19 #if !defined(USE_JEMALLOC) && !defined(FOLLY_USE_JEMALLOC) 20 #if defined(__APPLE__) && !defined(FOLLY_HAVE_MALLOC_USABLE_SIZE) 21 #include <malloc/malloc.h> 23 extern "C" size_t malloc_usable_size(
void*
ptr) {
24 return malloc_size(ptr);
27 extern "C" size_t malloc_usable_size(
void*
addr) {
ThreadPoolListHook * addr