On 08/24/2015 04:06 PM, Kyle Harper wrote: > I understand that double-free()ing is a fatal access violate, however > this shouldn't be happening in the first place. I am using pthread > primitives (mutexes) to guard the critical section wherein I first > free, then set to NULL the pointer that both threads are looking at. > The first thread to reach the critical section should (and does) > free() and NULL, then asserts that *buf == NULL. The second thread to > reach the critical section should return without performing any action > because of the if(*buf == NULL).... section, but it doesn't. No, you're not. In the example you just posted only one buffer is ever allocated and you free it twice. Andrew.
