Function LFPosixMemalign

library/cpp/lfalloc/lf_allocX64.h:1876–1914

}

static Y_FORCE_INLINE int LFPosixMemalign(void** memptr, size_t alignment, size_t size) {
    if (Y_UNLIKELY(alignment > 4096)) {
        const char* error = "Larger alignment are not guaranteed with this implementation\n";
#ifdef _win_
        OutputDebugStringA(error);
#endif
        NMalloc::AbortFromCorruptedAllocator(error);
    }
    size_t bigsize = size;
    if (bigsize <= alignment) {
        bigsize = alignment;
    } else if (bigsize < 2 * alignment) {
        bigsize = 2 * alignment;
    }
#if defined(LFALLOC_DBG)
    if (alignment > sizeof(TAllocHeader)) {
        bigsize += alignment;
    }
#endif

    *memptr = LFAlloc(bigsize);

#if defined(LFALLOC_DBG)
    if (alignment > sizeof(TAllocHeader)) {
        // memptr isn't aligned due to alloc header
        const auto* header = GetAllocHeader(*memptr);
        *memptr = (void*)((const char*) (*memptr) + alignment - sizeof(TAllocHeader));

        // make fake header to retrieve original header ptr on dealloc
        auto* next = GetAllocHeader(*memptr);
        next->Tag = DBG_ALLOC_ALIGNED_TAG;
        next->Size = (uint64_t)header;
        next->Cookie = 0;
    }
#endif

    Y_ASSERT_NOBT((intptr_t)*memptr % alignment == 0);
    return 0;
}

static Y_FORCE_INLINE void* LFVAlloc(size_t size) {
    const size_t pg = N_PAGE_SIZE;