int rb_put(RingBuffer * f, uchar8 d)
{
if(rb_full(f))
return 0;
f->buffer[f->wr_idx++]=d;
f->wr_idx %= MAXSIZE;
f->size++;
return 1;
}
/**
* @brief Test if UART buffer if full.
*/
int rakmgr_uartbuf_full(void)
{
int full;
rakmgr_uartbuf_lock();
full = rb_full(&uartbuf);
rakmgr_uartbuf_unlock();
return full;
}
uint32_t
rb_write(ring_t* rb, uint8_t *data, uint32_t size)
{
if (rb == NULL || rb->buffer_start == NULL || size <= 0)
return 0;
if (1 == rb_full(rb))
return 0;
else
{
rb->write_calls++;//debug
int32_t avaiable_space = rb_free_space(rb);
if ( avaiable_space >= size)
{
memcpy(rb->head, data, size);
rb->head = (rb->head + size);
if (rb->head == rb->buffer_end)
{
rb->head = rb->buffer_start;
rb->round_complete = 1;
}
return size;
}
else if (avaiable_space >= size)
{
uint32_t remaining_size = (rb->buffer_end - rb->head);
memcpy(rb->head, data, remaining_size);
rb->head = rb->buffer_start;
uint32_t missing_size = size - remaining_size;
if (missing_size <= 0)
return 0;
memcpy(rb->head, (data + remaining_size), missing_size);
rb->head = (rb->head + missing_size);
rb->round_complete = 1;
return size;
}
else
LOG_PRINT("rb_write:No more available memory! You must abort!\n");
}
return 0;
}