GenericQueue Struct Reference

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Detailed Description

Generic I/O queue structure.

This structure represents a generic Input or Output asymmetrical queue. The queue is asymmetrical because one end is meant to be accessed from a thread context, and thus can be blocking, the other end is accessible from interrupt handlers or from within a kernel lock zone (see I-Locked and S-Locked states in System States) and is non-blocking.

Definition at line 62 of file chqueues.h.

#include <chqueues.h>

Collaboration diagram for GenericQueue:

Data Fields
ThreadsQueue	q_waiting
	Queue of waiting threads.
size_t	q_counter
	Resources counter.
uint8_t *	q_buffer
	Pointer to the queue buffer.
uint8_t *	q_top
	Pointer to the first location after the buffer.
uint8_t *	q_wrptr
	Write pointer.
uint8_t *	q_rdptr
	Read pointer.
qnotify_t	q_notify
	Data notification callback.
void *	q_link
	Application defined field.

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Field Documentation

ThreadsQueue GenericQueue::q_waiting

Queue of waiting threads.

Definition at line 63 of file chqueues.h.

Referenced by chIQInit(), chIQPutI(), chIQResetI(), chOQGetI(), chOQInit(), and chOQResetI().

size_t GenericQueue::q_counter

Resources counter.

Definition at line 64 of file chqueues.h.

Referenced by chIQGetTimeout(), chIQInit(), chIQPutI(), chIQReadTimeout(), chIQResetI(), chOQGetI(), chOQInit(), chOQPutTimeout(), chOQResetI(), and chOQWriteTimeout().

uint8_t* GenericQueue::q_buffer

Pointer to the queue buffer.

Definition at line 65 of file chqueues.h.

Referenced by chIQGetTimeout(), chIQInit(), chIQPutI(), chIQReadTimeout(), chIQResetI(), chOQGetI(), chOQInit(), chOQPutTimeout(), chOQResetI(), and chOQWriteTimeout().

uint8_t* GenericQueue::q_top

Pointer to the first location after the buffer.

Definition at line 66 of file chqueues.h.

Referenced by chIQGetTimeout(), chIQInit(), chIQPutI(), chIQReadTimeout(), chOQGetI(), chOQInit(), chOQPutTimeout(), and chOQWriteTimeout().

uint8_t* GenericQueue::q_wrptr

Write pointer.

Definition at line 68 of file chqueues.h.

Referenced by chIQInit(), chIQPutI(), chIQResetI(), chOQInit(), chOQPutTimeout(), chOQResetI(), and chOQWriteTimeout().

uint8_t* GenericQueue::q_rdptr

Read pointer.

Definition at line 69 of file chqueues.h.

Referenced by chIQGetTimeout(), chIQInit(), chIQReadTimeout(), chIQResetI(), chOQGetI(), chOQInit(), and chOQResetI().

qnotify_t GenericQueue::q_notify

Data notification callback.

Definition at line 70 of file chqueues.h.

Referenced by chIQGetTimeout(), chIQInit(), chIQReadTimeout(), chOQInit(), chOQPutTimeout(), and chOQWriteTimeout().

void* GenericQueue::q_link

Application defined field.

Definition at line 71 of file chqueues.h.

Referenced by chIQInit(), and chOQInit().