Collaboration diagram for Objects FIFOs:

Detailed Description

Typedefs
typedef struct ch_objects_fifo	objects_fifo_t
	Type of an objects FIFO. More...

Data Structures
struct	ch_objects_fifo
	Type of an objects FIFO. More...

Functions
static void	chFifoObjectInit (objects_fifo_t ofp, size_t objsize, size_t objn, unsigned objalign, void objbuf, msg_t *msgbuf)
	Initializes a FIFO object. More...

static void *	chFifoTakeObjectI (objects_fifo_t *ofp)
	Allocates a free object. More...

static void *	chFifoTakeObjectTimeoutS (objects_fifo_t *ofp, sysinterval_t timeout)
	Allocates a free object. More...

static void *	chFifoTakeObjectTimeout (objects_fifo_t *ofp, sysinterval_t timeout)
	Allocates a free object. More...

static void	chFifoReturnObjectI (objects_fifo_t ofp, void objp)
	Releases a fetched object. More...

static void	chFifoReturnObjectS (objects_fifo_t ofp, void objp)
	Releases a fetched object. More...

static void	chFifoReturnObject (objects_fifo_t ofp, void objp)
	Releases a fetched object. More...

static void	chFifoSendObjectI (objects_fifo_t ofp, void objp)
	Posts an object. More...

static void	chFifoSendObjectS (objects_fifo_t ofp, void objp)
	Posts an object. More...

static void	chFifoSendObject (objects_fifo_t ofp, void objp)
	Posts an object. More...

static void	chFifoSendObjectAheadI (objects_fifo_t ofp, void objp)
	Posts an high priority object. More...

static void	chFifoSendObjectAheadS (objects_fifo_t ofp, void objp)
	Posts an high priority object. More...

static void	chFifoSendObjectAhead (objects_fifo_t ofp, void objp)
	Posts an high priority object. More...

static msg_t	chFifoReceiveObjectI (objects_fifo_t ofp, void *objpp)
	Fetches an object. More...

static msg_t	chFifoReceiveObjectTimeoutS (objects_fifo_t ofp, void *objpp, sysinterval_t timeout)
	Fetches an object. More...

static msg_t	chFifoReceiveObjectTimeout (objects_fifo_t ofp, void *objpp, sysinterval_t timeout)
	Fetches an object. More...

Typedef Documentation

typedef struct ch_objects_fifo objects_fifo_t

Type of an objects FIFO.

Function Documentation

static void chFifoObjectInit	(	objects_fifo_t *	ofp,
		size_t	objsize,
		size_t	objn,
		unsigned	objalign,
		void *	objbuf,
		msg_t *	msgbuf
	)

inlinestatic

Initializes a FIFO object.

Precondition: The messages size must be a multiple of the alignment requirement.

Parameters

[out]	ofp	pointer to a `objects_fifo_t` structure
[in]	objsize	size of objects
[in]	objn	number of objects available
[in]	objalign	required objects alignment
[in]	objbuf	pointer to the buffer of objects, it must be able to hold `objn` objects of `objsize` size with `objealign` alignment
[in]	msgbuf	pointer to the buffer of messages, it must be able to hold `objn` messages

Function Class:: Initializer, this function just initializes an object and can be invoked before the kernel is initialized.

Definition at line 132 of file chfifo.h.

References chGuardedPoolLoadArray(), chGuardedPoolObjectInitAligned(), chMBObjectInit(), ch_objects_fifo::free, and ch_objects_fifo::mbx.

Referenced by chFactoryCreateObjectsFIFO().

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static void* chFifoTakeObjectI ( objects_fifo_t * ofp )

inlinestatic

Allocates a free object.

Parameters

[in] ofp pointer to a objects_fifo_t structure

Returns: The pointer to the allocated object.

Return values

NULL	if an object is not immediately available.

Function Class:: This is an I-Class API, this function can be invoked from within a system lock zone by both threads and interrupt handlers.

Definition at line 150 of file chfifo.h.

References chGuardedPoolAllocI(), and ch_objects_fifo::free.

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static void* chFifoTakeObjectTimeoutS	(	objects_fifo_t *	ofp,
		sysinterval_t	timeout
	)

inlinestatic

Allocates a free object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	timeout	the number of ticks before the operation timeouts, the following special values are allowed: TIME_IMMEDIATE immediate timeout. TIME_INFINITE no timeout.

Returns: The pointer to the allocated object.

Return values

NULL	if an object is not available within the specified timeout.

Function Class:: This is an S-Class API, this function can be invoked from within a system lock zone by threads only.

Definition at line 170 of file chfifo.h.

References chGuardedPoolAllocTimeoutS(), and ch_objects_fifo::free.

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static void* chFifoTakeObjectTimeout	(	objects_fifo_t *	ofp,
		sysinterval_t	timeout
	)

inlinestatic

Allocates a free object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	timeout	the number of ticks before the operation timeouts, the following special values are allowed: TIME_IMMEDIATE immediate timeout. TIME_INFINITE no timeout.

Returns: The pointer to the allocated object.

Return values

NULL	if an object is not available within the specified timeout.

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

Definition at line 191 of file chfifo.h.

References chGuardedPoolAllocTimeout(), and ch_objects_fifo::free.

