interlockedexchange 1789 src/utils/dlmalloc.c if (!interlockedexchange(&sl->l, 1)) { interlockedexchange 1806 src/utils/dlmalloc.c interlockedexchange (&sl->l, 0); interlockedexchange 1818 src/utils/dlmalloc.c if (!interlockedexchange(&sl->l, 1)) { interlockedexchange 1886 src/utils/dlmalloc.c interlockedexchange(&malloc_global_mutex_status,1);