox object.
void	chFactoryReleaseMailbox (dyn_mailbox_t *dmp)
	Releases a dynamic mailbox object.
dyn_objects_fifo_t *	chFactoryCreateObjectsFIFO (const char *name, size_t objsize, size_t objn, unsigned objalign)
	Creates a dynamic "objects FIFO" object.
dyn_objects_fifo_t *	chFactoryFindObjectsFIFO (const char *name)
	Retrieves a dynamic "objects FIFO" object.
void	chFactoryReleaseObjectsFIFO (dyn_objects_fifo_t *dofp)
	Releases a dynamic "objects FIFO" object.
dyn_pipe_t *	chFactoryCreatePipe (const char *name, size_t size)
	Creates a dynamic pipe object.
dyn_pipe_t *	chFactoryFindPipe (const char *name)
	Retrieves a dynamic pipe object.
void	chFactoryReleasePipe (dyn_pipe_t *dpp)
	Releases a dynamic pipe object.
static dyn_element_t *	chFactoryDuplicateReference (dyn_element_t *dep)
	Duplicates an object reference.
static void *	chFactoryGetObject (registered_object_t *rop)
	Returns the pointer to the inner registered object.
static size_t	chFactoryGetBufferSize (dyn_buffer_t *dbp)
	Returns the size of a generic dynamic buffer object.
static uint8_t *	chFactoryGetBuffer (dyn_buffer_t *dbp)
	Returns the pointer to the inner buffer.
static semaphore_t *	chFactoryGetSemaphore (dyn_semaphore_t *dsp)
	Returns the pointer to the inner semaphore.
static mailbox_t *	chFactoryGetMailbox (dyn_mailbox_t *dmp)
	Returns the pointer to the inner mailbox.
static objects_fifo_t *	chFactoryGetObjectsFIFO (dyn_objects_fifo_t *dofp)
	Returns the pointer to the inner objects FIFO.
static pipe_t *	chFactoryGetPipe (dyn_pipe_t *dpp)
	Returns the pointer to the inner pipe.

Variables
objects_factory_t	ch_factory
	Factory object static instance.

Macro Definition Documentation

◆ F_LOCK

#define F_LOCK ( )

Value:

chMtxLock(&ch_factory.mtx)

chMtxLock

void chMtxLock(mutex_t *mp)

Locks the specified mutex.

Definition chmtx.c:123

ch_factory

objects_factory_t ch_factory

Factory object static instance.

Definition chfactory.c:72

Definition at line 56 of file chfactory.c.

Referenced by chFactoryCreateBuffer(), chFactoryCreateMailbox(), chFactoryCreateObjectsFIFO(), chFactoryCreatePipe(), chFactoryCreateSemaphore(), chFactoryFindBuffer(), chFactoryFindMailbox(), chFactoryFindObject(), chFactoryFindObjectByPointer(), chFactoryFindObjectsFIFO(), chFactoryFindPipe(), chFactoryFindSemaphore(), chFactoryRegisterObject(), chFactoryReleaseBuffer(), chFactoryReleaseMailbox(), chFactoryReleaseObject(), chFactoryReleaseObjectsFIFO(), chFactoryReleasePipe(), and chFactoryReleaseSemaphore().

◆ F_UNLOCK

#define F_UNLOCK ( )

Value:

chMtxUnlock(&ch_factory.mtx)

chMtxUnlock

void chMtxUnlock(mutex_t *mp)

Unlocks the specified mutex.

Definition chmtx.c:326

Definition at line 57 of file chfactory.c.

Referenced by chFactoryCreateBuffer(), chFactoryCreateMailbox(), chFactoryCreateObjectsFIFO(), chFactoryCreatePipe(), chFactoryCreateSemaphore(), chFactoryFindBuffer(), chFactoryFindMailbox(), chFactoryFindObject(), chFactoryFindObjectByPointer(), chFactoryFindObjectsFIFO(), chFactoryFindPipe(), chFactoryFindSemaphore(), chFactoryRegisterObject(), chFactoryReleaseBuffer(), chFactoryReleaseMailbox(), chFactoryReleaseObject(), chFactoryReleaseObjectsFIFO(), chFactoryReleasePipe(), and chFactoryReleaseSemaphore().

