Python threading get_native_id()用法及代碼示例

Python threading.get_native_id() 方法

get_native_id() 是 Python 中線程模塊的內置方法。它用於返回內核分配的當前線程的本機線程 ID。該非負數可用於唯一標識此特定線程 system-wide；直到線程終止，之後它的值可能會被操作係統回收。它從 3.8 版開始可用。

模塊：

    import threading

用法:

    get_ident()

參數：

• None

返回值：

這個方法的返回類型是<class 'int'>，它返回一個數字，作為當前線程的本地線程標識符。

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()

輸出

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