Hi,
I have a piece of software which uses threads in very massive way - like
hundreds of them generated every second.
there is also a piece of code which maintains the number of outstanding
threads, simply
counter+=1 is executed when before starting the thread and counter-=1
after it finishes.
all is very simple and by the end of the program life I expect the
counter to zero out.
however I am getting values -1, -2, 1 ,2 ,3 and quite often 0 as expected.
I guarded those statement with Lock.{acquire,release} and now it always
returns 0.
But I still can not believe that +=1 is not a thread safe operation.
Any clue?
--
Andy
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