Method getDataWithoutMTimeForKey

Core/MMKV_IO.cpp:1984–2016

}

mmkv::MMBuffer MMKV::getDataWithoutMTimeForKey(MMKVKey_t key) {
    SCOPED_LOCK(m_lock);
    SCOPED_LOCK(m_sharedProcessLock);
    checkLoadData();

    auto raw = getRawDataForKey(key);
    assert(raw.length() == 0 || raw.length() >= Fixed32Size);
    if (raw.length() < Fixed32Size) {
        if (raw.length() != 0) {
#ifdef MMKV_APPLE
            MMKVWarning("key [%@] has invalid value size %u", key, raw.length());
#else
            MMKVWarning("key [%s] has invalid value size %u", key.data(), raw.length());
#endif
        }
        return raw;
    }
    auto newLength = raw.length() - Fixed32Size;
    if (m_enableKeyExpire) {
        auto ptr = (const uint8_t *) raw.getPtr() + newLength;
        auto time = *(const uint32_t *) ptr;
        if (time != ExpireNever && time <= getCurrentTimeInSecond()) {
#ifdef MMKV_APPLE
            MMKVInfo("deleting expired key [%@] in mmkv [%s], due date %u", key, m_mmapID.c_str(), time);
#else
            MMKVInfo("deleting expired key [%s] in mmkv [%s], due date %u", key.data(), m_mmapID.c_str(), time);
#endif
            removeValueForKey(key);
            return MMBuffer();
        }
    }
    return MMBuffer(std::move(raw), newLength);
}

#define NOOP ((void) 0)