◆ CH_CFG_FACTORY_MAX_NAMES_LENGTH

#define CH_CFG_FACTORY_MAX_NAMES_LENGTH 8

Maximum length for object names.

If the specified length is zero then the name is stored by pointer but this could have unintended side effects.

Definition at line 47 of file chfactory.h.

◆ CH_CFG_FACTORY_OBJECTS_REGISTRY

#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE

Enables the registry of generic objects.

Definition at line 54 of file chfactory.h.

◆ CH_CFG_FACTORY_GENERIC_BUFFERS

#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE

Enables factory for generic buffers.

Definition at line 61 of file chfactory.h.

◆ CH_CFG_FACTORY_SEMAPHORES [1/2]

#define CH_CFG_FACTORY_SEMAPHORES TRUE

Enables factory for semaphores.

Definition at line 68 of file chfactory.h.

◆ CH_CFG_FACTORY_SEMAPHORES [2/2]

#define CH_CFG_FACTORY_SEMAPHORES FALSE

Enables factory for semaphores.

Definition at line 68 of file chfactory.h.

◆ CH_CFG_FACTORY_MAILBOXES [1/2]

#define CH_CFG_FACTORY_MAILBOXES TRUE

Enables factory for mailboxes.

Definition at line 75 of file chfactory.h.

◆ CH_CFG_FACTORY_MAILBOXES [2/2]

#define CH_CFG_FACTORY_MAILBOXES FALSE

Enables factory for mailboxes.

Definition at line 75 of file chfactory.h.

◆ CH_CFG_FACTORY_OBJ_FIFOS [1/3]

#define CH_CFG_FACTORY_OBJ_FIFOS TRUE

Enables factory for objects FIFOs.

Definition at line 82 of file chfactory.h.

◆ CH_CFG_FACTORY_OBJ_FIFOS [2/3]

#define CH_CFG_FACTORY_OBJ_FIFOS TRUE

Enables factory for objects FIFOs.

Definition at line 82 of file chfactory.h.

◆ CH_CFG_FACTORY_OBJ_FIFOS [3/3]

#define CH_CFG_FACTORY_OBJ_FIFOS FALSE

Enables factory for objects FIFOs.

Definition at line 82 of file chfactory.h.

◆ CH_CFG_FACTORY_PIPES [1/2]

#define CH_CFG_FACTORY_PIPES TRUE

Enables factory for Pipes.

Definition at line 96 of file chfactory.h.

◆ CH_CFG_FACTORY_PIPES [2/2]

#define CH_CFG_FACTORY_PIPES FALSE

Enables factory for Pipes.

Definition at line 96 of file chfactory.h.

◆ CH_FACTORY_REQUIRES_POOLS

#define CH_FACTORY_REQUIRES_POOLS

Value:

((CH_CFG_FACTORY_OBJECTS_REGISTRY == TRUE) || \

(CH_CFG_FACTORY_SEMAPHORES == TRUE))

CH_CFG_FACTORY_OBJECTS_REGISTRY

#define CH_CFG_FACTORY_OBJECTS_REGISTRY

Enables the registry of generic objects.

Definition chconf.h:502

CH_CFG_FACTORY_SEMAPHORES

#define CH_CFG_FACTORY_SEMAPHORES

Enables factory for semaphores.

Definition chconf.h:516

TRUE

#define TRUE

Generic 'true' preprocessor boolean constant.

Definition ch.h:86

Definition at line 131 of file chfactory.h.

◆ CH_FACTORY_REQUIRES_HEAP

#define CH_FACTORY_REQUIRES_HEAP

Value:

  ((CH_CFG_FACTORY_GENERIC_BUFFERS == TRUE) ||                              \
   (CH_CFG_FACTORY_MAILBOXES == TRUE) ||                                    \
   (CH_CFG_FACTORY_OBJ_FIFOS == TRUE) ||                                    \
   (CH_CFG_FACTORY_PIPES == TRUE))

Definition at line 135 of file chfactory.h.

