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sched/mqueue/mq_desclose.c: Add a test to verify that message queue is closed by the same task group that opened it. If not, then list corruption would result. This test is only performed if CONFIG_DEBUG_FEATURES is enabled since it should not normally be an issue: It would be a strange programming practice to open a message queue in open task group, then close it in another.

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김정찬
2019-08-05 18:30:07 -06:00
committed by Gregory Nutt
parent 721994846c
commit a12f80fb90
3 changed files with 48 additions and 12 deletions
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fs/mqueue/mq_close.c
+11 -7
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@@ -77,6 +77,7 @@ int nxmq_close_group(mqd_t mqdes, FAR struct task_group_s *group)
{
FAR struct mqueue_inode_s *msgq;
FAR struct inode *inode;
int ret = OK;
DEBUGASSERT(mqdes != NULL && group != NULL);
@@ -93,20 +94,23 @@ int nxmq_close_group(mqd_t mqdes, FAR struct task_group_s *group)
/* Close/free the message descriptor */
nxmq_desclose_group(mqdes, group);
ret = nxmq_desclose_group(mqdes, group);
if (ret >= 0)
{
/* Get the inode from the message queue structure */
/* Get the inode from the message queue structure */
inode = msgq->inode;
DEBUGASSERT(inode->u.i_mqueue == msgq);
inode = msgq->inode;
DEBUGASSERT(inode->u.i_mqueue == msgq);
/* Decrement the reference count on the inode, possibly freeing it */
/* Decrement the reference count on the inode, possibly freeing it */
mq_inode_release(inode);
}
mq_inode_release(inode);
sched_unlock();
}
return OK;
return ret;
}
/****************************************************************************