GithubStar/MMKV
1
0
Fork 0
mirror of https://github.com/Tencent/MMKV.git synced 2026-10-17 04:30:56 +08:00
Code Issues Packages Projects Releases Wiki Activity

protect from file size change on multi-process load #1599

Browse Source
This commit is contained in:
guoling
2025-11-24 11:46:14 +08:00
parent d18e2b92a7
commit 09c27e6d7b
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Core/MMKV_IO.cpp
+7
View File
@@ -72,6 +72,13 @@ void MMKV::loadFromFile() {
#endif
if (!m_file->isFileValid()) {
m_file->reloadFromFile(m_expectedCapacity);
} else if (isMultiProcess()) {
// the file size may change by other process between instance creation and loadFromFile
// because we have lazy load
auto actualFileSize = m_file->getActualFileSize();
if (actualFileSize != m_file->getFileSize()) {
m_file->reloadFromFile(m_expectedCapacity);
}
}
if (!m_file->isFileValid()) {
MMKVError("file [%s] not valid", m_path.c_str());