| 333 | } |
| 334 | |
| 335 | void MMKV::clearMemoryCache(bool keepSpace) { |
| 336 | SCOPED_LOCK(m_lock); |
| 337 | if (m_needLoadFromFile) { |
| 338 | return; |
| 339 | } |
| 340 | MMKVInfo("clearMemoryCache [%s]", m_mmapID.c_str()); |
| 341 | m_needLoadFromFile = true; |
| 342 | m_hasFullWriteback = false; |
| 343 | |
| 344 | clearDictionary(m_dic); |
| 345 | #ifndef MMKV_DISABLE_CRYPT |
| 346 | clearDictionary(m_dicCrypt); |
| 347 | if (m_crypter) { |
| 348 | if (m_metaInfo->m_version >= MMKVVersionRandomIV) { |
| 349 | m_crypter->resetIV(m_metaInfo->m_vector, sizeof(m_metaInfo->m_vector)); |
| 350 | } else { |
| 351 | m_crypter->resetIV(); |
| 352 | } |
| 353 | } |
| 354 | #endif |
| 355 | |
| 356 | delete m_output; |
| 357 | m_output = nullptr; |
| 358 | |
| 359 | if (!keepSpace) { |
| 360 | m_file->clearMemoryCache(); |
| 361 | } |
| 362 | // inter-process lock rely on MetaFile's fd, never close it |
| 363 | // m_metaFile->clearMemoryCache(); |
| 364 | m_actualSize = 0; |
| 365 | m_metaInfo->m_crcDigest = 0; |
| 366 | } |
| 367 | |
| 368 | void MMKV::close() { |
| 369 | MMKVInfo("close [%s]", m_mmapID.c_str()); |