message.c File Reference

#include <asm.h>
#include <stdlib.h>
#include <lwp_messages.h>
#include <lwp_objmgr.h>
#include <lwp_config.h>
#include "message.h"

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Classes
struct	_mqbox_st

Macros
#define	LWP_OBJTYPE_MBOX   6
#define	LWP_CHECK_MBOX(hndl)

Typedefs
typedef struct _mqbox_st	mqbox_st

Functions
void	__lwp_mqbox_init ()
static __inline__ mqbox_st *	__lwp_mqbox_open (mqbox_t mbox)
static __inline__ void	__lwp_mqbox_free (mqbox_st *mqbox)
static mqbox_st *	__lwp_mqbox_allocate ()
s32	MQ_Init (mqbox_t *mqbox, u32 count)
	Initializes a message queue. More...
void	MQ_Close (mqbox_t mqbox)
	Closes the message queue and releases all memory. More...
BOOL	MQ_Send (mqbox_t mqbox, mqmsg_t msg, u32 flags)
	Sends a message to the given message queue. More...
BOOL	MQ_Receive (mqbox_t mqbox, mqmsg_t *msg, u32 flags)
	Sends a message to the given message queue. More...
BOOL	MQ_Jam (mqbox_t mqbox, mqmsg_t msg, u32 flags)
	Sends a message to the given message queue and jams it in front of the queue. More...

Variables
lwp_objinfo	_lwp_mqbox_objects

Macro Definition Documentation

LWP_CHECK_MBOX

#define LWP_CHECK_MBOX

(

hndl

)

Value:

{                                   \
    if(((hndl)==MQ_BOX_NULL) || (LWP_OBJTYPE(hndl)!=LWP_OBJTYPE_MBOX))  \
        return NULL;                \
}

LWP_OBJTYPE_MBOX

#define LWP_OBJTYPE_MBOX   6

Typedef Documentation

mqbox_st

typedef struct _mqbox_st mqbox_st

Function Documentation

__lwp_mqbox_allocate()

static mqbox_st* __lwp_mqbox_allocate ( )

static

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__lwp_mqbox_free()

static __inline__ void __lwp_mqbox_free ( mqbox_st *  mqbox )

static

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__lwp_mqbox_init()

void __lwp_mqbox_init

(

void

)

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__lwp_mqbox_open()

static __inline__ mqbox_st* __lwp_mqbox_open ( mqbox_t  mbox )

static

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MQ_Close()

void MQ_Close

(

mqbox_t

mqbox

)

Closes the message queue and releases all memory.

Parameters

[in]

mqbox

handle to the mqbox_t structure.

Returns

none

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MQ_Init()

s32 MQ_Init	(	mqbox_t *	mqbox,
		u32	count
	)

Initializes a message queue.

Parameters

[out]	mqbox	pointer to the mqbox_t handle.
[in]	count	maximum number of messages the queue can hold

Returns

0 on success, <0 on error

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MQ_Jam()

BOOL MQ_Jam	(	mqbox_t	mqbox,
		mqmsg_t	msg,
		u32	flags
	)

Sends a message to the given message queue and jams it in front of the queue.

Parameters

[in]	mqbox	mqbox_t handle to the message queue
[in]	msg	message to send
[in]	flags	message flags (MQ_MSG_BLOCK, MQ_MSG_NOBLOCK)

Returns

bool result

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MQ_Receive()

BOOL MQ_Receive	(	mqbox_t	mqbox,
		mqmsg_t *	msg,
		u32	flags
	)

Sends a message to the given message queue.

Parameters

[in]	mqbox	mqbox_t handle to the message queue
[in]	msg	pointer to a mqmsg_t_t-type message to receive.
[in]	flags	message flags (MQ_MSG_BLOCK, MQ_MSG_NOBLOCK)

Returns

bool result

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MQ_Send()

BOOL MQ_Send	(	mqbox_t	mqbox,
		mqmsg_t	msg,
		u32	flags
	)

Sends a message to the given message queue.

Parameters

[in]	mqbox	mqbox_t handle to the message queue
[in]	msg	message to send
[in]	flags	message flags (MQ_MSG_BLOCK, MQ_MSG_NOBLOCK)

Returns

bool result

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Variable Documentation

_lwp_mqbox_objects

lwp_objinfo _lwp_mqbox_objects