Detailed Description

Collaboration diagram for Jobs Queues:

Data Structures
struct	ch_jobs_queue
	Type of a jobs queue. More...
struct	ch_job_descriptor
	Type of a job descriptor. More...

Macros
#define	MSG_JOB_NULL ((msg_t)-3)
	Dispatcher return code in case of a `JOB_NULL` has been received.

Typedefs
typedef struct ch_jobs_queue	jobs_queue_t
	Type of a jobs queue.
typedef void(*	job_function_t) (void *arg)
	Type of a job function.
typedef struct ch_job_descriptor	job_descriptor_t
	Type of a job descriptor.

Functions
static void	chJobObjectInit (jobs_queue_t jqp, size_t jobsn, job_descriptor_t jobsbuf, msg_t *msgbuf)
	Initializes a jobs queue object.
static job_descriptor_t *	chJobGet (jobs_queue_t *jqp)
	Allocates a free job object.
static job_descriptor_t *	chJobGetI (jobs_queue_t *jqp)
	Allocates a free job object.
static job_descriptor_t *	chJobGetTimeoutS (jobs_queue_t *jqp, sysinterval_t timeout)
	Allocates a free job object.
static job_descriptor_t *	chJobGetTimeout (jobs_queue_t *jqp, sysinterval_t timeout)
	Allocates a free job object.
static void	chJobPostI (jobs_queue_t jqp, job_descriptor_t jp)
	Posts a job object.
static void	chJobPostS (jobs_queue_t jqp, job_descriptor_t jp)
	Posts a job object.
static void	chJobPost (jobs_queue_t jqp, job_descriptor_t jp)
	Posts a job object.
static void	chJobPostAheadI (jobs_queue_t jqp, job_descriptor_t jp)
	Posts an high priority job object.
static void	chJobPostAheadS (jobs_queue_t jqp, job_descriptor_t jp)
	Posts an high priority job object.
static void	chJobPostAhead (jobs_queue_t jqp, job_descriptor_t jp)
	Posts an high priority job object.
static msg_t	chJobDispatch (jobs_queue_t *jqp)
	Waits for a job then executes it.
static msg_t	chJobDispatchTimeout (jobs_queue_t *jqp, sysinterval_t timeout)
	Waits for a job then executes it.

Macro Definition Documentation

◆ MSG_JOB_NULL

#define MSG_JOB_NULL ((msg_t)-3)

Dispatcher return code in case of a JOB_NULL has been received.

Definition at line 47 of file chjobs.h.

Referenced by chJobDispatch(), and chJobDispatchTimeout().

Typedef Documentation

◆ jobs_queue_t

typedef struct ch_jobs_queue jobs_queue_t

Type of a jobs queue.

◆ job_function_t

typedef void(* job_function_t) (void *arg)

Type of a job function.

Definition at line 90 of file chjobs.h.

◆ job_descriptor_t

typedef struct ch_job_descriptor job_descriptor_t

Type of a job descriptor.

Function Documentation

◆ chJobObjectInit()

void chJobObjectInit	(	jobs_queue_t *	jqp,
		size_t	jobsn,
		job_descriptor_t *	jobsbuf,
		msg_t *	msgbuf )

inlinestatic

Initializes a jobs queue object.

Parameters

[out]	jqp	pointer to a `jobs_queue_t` structure
[in]	jobsn	number of jobs available
[in]	jobsbuf	pointer to the buffer of jobs, it must be able to hold `jobsn` `job_descriptor_t` structures
[in]	msgbuf	pointer to the buffer of messages, it must be able to hold `jobsn` `msg_t` messages

Function Class:: Object or module nitializer function.

Definition at line 138 of file chjobs.h.

References chDbgCheck, chGuardedPoolLoadArray(), chGuardedPoolObjectInit(), chMBObjectInit(), ch_jobs_queue::free, and ch_jobs_queue::mbx.

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◆ chJobGet()

job_descriptor_t * chJobGet ( jobs_queue_t * jqp )

inlinestatic

Allocates a free job object.

Parameters

[in] jqp pointer to a jobs_queue_t structure

Returns: The pointer to the allocated job object.

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

Definition at line 158 of file chjobs.h.

References chGuardedPoolAllocTimeout(), ch_jobs_queue::free, and TIME_INFINITE.

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◆ chJobGetI()

job_descriptor_t * chJobGetI ( jobs_queue_t * jqp )

inlinestatic

Allocates a free job object.

Parameters

[in] jqp pointer to a jobs_queue_t structure

Returns: The pointer to the allocated job object.

Return values

NULL	if a job 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 172 of file chjobs.h.

References chGuardedPoolAllocI(), and ch_jobs_queue::free.

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◆ chJobGetTimeoutS()

job_descriptor_t * chJobGetTimeoutS	(	jobs_queue_t *	jqp,
		sysinterval_t	timeout )

inlinestatic

Allocates a free job object.

Parameters

[in]	jqp	pointer to a `jobs_queue_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 job object.

Return values

NULL	if a job 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 192 of file chjobs.h.

