On Sat, 11 Jul 2009 15:42:19 +0530, "jjoohhnn"
I have ProcessA and ProcessB. Codes are different in these two
processes. Now, these two are trying to update database. So, I tried
synchronize the database operations by using CMutex. But, it's failing at
CSingleLock(&mutex, TRUE) that time database was not locked by any other
Is is correct approach?
If you have actually written:
Then that creates a temporary object that is immediately destroyed and is
incorrect. You need to use an actual variable:
CSingleLock lk(&mutex, TRUE);
The lock will be released when lk is destroyed. Another way to mess this up
is to write:
MS actually defaults the "acquire lock" argument to FALSE. If none of this
seems to apply, the only other thing I can think of is to verify the mutex
is being created/opened correctly in both processes.
Is there any better solution than this?
See what Alex said.
Visual C++ MVP
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