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Show First 20 Lines • Show All 249 Lines • ▼ Show 20 Lines	void *PosixLockedPageAllocator::AllocateLocked(size_t len,
len = align_up(len, page_size);		len = align_up(len, page_size);
addr = mmap(nullptr, len, PROT_READ \| PROT_WRITE,		addr = mmap(nullptr, len, PROT_READ \| PROT_WRITE,
MAP_PRIVATE \| MAP_ANONYMOUS, -1, 0);		MAP_PRIVATE \| MAP_ANONYMOUS, -1, 0);
if (addr == MAP_FAILED) {		if (addr == MAP_FAILED) {
return nullptr;		return nullptr;
}		}
if (addr) {		if (addr) {
*lockingSuccess = mlock(addr, len) == 0;		*lockingSuccess = mlock(addr, len) == 0;
#ifdef MADV_DONTDUMP		#if defined(MADV_DONTDUMP) // Linux
madvise(addr, len, MADV_DONTDUMP);		madvise(addr, len, MADV_DONTDUMP);
		#elif defined(MADV_NOCORE) // FreeBSD
		madvise(addr, len, MADV_NOCORE);
#endif		#endif
}		}
return addr;		return addr;
}		}
void PosixLockedPageAllocator::FreeLocked(void *addr, size_t len) {		void PosixLockedPageAllocator::FreeLocked(void *addr, size_t len) {
len = align_up(len, page_size);		len = align_up(len, page_size);
memory_cleanse(addr, len);		memory_cleanse(addr, len);
munlock(addr, len);		munlock(addr, len);
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