led.value(1) utime.sleep(2)print('---Pr - 1 -结束---')defmain():print('---所有线程开始执行---')#创建互斥锁gLock = _thread.allocate_lock()#获得互斥锁gLock.acquire()#创建线程1_thread.start_new_thread(Process1,())#休眠utime.sleep(5)#释放互斥锁gLock.release()print('---主程序...
_thread.start_new_thread(function, args[, kwargs]):开启一个新线程 _thread.allocate_lock():返回一个新的锁对象 lock.acquire(blocking=True, timeout=- 1):申请获得锁 lock.release():释放锁 本文中所有的实例代码,都可以从以下地址获取: Pico(RP2040)上的MicroPython环境中多线程编程https://gitee.com...
sLock = _thread.allocate_lock() 在上面的代码中,我使用“Pin(16, machine.Pin.OUT)”和“Pin(15, machine.Pin.OUT)”函数将 GPIO15 和 GPIO16 的两个 LED 初始化为 OUPUT 。“_thread.allocate_lock()”函数可用于为两个线程提供信号量锁。如果想详细了解这个函数,可以参考“_thread”库的文档。 定义...
_thread.start_new_thread(function, args[, kwargs]):启动一个新线程并返回其标识符。线程使用参数列表args(必须是元组)执行指定的函数。可选的kwargs参数指定关键字参数的字典。 _thread.allocate_lock():分配一个新的锁对象,用于线程同步。 lock.acquire()和lock.release():分别用于获取和释放锁。4...
lock = _thread.allocate_lock()semp = _thread.allocate_semephare()定义4个用户线程，分别是信号量...
3. _thread.allocate_lock():创建一个互斥锁对象,初始状态为解锁。 import _thread lock = _thread.allocate_lock() lock.acquire() #获取锁 #执行一些操作... lock.release() #释放锁 这些是_thread模块中一些基本的使用方法。需要注意的是,MicroPython中的线程实现可能与其他Python版本有所不同,具体细节和API...
self.enable=Trueself.lock=_thread.allocate_lock()self.stop_lock=_thread.allocate_lock()self.lock.acquire()self.stop_lock.acquire()_thread.start_new_thread(self.__run,())def__run(self):"""# 请勿调用*线程运行函数"""whileTrue:self.lock.acquire()try:self.func(*self.args,**self.kwargs...
These functions can be nested, ie heap_lock() can be called multiple times in a row and the lock-depth will increase, and then heap_unlock() must be called the same number of times to make the heap available again. Both heap_unlock() and heap_locked() return the current lock depth ...
QDEF(MP_QSTR_allocate_lock, (const byte*)"\xec\x0d" "allocate_lock") QDEF(MP_QSTR_UART, (const byte*)"\xb7\x04" "UART") QDEF(MP_QSTR_writechar, (const byte*)"\x40\x09" "writechar") QDEF(MP_QSTR_readchar, (const byte*)"\xef\x08" "readchar") QDEF(MP_QSTR_sendbreak, (...
MicroPython has a global interpreter lock (GIL), so no other code may access the Python heap whilearray_subscr()is executing. Therefore, no other code can allocate from the Python heap at this time. Andarray_subscr()doesn't perform any additional heap operation. ...