Function prepareEncode

Core/MMKV_IO.cpp:420–428

constexpr uint32_t ItemSizeHolderSize = 4;

static pair<MMBuffer, size_t> prepareEncode(const MMKVMap &dic) {
    // make some room for placeholder
    size_t totalSize = ItemSizeHolderSize;
    for (auto &itr : dic) {
        auto &kvHolder = itr.second;
        totalSize += kvHolder.computedKVSize + kvHolder.valueSize;
    }
    return make_pair(MMBuffer(), totalSize);
}

#ifndef MMKV_DISABLE_CRYPT
static pair<MMBuffer, size_t> prepareEncode(const MMKVMapCrypt &dic) {