Typedef Documentation

◆ dyn_element_t

typedef struct ch_dyn_element dyn_element_t

Type of a dynamic object list element.

◆ dyn_list_t

typedef struct ch_dyn_list dyn_list_t

Type of a dynamic object list.

◆ registered_object_t

typedef struct ch_registered_static_object registered_object_t

Type of a registered object.

◆ dyn_buffer_t

typedef struct ch_dyn_object dyn_buffer_t

Type of a dynamic buffer object.

◆ dyn_semaphore_t

typedef struct ch_dyn_semaphore dyn_semaphore_t

Type of a dynamic semaphore.

◆ dyn_mailbox_t

typedef struct ch_dyn_mailbox dyn_mailbox_t

Type of a dynamic buffer object.

◆ dyn_objects_fifo_t

typedef struct ch_dyn_objects_fifo dyn_objects_fifo_t

Type of a dynamic buffer object.

◆ dyn_pipe_t

typedef struct ch_dyn_pipe dyn_pipe_t

Type of a dynamic pipe object.

◆ objects_factory_t

typedef struct ch_objects_factory objects_factory_t

Type of the factory main object.

Function Documentation

◆ copy_name()

void copy_name	(	const char *	sp,
		char *	dp )

static

Definition at line 86 of file chfactory.c.

References CH_CFG_FACTORY_MAX_NAMES_LENGTH.

Referenced by dyn_create_object_heap(), and dyn_create_object_pool().

◆ dyn_list_init()

void dyn_list_init ( dyn_list_t * dlp )

inlinestatic

Definition at line 98 of file chfactory.c.

References ch_dyn_list::next.

Referenced by __factory_init().

◆ dyn_list_find()

dyn_element_t * dyn_list_find	(	const char *	name,
		dyn_list_t *	dlp )

static

Definition at line 103 of file chfactory.c.

References CH_CFG_FACTORY_MAX_NAMES_LENGTH, ch_dyn_element::name, ch_dyn_element::next, and ch_dyn_list::next.

Referenced by dyn_create_object_heap(), dyn_create_object_pool(), and dyn_find_object().

◆ dyn_list_find_prev()

dyn_element_t * dyn_list_find_prev	(	dyn_element_t *	element,
		dyn_list_t *	dlp )

static

Definition at line 116 of file chfactory.c.

References ch_dyn_element::next.

Referenced by dyn_release_object_heap(), and dyn_release_object_pool().

◆ dyn_list_unlink()

dyn_element_t * dyn_list_unlink ( dyn_element_t * prev )

static

Definition at line 133 of file chfactory.c.

References ch_dyn_element::next.

Referenced by dyn_release_object_heap(), and dyn_release_object_pool().

◆ dyn_create_object_heap()

dyn_element_t * dyn_create_object_heap	(	const char *	name,
		dyn_list_t *	dlp,
		size_t	size,
		unsigned	align )

static

Definition at line 142 of file chfactory.c.

References chDbgCheck, chHeapAllocAligned(), copy_name(), dyn_list_find(), ch_dyn_element::name, ch_dyn_element::next, ch_dyn_list::next, and ch_dyn_element::refs.

Referenced by chFactoryCreateBuffer(), chFactoryCreateMailbox(), chFactoryCreateObjectsFIFO(), and chFactoryCreatePipe().

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◆ dyn_release_object_heap()

void dyn_release_object_heap	(	dyn_element_t *	dep,
		dyn_list_t *	dlp )

static

Definition at line 173 of file chfactory.c.

References chDbgAssert, chDbgCheck, chHeapFree(), dyn_list_find_prev(), dyn_list_unlink(), and ch_dyn_element::refs.

Referenced by chFactoryReleaseBuffer(), chFactoryReleaseMailbox(), chFactoryReleaseObjectsFIFO(), and chFactoryReleasePipe().

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◆ dyn_create_object_pool()

dyn_element_t * dyn_create_object_pool	(	const char *	name,
		dyn_list_t *	dlp,
		memory_pool_t *	mp )

static

Definition at line 198 of file chfactory.c.

