Function report |
Source Code:ipc\msg.c |
Create Date:2022-07-28 16:41:18 |
Last Modify:2020-03-17 22:56:56 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:expunge_all
Proto:static void expunge_all(struct msg_queue *msq, int res, struct wake_q_head *wake_q)
Type:void
Parameter:
Type | Parameter | Name |
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struct msg_queue * | msq | |
int | res | |
struct wake_q_head * | wake_q |
241 | WRITE_ONCE(r_msg, ERR_PTR(res)) |
Name | Describe |
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freeque | que() wakes up waiters on the sender and receiver waiting queue,* removes the message queue from message queue ID IDR, and cleans up all the* messages associated with this queue.* msg_ids.rwsem (writer) and the spinlock for this message queue are held |
msgctl_down | This function handles some msgctl commands which require the rwsem* to be held in write mode.* NOTE: no locks must be held, the rwsem is taken inside this function. |
Source code conversion tool public plug-in interface | X |
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