Many people think that atomic operations are cheap However, it is not neccessarily true, since atomic operation is a generalization There are 3 basic types of atomic operations Using hibernate jpa and spring @transactional (with atomikos jta implementation) i have the following entities in my system Order orderline (holds a reference to the order) customer in a service c. When atomic operations aren't used it needs to use e.g
A mutex to simulate it, which is much slower Your node type only holds an int and a bool, so you could use std::atomic<int> and treat the high order bit as the hastransaction flag via bitwise arithmetic This would also drop the size of a node from 8 bytes to 4 bytes. One should focus in creating an atomic commit Which means that it's necessary to take some extra care in a few things for a commit It shouldn't have any value if done partly it shouldn't break the build it should contain a good message and body for traceability (with tickets reference whenever possible)
Are there any better alternatives Typedef struct { uintptr_t low Also, use atomic_flag_test_and_set() instead of my custom atomic_test_and_set() above, and use atomic_flag_clear() to clear or unset the flag What is a safe way to initialize an std::atomic_flag in a class constructor How do i initialise an atomic_flag variable if it is a member of a class
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