References chDbgCheck, chPoolAlloc(), copy_name(), dyn_list_find(), ch_dyn_element::name, ch_dyn_element::next, ch_dyn_list::next, and ch_dyn_element::refs.

Referenced by chFactoryCreateSemaphore(), and chFactoryRegisterObject().

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◆ dyn_release_object_pool()

void dyn_release_object_pool	(	dyn_element_t *	dep,
		dyn_list_t *	dlp,
		memory_pool_t *	mp )

static

Definition at line 228 of file chfactory.c.

References chDbgAssert, chDbgCheck, chPoolFree(), dyn_list_find_prev(), dyn_list_unlink(), and ch_dyn_element::refs.

Referenced by chFactoryReleaseObject(), and chFactoryReleaseSemaphore().

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◆ dyn_find_object()

dyn_element_t * dyn_find_object	(	const char *	name,
		dyn_list_t *	dlp )

static

Definition at line 253 of file chfactory.c.

References chDbgCheck, dyn_list_find(), and ch_dyn_element::refs.

Referenced by chFactoryFindBuffer(), chFactoryFindMailbox(), chFactoryFindObject(), chFactoryFindObjectsFIFO(), chFactoryFindPipe(), and chFactoryFindSemaphore().

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◆ __factory_init()

void __factory_init ( void )

Initializes the objects factory.

Function Class:: Object or module nitializer function.

Definition at line 277 of file chfactory.c.

References ch_factory, chCoreAllocAlignedI(), chMtxObjectInit(), chPoolObjectInit(), chSemObjectInit(), and dyn_list_init().

Referenced by __oslib_init().

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◆ chFactoryRegisterObject()

registered_object_t * chFactoryRegisterObject	(	const char *	name,
		void *	objp )

Registers a generic object.

Postcondition: A reference to the registered object is returned and the reference counter is initialized to one.

Parameters

[in]	name	name to be assigned to the registered object
[in]	objp	pointer to the object to be registered

Returns: The reference to the registered object.

Return values

NULL	if the object to be registered cannot be allocated or a registered object with the same name exists.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 326 of file chfactory.c.

References ch_factory, dyn_create_object_pool(), F_LOCK, F_UNLOCK, and ch_registered_static_object::objp.

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◆ chFactoryFindObject()

registered_object_t * chFactoryFindObject ( const char * name )

Retrieves a registered object.

Postcondition: A reference to the registered object is returned with the reference counter increased by one.

Parameters

[in] name name of the registered object

Returns: The reference to the found registered object.

Return values

NULL	if a registered object with the specified name does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 358 of file chfactory.c.

References ch_factory, dyn_find_object(), F_LOCK, and F_UNLOCK.

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◆ chFactoryFindObjectByPointer()

registered_object_t * chFactoryFindObjectByPointer ( void * objp )

Retrieves a registered object by pointer.

Postcondition: A reference to the registered object is returned with the reference counter increased by one.

Parameters

[in] objp pointer to the object to be retrieved

Returns: The reference to the found registered object.

Return values

NULL	if a registered object with the specified pointer does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 383 of file chfactory.c.

References ch_factory, ch_registered_static_object::element, F_LOCK, F_UNLOCK, ch_dyn_element::next, ch_registered_static_object::objp, and ch_dyn_element::refs.

◆ chFactoryReleaseObject()

void chFactoryReleaseObject ( registered_object_t * rop )

Releases a registered object.

The reference counter of the registered object is decreased by one, if reaches zero then the registered object memory is freed.

Note: The object itself is not freed, it could be static, only the allocated list element is freed.

Parameters

[in] rop registered object reference

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 416 of file chfactory.c.

References ch_factory, dyn_release_object_pool(), ch_registered_static_object::element, F_LOCK, and F_UNLOCK.

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◆ chFactoryCreateBuffer()

dyn_buffer_t * chFactoryCreateBuffer	(	const char *	name,
		size_t	size )

Creates a generic dynamic buffer object.

