Hello, I am using SQLite on iOS developing. Now I need the better performance of multithread-reading-and-writing and the robustness ofWAL journal mode without mmap. As I know,WALjournal mode without mmap requires EXCLUSIVE locking mode, which may prevent multithread-reading-and-writing. But mmap may increase theprobability of database corruption. While my app has a huge number of users(more than ten-million), I have to consider more about robustness. see also: http://www.sqlite.org/wal.html#noshm http://www.sqlite.org/pragma.html#pragma_locking_mode
As a conclusion, I wonder, in SQLite, whether is possible for 1. WAL mode 2. multithread-reading-and-writing, not serial 3. without mmap If yes, can you tell me a general idea for implementing this. No matter it needs to modify the source code or how difficult it is. Thank you for your time and I appreciate your reply.
