32 lines
596 B
Python
32 lines
596 B
Python
|
# Test accuracy of sleep within a thread.
|
||
|
|
|
||
|
|
import time
|
||
|
|
import _thread
|
||
|
|
|
||
|
|
|
||
|
|
def sleep(t, valid_range):
|
||
|
|
t0 = time.time_ns()
|
||
|
|
time.sleep(t)
|
||
|
|
dt_ms = (time.time_ns() - t0) // 1_000_000
|
||
|
|
if dt_ms in valid_range:
|
||
|
|
print("dt in range", t)
|
||
|
|
else:
|
||
|
|
print("dt not in range:", dt_ms)
|
||
|
|
|
||
|
|
|
||
|
|
def thread_entry():
|
||
|
|
lock.acquire()
|
||
|
|
print("thread start")
|
||
|
|
sleep(0.2, range(180, 400))
|
||
|
|
print("thread end")
|
||
|
|
|
||
|
|
|
||
|
|
lock = _thread.allocate_lock()
|
||
|
|
lock.acquire()
|
||
|
|
_thread.start_new_thread(thread_entry, ())
|
||
|
|
|
||
|
|
print("main start")
|
||
|
|
lock.release()
|
||
|
|
sleep(0.5, range(480, 800))
|
||
|
|
print("main end")
|