MEMKIND_EXPORT void *memkind_default_mmap(struct memkind *kind, void *addr,
size_t size)
{
void *result = MAP_FAILED;
int err = 0;
int flags;
if (kind->ops->get_mmap_flags) {
err = kind->ops->get_mmap_flags(kind, &flags);
} else {
err = memkind_default_get_mmap_flags(kind, &flags);
}
if (MEMKIND_LIKELY(!err)) {
result = mmap(addr, size, PROT_READ | PROT_WRITE, flags, -1, 0);
if (result == MAP_FAILED) {
log_err("syscall mmap() returned: %p", result);
return result;
}
}
if (kind->ops->mbind) {
err = kind->ops->mbind(kind, result, size);
if (err) {
munmap(result, size);
result = MAP_FAILED;
}
}
if (kind->ops->madvise) {
err = kind->ops->madvise(kind, result, size);
if (err) {
munmap(result, size);
result = MAP_FAILED;
}
}
return result;
}
MEMKIND_EXPORT int memkind_hbw_get_mbind_nodemask(struct memkind *kind,
unsigned long *nodemask,
unsigned long maxnode)
{
int cpu;
struct bitmask nodemask_bm = {maxnode, nodemask};
struct memkind_hbw_closest_numanode_t *g =
&memkind_hbw_closest_numanode_g;
pthread_once(&memkind_hbw_closest_numanode_once_g,
memkind_hbw_closest_numanode_init);
if (MEMKIND_LIKELY(!g->init_err && nodemask)) {
numa_bitmask_clearall(&nodemask_bm);
cpu = sched_getcpu();
if (MEMKIND_LIKELY(cpu < g->num_cpu)) {
numa_bitmask_setbit(&nodemask_bm, g->closest_numanode[cpu]);
}
else {
return MEMKIND_ERROR_RUNTIME;
}
}
return g->init_err;
}