References chGuardedPoolAllocTimeoutS(), and ch_jobs_queue::free.

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◆ chJobGetTimeout()

job_descriptor_t * chJobGetTimeout	(	jobs_queue_t *	jqp,
		sysinterval_t	timeout )

inlinestatic

Allocates a free job object.

Parameters

[in]	jqp	pointer to a `jobs_queue_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 job object.

Return values

NULL	if a job 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 213 of file chjobs.h.

References chGuardedPoolAllocTimeout(), and ch_jobs_queue::free.

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◆ chJobPostI()

void chJobPostI	(	jobs_queue_t *	jqp,
		job_descriptor_t *	jp )

inlinestatic

Posts a job object.

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

Parameters

[in]	jqp	pointer to a `jobs_queue_t` structure
[in]	jp	pointer to the job 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 228 of file chjobs.h.

References chDbgAssert, chDbgCheck, chMBPostI(), ch_jobs_queue::mbx, and MSG_OK.

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◆ chJobPostS()

void chJobPostS	(	jobs_queue_t *	jqp,
		job_descriptor_t *	jp )

inlinestatic

Posts a job object.

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

Parameters

[in]	jqp	pointer to a `jobs_queue_t` structure
[in]	jp	pointer to the job 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 246 of file chjobs.h.

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

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◆ chJobPost()

void chJobPost	(	jobs_queue_t *	jqp,
		job_descriptor_t *	jp )

inlinestatic

Posts a job object.

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

Parameters

[in]	jqp	pointer to a `jobs_queue_t` structure
[in]	jp	pointer to the job object to be posted

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

Definition at line 264 of file chjobs.h.

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

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◆ chJobPostAheadI()

void chJobPostAheadI	(	jobs_queue_t *	jqp,
		job_descriptor_t *	jp )

inlinestatic

Posts an high priority job object.

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

Parameters

[in]	jqp	pointer to a `jobs_queue_t` structure
[in]	jp	pointer to the job 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 282 of file chjobs.h.

References chDbgAssert, chDbgCheck, chMBPostAheadI(), ch_jobs_queue::mbx, and MSG_OK.

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◆ chJobPostAheadS()

void chJobPostAheadS	(	jobs_queue_t *	jqp,
		job_descriptor_t *	jp )

inlinestatic

Posts an high priority job object.

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

Parameters

[in]	jqp	pointer to a `jobs_queue_t` structure
[in]	jp	pointer to the job 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 300 of file chjobs.h.

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

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◆ chJobPostAhead()

void chJobPostAhead	(	jobs_queue_t *	jqp,
		job_descriptor_t *	jp )

inlinestatic

Posts an high priority job object.

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

Parameters

[in]	jqp	pointer to a `jobs_queue_t` structure
[in]	jp	pointer to the job object to be posted

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

Definition at line 318 of file chjobs.h.

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

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◆ chJobDispatch()

msg_t chJobDispatch ( jobs_queue_t * jqp )

inlinestatic

Waits for a job then executes it.

Parameters

[in] jqp pointer to a jobs_queue_t structure

Returns: The function outcome.

Return values

MSG_OK	if a job has been executed.
MSG_RESET	if the internal mailbox has been reset.
MSG_JOB_NULL	if a `JOB_NULL` has been received.

Definition at line 336 of file chjobs.h.

References chDbgAssert, chGuardedPoolFree(), chMBFetchTimeout(), ch_jobs_queue::free, ch_job_descriptor::jobarg, ch_job_descriptor::jobfunc, ch_jobs_queue::mbx, MSG_JOB_NULL, MSG_OK, and TIME_INFINITE.

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◆ chJobDispatchTimeout()

msg_t chJobDispatchTimeout	(	jobs_queue_t *	jqp,
		sysinterval_t	timeout )

inlinestatic

Waits for a job then executes it.

Parameters

[in]	jqp	pointer to a `jobs_queue_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 function outcome.

Return values

MSG_OK	if a job has been executed.
MSG_TIMEOUT	if a timeout occurred.
MSG_RESET	if the internal mailbox has been reset.
MSG_JOB_NULL	if a `JOB_NULL` has been received.

Definition at line 377 of file chjobs.h.

References chDbgAssert, chGuardedPoolFree(), chMBFetchTimeout(), ch_jobs_queue::free, ch_job_descriptor::jobarg, ch_job_descriptor::jobfunc, ch_jobs_queue::mbx, MSG_JOB_NULL, and MSG_OK.

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Detailed Description

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

◆ MSG_JOB_NULL

Typedef Documentation

◆ jobs_queue_t

◆ job_function_t

◆ job_descriptor_t

Function Documentation

◆ chJobObjectInit()

◆ chJobGet()

◆ chJobGetI()

◆ chJobGetTimeoutS()

◆ chJobGetTimeout()

◆ chJobPostI()

◆ chJobPostS()

◆ chJobPost()

◆ chJobPostAheadI()

◆ chJobPostAheadS()

◆ chJobPostAhead()

◆ chJobDispatch()

◆ chJobDispatchTimeout()