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Add notes from Aug. 30's lecture #1

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6 changes: 6 additions & 0 deletions ch2/threads_v0.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
global count
count = 0

# This argument is used to tell the thread how many iters to go, e.g. 1000
itersPerThread = int(argv[1])

threadNum = 0
Expand All @@ -17,6 +18,9 @@ def __init__(self, iters):
Thread.__init__(self, name="Thread-%d" % threadNum);
threadNum += 1
self.iters = iters
# Calling run creates a new virtual machine
# That virtual machine doesn't start running until I tell the thread to start
# Once it stops the virtual machine is destroyed
def run(self):
global count
for i in range(self.iters):
Expand All @@ -29,6 +33,8 @@ def delay(sec):

workers = [Worker(itersPerThread).start(), Worker(itersPerThread).start()]

# Enumerate is a method of the Thread class. It returns a list of threads that are
# still running
while len(enumerate()) > 1:
delay(0.25)
print("activeThreads=%s, count=%d" % (enumerate(), count))
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