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如果空间不足，申请不到需要的空间，需要回收new_rbb #8979

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merged 1 commit into from
May 27, 2024
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如果空间不足，申请不到需要的空间，需要回收new_rbb #8979

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23 changes: 15 additions & 8 deletions components/drivers/ipc/ringblk_buf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,7 @@ rt_rbb_blk_t rt_rbb_blk_alloc(rt_rbb_t rbb, rt_size_t blk_size)
else
{
/* no space */
rt_slist_insert(&rbb->free_list, &new_rbb->list);
new_rbb = RT_NULL;
}
}
Expand All @@ -239,23 +240,29 @@ rt_rbb_blk_t rt_rbb_blk_alloc(rt_rbb_t rbb, rt_size_t blk_size)
else
{
/* no space */
rt_slist_insert(&rbb->free_list, &new_rbb->list);
new_rbb = RT_NULL;
}
}
}
else
{
/* the list is empty */
list_append(rbb, &new_rbb->list);
new_rbb->status = RT_RBB_BLK_INITED;
new_rbb->buf = rbb->buf;
new_rbb->size = blk_size;
if(blk_size <= rbb->buf_size)
{
list_append(rbb, &new_rbb->list);
new_rbb->status = RT_RBB_BLK_INITED;
new_rbb->buf = rbb->buf;
new_rbb->size = blk_size;
}
else
{
/* no space */
rt_slist_insert(&rbb->free_list, &new_rbb->list);
new_rbb = RT_NULL;
}
}
}
else
{
new_rbb = RT_NULL;
}

rt_spin_unlock_irqrestore(&(rbb->spinlock), level);

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