Postcondition: A reference to the dynamic buffer object is returned and the reference counter is initialized to one.; The dynamic buffer object is filled with zeros.

Parameters

[in]	name	name to be assigned to the new dynamic buffer object
[in]	size	payload size of the dynamic buffer object to be created

Returns: The reference to the created dynamic buffer object.

Return values

NULL	if the dynamic buffer object cannot be allocated or a dynamic buffer object with the same name exists.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 444 of file chfactory.c.

References ch_factory, CH_HEAP_ALIGNMENT, dyn_create_object_heap(), F_LOCK, and F_UNLOCK.

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◆ chFactoryFindBuffer()

dyn_buffer_t * chFactoryFindBuffer ( const char * name )

Retrieves a dynamic buffer object.

Postcondition: A reference to the dynamic buffer object is returned with the reference counter increased by one.

Parameters

[in] name name of the dynamic buffer object

Returns: The reference to the found dynamic buffer object.

Return values

NULL	if a dynamic buffer object with the specified name does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 476 of file chfactory.c.

References ch_factory, dyn_find_object(), F_LOCK, and F_UNLOCK.

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◆ chFactoryReleaseBuffer()

void chFactoryReleaseBuffer ( dyn_buffer_t * dbp )

Releases a dynamic buffer object.

The reference counter of the dynamic buffer object is decreased by one, if reaches zero then the dynamic buffer object memory is freed.

Parameters

[in] dbp dynamic buffer object reference

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 498 of file chfactory.c.

References ch_factory, dyn_release_object_heap(), ch_dyn_object::element, F_LOCK, and F_UNLOCK.

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◆ chFactoryCreateSemaphore()

dyn_semaphore_t * chFactoryCreateSemaphore	(	const char *	name,
		cnt_t	n )

Creates a dynamic semaphore object.

Postcondition: A reference to the dynamic semaphore object is returned and the reference counter is initialized to one.; The dynamic semaphore object is initialized and ready to use.

Parameters

[in]	name	name to be assigned to the new dynamic semaphore object
[in]	n	dynamic semaphore object counter initialization value

Returns: The reference to the created dynamic semaphore object.

Return values

NULL	if the dynamic semaphore object cannot be allocated or a dynamic semaphore with the same name exists.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 524 of file chfactory.c.

References ch_factory, chSemObjectInit(), dyn_create_object_pool(), F_LOCK, F_UNLOCK, and ch_dyn_semaphore::sem.

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◆ chFactoryFindSemaphore()

dyn_semaphore_t * chFactoryFindSemaphore ( const char * name )

Retrieves a dynamic semaphore object.

Postcondition: A reference to the dynamic semaphore object is returned with the reference counter increased by one.

Parameters

[in] name name of the dynamic semaphore object

Returns: The reference to the found dynamic semaphore object.

Return values

NULL	if a dynamic semaphore object with the specified name does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 555 of file chfactory.c.

References ch_factory, dyn_find_object(), F_LOCK, and F_UNLOCK.

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◆ chFactoryReleaseSemaphore()

void chFactoryReleaseSemaphore ( dyn_semaphore_t * dsp )

Releases a dynamic semaphore object.

The reference counter of the dynamic semaphore object is decreased by one, if reaches zero then the dynamic semaphore object memory is freed.

Parameters

[in] dsp dynamic semaphore object reference

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 577 of file chfactory.c.

References ch_factory, dyn_release_object_pool(), ch_dyn_semaphore::element, F_LOCK, and F_UNLOCK.

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◆ chFactoryCreateMailbox()

dyn_mailbox_t * chFactoryCreateMailbox	(	const char *	name,
		size_t	n )

Creates a dynamic mailbox object.

Postcondition: A reference to the dynamic mailbox object is returned and the reference counter is initialized to one.; The dynamic mailbox object is initialized and ready to use.

Parameters

[in]	name	name to be assigned to the new dynamic mailbox object
[in]	n	mailbox buffer size as number of messages

Returns: The reference to the created dynamic mailbox object.

Return values

NULL	if the dynamic mailbox object cannot be allocated or a dynamic mailbox object with the same name exists.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 605 of file chfactory.c.

