sqliteOsWriteLock  180 ext/sqlite/libsqlite/src/os.h int sqliteOsWriteLock(OsFile*);
sqliteOsWriteLock 1341 ext/sqlite/libsqlite/src/pager.c        rc = sqliteOsWriteLock(&pPager->fd);
sqliteOsWriteLock 1722 ext/sqlite/libsqlite/src/pager.c     rc = sqliteOsWriteLock(&pPager->fd);