函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:ipc\msg.c Create Date:2022-07-27 18:17:23
Last Modify:2020-03-17 22:56:56 Copyright©Brick
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函数名称：pipelined_send

函数原型：static inline int pipelined_send(struct msg_queue *msq, struct msg_msg *msg, struct wake_q_head *wake_q)

返回类型：int

参数：

类型参数名称
struct msg_queue *msq
struct msg_msg *msg
struct wake_q_head *wake_q
795  如果testmsg(msg, r_msgtype, r_mode)且非security_msg_queue_msgrcv( & q_perm, msg, r_tsk, r_msgtype, r_mode)则
799  删除链表项
800  如果r_maxsize小于message text size 则
801  wake_q_add() - queue a wakeup for 'later' waking
802  WRITE_ONCE(r_msg, 错误号)
803  否则
804  ipc_update_pid( & last receive pid , task_pid(r_tsk))
805  last msgrcv time 等于ktime_get_real_seconds - Get the seconds portion of CLOCK_REALTIME* Returns the wall clock seconds since 1970. This replaces the* get_seconds() interface which is not y2038 safe on 32bit systems.
807  wake_q_add() - queue a wakeup for 'later' waking
808  WRITE_ONCE(r_msg, msg)
809  返回:1
814  返回:0
调用者
名称描述
do_msgsnd