Could you show some code, perhaps we can spot the point you're going wrong.

On Friday, 30 December 2016 05:43:19 UTC+11, Eric Brown wrote:
>
> Thanks Val, I actually tried that approach... and failed.  Perhaps I 
> incorporated it wrong.  I put the handling of locking/unlocking of the 
> map[string]*sync.Mutex in it's own function, which was encapsulated in the 
> global mutex like you suggested.  Only problem was, was that the database 
> function ran once... because when it went to call the function that handled 
> the unlocking of the map[string]*sync.Mutex, it was already locked by a 
> previous goroutine trying to lock the map[string]*sync.Mutex.
>
> Hahaha... I hope I made sense.  My brain is hurting here.  It doesn't help 
> that I'm fairly new to this type of stuff in Go.  Appreciate you 
> assistance, however.  Thank you!
>
>
>
> On Thursday, December 29, 2016 at 1:28:34 AM UTC-6, Val wrote:
>>
>> Hello Eric
>> You may use a map[string]*sync.Mutex where key is the DB filepath, and 
>> protect that map with a global mutex.
>>
>> Note that a mutex value must not be copied, often it is necessary to use 
>> pointers.
>>
>

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