Python threading get_native_id()用法及代码示例

Python threading.get_native_id() 方法

get_native_id() 是 Python 中线程模块的内置方法。它用于返回内核分配的当前线程的本机线程 ID。该非负数可用于唯一标识此特定线程 system-wide；直到线程终止，之后它的值可能会被操作系统回收。它从 3.8 版开始可用。

模块：

    import threading

用法:

    get_ident()

参数：

• None

返回值：

这个方法的返回类型是<class 'int'>，它返回一个数字，作为当前线程的本地线程标识符。

例：

# Python program to explain the
# use of get_native_id()  method in Threading Module

import time
import threading

def thread_1(i):
    time.sleep(5)
    print("Native thread identifier for Thread-1:", threading.get_native_id())
    print('Value by Thread 1:', i)

def thread_2(i):
    print("Native thread identifier for Thread-2:", threading.get_native_id())
    print('Value by Thread 2:', i)
    
def thread_3(i):
    time.sleep(4)
    print("Native thread identifier for Thread-3:", threading.get_native_id())
    print("Value by Thread 3:", i)

# Creating sample threads 
thread1 = threading.Thread(target=thread_1, args=(10,))
thread2 = threading.Thread(target=thread_2, args=(20,))
thread3 = threading.Thread(target=thread_3, args=(30,))

print("Native thread identifier for main-thread:", threading.get_native_id() )

# Starting the threads
thread1.start()
thread2.start()
thread3.start()

输出

Native thread identifier for main-thread:19156
Native thread identifier for Thread-2:4296
Value by Thread 2:20
Native thread identifier for Thread-3:6776
Value by Thread 3:30
Native thread identifier for Thread-1:17312
Value by Thread 1:10