References ch_factory, CH_HEAP_ALIGNMENT, chMBObjectInit(), dyn_create_object_heap(), F_LOCK, F_UNLOCK, and ch_dyn_mailbox::mbx.

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◆ chFactoryFindMailbox()

dyn_mailbox_t * chFactoryFindMailbox ( const char * name )

Retrieves a dynamic mailbox object.

Postcondition: A reference to the dynamic mailbox object is returned with the reference counter increased by one.

Parameters

[in] name name of the dynamic mailbox object

Returns: The reference to the found dynamic mailbox object.

Return values

NULL	if a dynamic mailbox object with the specified name does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 638 of file chfactory.c.

References ch_factory, dyn_find_object(), F_LOCK, and F_UNLOCK.

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◆ chFactoryReleaseMailbox()

void chFactoryReleaseMailbox ( dyn_mailbox_t * dmp )

Releases a dynamic mailbox object.

The reference counter of the dynamic mailbox object is decreased by one, if reaches zero then the dynamic mailbox object memory is freed.

Parameters

[in] dmp dynamic mailbox object reference

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 660 of file chfactory.c.

References ch_factory, dyn_release_object_heap(), ch_dyn_mailbox::element, F_LOCK, and F_UNLOCK.

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◆ chFactoryCreateObjectsFIFO()

dyn_objects_fifo_t * chFactoryCreateObjectsFIFO	(	const char *	name,
		size_t	objsize,
		size_t	objn,
		unsigned	objalign )

Creates a dynamic "objects FIFO" object.

Postcondition: A reference to the dynamic "objects FIFO" object is returned and the reference counter is initialized to one.; The dynamic "objects FIFO" object is initialized and ready to use.

Parameters

[in]	name	name to be assigned to the new dynamic "objects FIFO" object
[in]	objsize	size of objects
[in]	objn	number of objects available
[in]	objalign	required objects alignment

Returns: The reference to the created dynamic "objects FIFO" object.

Return values

NULL	if the dynamic "objects FIFO" object cannot be allocated or a dynamic "objects FIFO" object with the same name exists.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 690 of file chfactory.c.

References ch_factory, chFifoObjectInitAligned(), dyn_create_object_heap(), F_LOCK, F_UNLOCK, ch_dyn_objects_fifo::fifo, and MEM_ALIGN_NEXT.

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◆ chFactoryFindObjectsFIFO()

dyn_objects_fifo_t * chFactoryFindObjectsFIFO ( const char * name )

Retrieves a dynamic "objects FIFO" object.

Postcondition: A reference to the dynamic "objects FIFO" object is returned with the reference counter increased by one.

Parameters

[in] name name of the dynamic "objects FIFO" object

Returns: The reference to the found dynamic "objects FIFO" object.

Return values

NULL	if a dynamic "objects FIFO" object with the specified name does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 738 of file chfactory.c.

References ch_factory, dyn_find_object(), F_LOCK, and F_UNLOCK.

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◆ chFactoryReleaseObjectsFIFO()

void chFactoryReleaseObjectsFIFO ( dyn_objects_fifo_t * dofp )

Releases a dynamic "objects FIFO" object.

The reference counter of the dynamic "objects FIFO" object is decreased by one, if reaches zero then the dynamic "objects FIFO" object memory is freed.

Parameters

[in] dofp dynamic "objects FIFO" object reference

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 760 of file chfactory.c.

References ch_factory, dyn_release_object_heap(), ch_dyn_objects_fifo::element, F_LOCK, and F_UNLOCK.

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◆ chFactoryCreatePipe()

dyn_pipe_t * chFactoryCreatePipe	(	const char *	name,
		size_t	size )

Creates a dynamic pipe object.

Postcondition: A reference to the dynamic pipe object is returned and the reference counter is initialized to one.; The dynamic pipe object is initialized and ready to use.

Parameters

[in]	name	name to be assigned to the new dynamic pipe object
[in]	size	pipe buffer size

Returns: The reference to the created dynamic pipe object.

