Constant tikv_jemalloc_sys::MALLOCX_ZERO

pub const MALLOCX_ZERO: c_int = 0x40;

Initialize newly allocated memory to contain zero bytes.

In the growing reallocation case, the real size prior to reallocation defines the boundary between untouched bytes and those that are initialized to contain zero bytes.

If this option is not set, newly allocated memory is uninitialized.