Can PySerial's write method be called by multiple threads?
zapwireDASHgroups at yahoo.com
Wed Aug 25 22:24:52 CEST 2010
"John Nagle" <nagle at animats.com> wrote in message
news:4c75768a$0$1608$742ec2ed at news.sonic.net...
> You don't need a queue, though; just use your own "write" function
> with a lock.
Hmm... that would certainly work. I suppose it's even more efficient than a
queue in that the first thing the queue is going to do is to acquire a lock;
thanks for the idea!
> def atomicwrite(fd, data) :
> with lok :
Cool, I didn't know that threading.Lock() supported "with!" -- Just the other
day I was contemplating how one might go about duplicating the pattern in C++
where you do something like this:
Lock lok; // Constructor acquires lock, will be held until destructor
called (i.e., while lok remains in scope)
} // Lock released
...clearly "with" does the job here.
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