diff options
| author | winfenggao <[email protected]> | 2024-05-22 19:12:06 +0800 |
|---|---|---|
| committer | Rbb666 <[email protected]> | 2024-05-27 11:28:45 +0800 |
| commit | 80dc539698b7f40be8740edef42ff002d01b17bc (patch) | |
| tree | ed5ff0443414ef609c0182892b6df2aa9c97873c | |
| parent | 2cc2743fc73ec1645c9c84fa2d28988b5b6cbc6a (diff) | |
如果申请空间不足，申请不到合适的空间，需要回收new_rbb
| -rw-r--r-- | components/drivers/ipc/ringblk_buf.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/components/drivers/ipc/ringblk_buf.c b/components/drivers/ipc/ringblk_buf.c index ab160270c4..6196747838 100644 --- a/components/drivers/ipc/ringblk_buf.c +++ b/components/drivers/ipc/ringblk_buf.c @@ -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; } } @@ -239,6 +240,7 @@ 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; } } @@ -246,16 +248,21 @@ rt_rbb_blk_t rt_rbb_blk_alloc(rt_rbb_t rbb, rt_size_t blk_size) 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); |