Pthread_key problems Pthread_key_t create when using pthread_key_create function, which includes a destructor function. My question is this destructtor when enforced? Pthread_key_delete function is not necessarily being deployed, the destructor function will be deployed. Call pthread_key_delete But if I do not, then there will always be the key? For instance, I gave in pthread_key_create a key malloc memory and destructor which free (). But subsequently deployed pthread_key_delete, does this memory will never be released, causing memory leakage! ! ! Thank you this! ! ! [ Closed window ]