interlockedexchange 1838 compat/nedmalloc/malloc.c.h if (!interlockedexchange(&sl->l, 1)) { interlockedexchange 1856 compat/nedmalloc/malloc.c.h interlockedexchange (&sl->l, 0); interlockedexchange 1868 compat/nedmalloc/malloc.c.h if (!interlockedexchange(&sl->l, 1)){ interlockedexchange 1936 compat/nedmalloc/malloc.c.h interlockedexchange(&malloc_global_mutex_status,1);