ipc_obtain_object

函数名称：pc_obtain_object_idr*@ids: ipc identifier set*@id: ipc id to look for* Look for an id in the ipc ids idr and return associated ipc object.* Call inside the RCU critical section.* The ipc object is *not* locked on exit.

函数原型：struct kern_ipc_perm *ipc_obtain_object_idr(struct ipc_ids *ids, int id)

返回类型：struct kern_ipc_perm

参数：

类型	参数	名称
struct ipc_ids *	ids
int	id

596

idx等于ipcid_to_idx(id)

598

out等于dr_find() - Return pointer for given ID

599

如果非out则返回:错误号

602

返回:out

**调用者**
名称	描述
ipc_obtain_object_check	pc_obtain_object_check@ids: ipc identifier set@id: ipc id to look for* Similar to ipc_obtain_object_idr() but also checks the ipc object* sequence number.* Call inside the RCU critical section.* The ipc object is not locked on exit.
msq_obtain_object
sem_obtain_object	sem_lock_(check_) routines are called in the paths where the rwsem* is not held.* The caller holds the RCU read lock.
shm_obtain_object
shm_lock	shm_lock_(check_) routines are called in the paths where the rwsem* is not necessarily held.

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告