I think you want to: git fetch –all -Pp where: git fetch Download objects and refs from another (remote) repository –all fetch all remotes. -P remove any remote-tracking references that no longer exist on the remote. -p remove any local tags that no longer exist on the remote. for more use git fetch –help We … Read more
MyClass.class and this are different things, they are different references to different objects. this – is a reference to this particular instance of the class, and MyClass.class – is a reference to the MyClass description object. These synchronization blocks differ in that the first will synchronize all threads that deal concretely with this instance of … Read more
Late, but better than never I thought I would add Julian Bucknalls articles to this list. But he does not have performance numbers. In my testing of his structures the list scaled well compared to locking (very low kernel usage compared to ReaderWriterLock). His blog has a series of articles on lock free structures in … Read more
Let me provide the answer to your question based on my experience related to the sync part as I don’t have enough experience with PhoneGap so will skip the question about PhoneGap local storage v SQLite. I was wondering if you could point me toward some good resources for this type of syncing. Some recommended … Read more
Stick to pthread_cond_timedwait and use clock_gettime. For example: struct timespec ts; clock_gettime(CLOCK_REALTIME, &ts); ts.tv_sec += 10; // ten seconds while (!some_condition && ret == 0) ret = pthread_cond_timedwait(&cond, &mutex, &ts); Wrap it in a function if you wish. UPDATE: complementing the answer based on our comments. POSIX doesn’t have a single API to wait for … Read more
If you just used an int or long variable then you would need synchronization – incrementing involves read / increment-locally / write, which is far from an atomic operation. (Even if the variable is volatile to avoid memory model concerns of staleness, you’d still have three distinct operations, with the possibility of being pre-empted between … Read more
You use Enter / Exit to acquire exclusive access to a lock. You use Wait / Pulse to allow co-operative notification: I want to wait for something to occur, so I enter the lock and call Wait; the notifying code will enter the lock and call Pulse. The two schemes are related, but they’re not … Read more
My question: does anybody know of a good pattern to deal with acquiring exclusive access in the presence of thread switching due to async/await? Yes, you can use AsyncLock, which is also available as part of my AsyncEx library. If you want to have a “TryLock” kind of operation, then you may have to create … Read more