Return values

NULL	if the dynamic pipe object cannot be allocated or a dynamic pipe object with the same name exists.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 788 of file chfactory.c.

References ch_factory, CH_HEAP_ALIGNMENT, chPipeObjectInit(), dyn_create_object_heap(), F_LOCK, F_UNLOCK, and ch_dyn_pipe::pipe.

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◆ chFactoryFindPipe()

dyn_pipe_t * chFactoryFindPipe ( const char * name )

Retrieves a dynamic pipe object.

Postcondition: A reference to the dynamic pipe object is returned with the reference counter increased by one.

Parameters

[in] name name of the pipe object

Returns: The reference to the found dynamic pipe object.

Return values

NULL	if a dynamic pipe object with the specified name does not exist.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 821 of file chfactory.c.

References ch_factory, dyn_find_object(), F_LOCK, and F_UNLOCK.

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◆ chFactoryReleasePipe()

void chFactoryReleasePipe ( dyn_pipe_t * dpp )

Releases a dynamic pipe object.

The reference counter of the dynamic pipe object is decreased by one, if reaches zero then the dynamic pipe object memory is freed.

Parameters

[in] dpp dynamic pipe object reference

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 843 of file chfactory.c.

References ch_factory, dyn_release_object_heap(), ch_dyn_pipe::element, F_LOCK, and F_UNLOCK.

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◆ chFactoryDuplicateReference()

dyn_element_t * chFactoryDuplicateReference ( dyn_element_t * dep )

inlinestatic

Duplicates an object reference.

Note: This function can be used on any kind of dynamic object.

Parameters

[in] dep pointer to the element field of the object

Returns: The duplicated object reference.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 409 of file chfactory.h.

References ch_dyn_element::refs.

◆ chFactoryGetObject()

void * chFactoryGetObject ( registered_object_t * rop )

inlinestatic

Returns the pointer to the inner registered object.

Parameters

[in] rop registered object reference

Returns: The pointer to the registered object.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 425 of file chfactory.h.

References ch_registered_static_object::objp.

◆ chFactoryGetBufferSize()

size_t chFactoryGetBufferSize ( dyn_buffer_t * dbp )

inlinestatic

Returns the size of a generic dynamic buffer object.

Parameters

[in] dbp dynamic buffer object reference

Returns: The size of the buffer object in bytes.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 440 of file chfactory.h.

References chHeapGetSize().

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◆ chFactoryGetBuffer()

uint8_t * chFactoryGetBuffer ( dyn_buffer_t * dbp )

inlinestatic

Returns the pointer to the inner buffer.

Parameters

[in] dbp dynamic buffer object reference

Returns: The pointer to the dynamic buffer.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 453 of file chfactory.h.

◆ chFactoryGetSemaphore()

semaphore_t * chFactoryGetSemaphore ( dyn_semaphore_t * dsp )

inlinestatic

Returns the pointer to the inner semaphore.

Parameters

[in] dsp dynamic semaphore object reference

Returns: The pointer to the semaphore.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 468 of file chfactory.h.

References ch_dyn_semaphore::sem.

◆ chFactoryGetMailbox()

mailbox_t * chFactoryGetMailbox ( dyn_mailbox_t * dmp )

inlinestatic

Returns the pointer to the inner mailbox.

Parameters

[in] dmp dynamic mailbox object reference

Returns: The pointer to the mailbox.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 483 of file chfactory.h.

References ch_dyn_mailbox::mbx.

◆ chFactoryGetObjectsFIFO()

objects_fifo_t * chFactoryGetObjectsFIFO ( dyn_objects_fifo_t * dofp )

inlinestatic

Returns the pointer to the inner objects FIFO.

Parameters

[in] dofp dynamic "objects FIFO" object reference

Returns: The pointer to the objects FIFO.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 498 of file chfactory.h.

References ch_dyn_objects_fifo::fifo.

◆ chFactoryGetPipe()

pipe_t * chFactoryGetPipe ( dyn_pipe_t * dpp )

inlinestatic

Returns the pointer to the inner pipe.