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static void chFifoReturnObjectI	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Releases a fetched object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be released

Function Class:: This is an I-Class API, this function can be invoked from within a system lock zone by both threads and interrupt handlers.

Definition at line 205 of file chfifo.h.

References chGuardedPoolFreeI(), and ch_objects_fifo::free.

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static void chFifoReturnObjectS	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Releases a fetched object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be released

Function Class:: This is an S-Class API, this function can be invoked from within a system lock zone by threads only.

Definition at line 219 of file chfifo.h.

References chGuardedPoolFreeS(), and ch_objects_fifo::free.

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static void chFifoReturnObject	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Releases a fetched object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be released

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

Definition at line 233 of file chfifo.h.

References chGuardedPoolFree(), and ch_objects_fifo::free.

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static void chFifoSendObjectI	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Posts an object.

Note: By design the object can be always immediately posted.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be posted

Function Class:: This is an I-Class API, this function can be invoked from within a system lock zone by both threads and interrupt handlers.

Definition at line 248 of file chfifo.h.

References chDbgAssert, chMBPostI(), ch_objects_fifo::mbx, and MSG_OK.

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static void chFifoSendObjectS	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Posts an object.

Note: By design the object can be always immediately posted.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be posted

Function Class:: This is an S-Class API, this function can be invoked from within a system lock zone by threads only.

Definition at line 265 of file chfifo.h.

References chDbgAssert, chMBPostTimeoutS(), ch_objects_fifo::mbx, MSG_OK, and TIME_IMMEDIATE.

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static void chFifoSendObject	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Posts an object.

Note: By design the object can be always immediately posted.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be released

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

Definition at line 282 of file chfifo.h.

References chDbgAssert, chMBPostTimeout(), ch_objects_fifo::mbx, MSG_OK, and TIME_IMMEDIATE.

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static void chFifoSendObjectAheadI	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Posts an high priority object.

Note: By design the object can be always immediately posted.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be posted

Function Class:: This is an I-Class API, this function can be invoked from within a system lock zone by both threads and interrupt handlers.

Definition at line 299 of file chfifo.h.

References chDbgAssert, chMBPostAheadI(), ch_objects_fifo::mbx, and MSG_OK.

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static void chFifoSendObjectAheadS	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Posts an high priority object.

Note: By design the object can be always immediately posted.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be posted

Function Class:: This is an S-Class API, this function can be invoked from within a system lock zone by threads only.

Definition at line 316 of file chfifo.h.

References chDbgAssert, chMBPostAheadTimeoutS(), ch_objects_fifo::mbx, MSG_OK, and TIME_IMMEDIATE.

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static void chFifoSendObjectAhead	(	objects_fifo_t *	ofp,
		void *	objp
	)

inlinestatic

Posts an high priority object.

Note: By design the object can be always immediately posted.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objp	pointer to the object to be released

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

Definition at line 333 of file chfifo.h.

References chDbgAssert, chMBPostAheadTimeout(), ch_objects_fifo::mbx, MSG_OK, and TIME_IMMEDIATE.

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static msg_t chFifoReceiveObjectI	(	objects_fifo_t *	ofp,
		void **	objpp
	)

inlinestatic

Fetches an object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objpp	pointer to the fetched object reference

Returns: The operation status.

Return values

MSG_OK	if an object has been correctly fetched.
MSG_TIMEOUT	if the FIFO is empty and a message cannot be fetched.

Function Class:: This is an I-Class API, this function can be invoked from within a system lock zone by both threads and interrupt handlers.

Definition at line 352 of file chfifo.h.

References chMBFetchI(), and ch_objects_fifo::mbx.

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static msg_t chFifoReceiveObjectTimeoutS	(	objects_fifo_t *	ofp,
		void **	objpp,
		sysinterval_t	timeout
	)

inlinestatic

Fetches an object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objpp	pointer to the fetched object reference
[in]	timeout	the number of ticks before the operation timeouts, the following special values are allowed: TIME_IMMEDIATE immediate timeout. TIME_INFINITE no timeout.

Returns: The operation status.

Return values

MSG_OK	if an object has been correctly fetched.
MSG_TIMEOUT	if the operation has timed out.

Function Class:: This is an S-Class API, this function can be invoked from within a system lock zone by threads only.

Definition at line 374 of file chfifo.h.

References chMBFetchTimeoutS(), and ch_objects_fifo::mbx.

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static msg_t chFifoReceiveObjectTimeout	(	objects_fifo_t *	ofp,
		void **	objpp,
		sysinterval_t	timeout
	)

inlinestatic

Fetches an object.

Parameters

[in]	ofp	pointer to a `objects_fifo_t` structure
[in]	objpp	pointer to the fetched object reference
[in]	timeout	the number of ticks before the operation timeouts, the following special values are allowed: TIME_IMMEDIATE immediate timeout. TIME_INFINITE no timeout.

Returns: The operation status.

Return values

MSG_OK	if an object has been correctly fetched.
MSG_TIMEOUT	if the operation has timed out.

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

Definition at line 397 of file chfifo.h.

References chMBFetchTimeout(), and ch_objects_fifo::mbx.

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Detailed Description

Typedefs

Data Structures

Functions

Typedef Documentation

Function Documentation