get_thread_area()函式 Unix/Linux


get_thread_area - 獲取一個執行緒本地儲存(TLS)區

內容簡介

#include <linux/unistd.h> 
#include <asm/ldt.h>

int get_thread_area(struct user_desc *u_info);

 

描述

get_thread_area() returns an entry in the current thread’s Thread Local Storage (TLS) array. The index of the entry corresponds to the value of u_info->entry_number, passed in by the user. If the value is in bounds, get_thread_info copies the corresponding TLS entry into the area yiibaied to by u_info.

 

返回值

get_thread_area() returns 0 on success. Otherwise, it returns -1 and sets errno appropriately.

 

錯誤

標籤 描述
EFAULT u_info is an invalid yiibaier.
EINVAL u_info->entry_number is out of bounds.

遵循於

get_thread_area() 是Linux特有的,並應在該旨在是可移植的程式不被使用。

 

AVAILABILITY

A version of get_thread_area() first appeared in Linux 2.5.32.

 

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