Parameters

[in] dpp dynamic pipe object reference

Returns: The pointer to the pipe.

Function Class:: Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 513 of file chfactory.h.

References ch_dyn_pipe::pipe.

Variable Documentation

◆ ch_factory

objects_factory_t ch_factory

Factory object static instance.

Note: It is a global object because it could be accessed through a specific debugger plugin.

Definition at line 72 of file chfactory.c.

Referenced by __factory_init(), chFactoryCreateBuffer(), chFactoryCreateMailbox(), chFactoryCreateObjectsFIFO(), chFactoryCreatePipe(), chFactoryCreateSemaphore(), chFactoryFindBuffer(), chFactoryFindMailbox(), chFactoryFindObject(), chFactoryFindObjectByPointer(), chFactoryFindObjectsFIFO(), chFactoryFindPipe(), chFactoryFindSemaphore(), chFactoryRegisterObject(), chFactoryReleaseBuffer(), chFactoryReleaseMailbox(), chFactoryReleaseObject(), chFactoryReleaseObjectsFIFO(), chFactoryReleasePipe(), and chFactoryReleaseSemaphore().

Detailed Description

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ F_LOCK

◆ F_UNLOCK

◆ CH_CFG_FACTORY_MAX_NAMES_LENGTH

◆ CH_CFG_FACTORY_OBJECTS_REGISTRY

◆ CH_CFG_FACTORY_GENERIC_BUFFERS

◆ CH_CFG_FACTORY_SEMAPHORES [1/2]

◆ CH_CFG_FACTORY_SEMAPHORES [2/2]

◆ CH_CFG_FACTORY_MAILBOXES [1/2]

◆ CH_CFG_FACTORY_MAILBOXES [2/2]

◆ CH_CFG_FACTORY_OBJ_FIFOS [1/3]

◆ CH_CFG_FACTORY_OBJ_FIFOS [2/3]

◆ CH_CFG_FACTORY_OBJ_FIFOS [3/3]

◆ CH_CFG_FACTORY_PIPES [1/2]

◆ CH_CFG_FACTORY_PIPES [2/2]

◆ CH_FACTORY_REQUIRES_POOLS

◆ CH_FACTORY_REQUIRES_HEAP

Typedef Documentation

◆ dyn_element_t

◆ dyn_list_t

◆ registered_object_t

◆ dyn_buffer_t

◆ dyn_semaphore_t

◆ dyn_mailbox_t

◆ dyn_objects_fifo_t

◆ dyn_pipe_t

◆ objects_factory_t

Function Documentation

◆ copy_name()

◆ dyn_list_init()

◆ dyn_list_find()

◆ dyn_list_find_prev()

◆ dyn_list_unlink()

◆ dyn_create_object_heap()

◆ dyn_release_object_heap()

◆ dyn_create_object_pool()

◆ dyn_release_object_pool()

◆ dyn_find_object()

◆ __factory_init()

◆ chFactoryRegisterObject()

◆ chFactoryFindObject()

◆ chFactoryFindObjectByPointer()

◆ chFactoryReleaseObject()

◆ chFactoryCreateBuffer()

◆ chFactoryFindBuffer()

◆ chFactoryReleaseBuffer()

◆ chFactoryCreateSemaphore()

◆ chFactoryFindSemaphore()

◆ chFactoryReleaseSemaphore()

◆ chFactoryCreateMailbox()

◆ chFactoryFindMailbox()

◆ chFactoryReleaseMailbox()

◆ chFactoryCreateObjectsFIFO()

◆ chFactoryFindObjectsFIFO()

◆ chFactoryReleaseObjectsFIFO()

◆ chFactoryCreatePipe()

◆ chFactoryFindPipe()

◆ chFactoryReleasePipe()

◆ chFactoryDuplicateReference()

◆ chFactoryGetObject()

◆ chFactoryGetBufferSize()

◆ chFactoryGetBuffer()

◆ chFactoryGetSemaphore()

◆ chFactoryGetMailbox()

◆ chFactoryGetObjectsFIFO()

◆ chFactoryGetPipe()

Variable Documentation

◆ ch_factory