On 06/02/2014 08:36 PM, Hick Gunter wrote:
If you compile with SQLITE_THREADSAFE=1 then multiple calls from different
threads will be serialized by SQLite.
"Serialized" means that only one thread at a time will be allowed to run within SQLite;
API calls from other threads will block until the currently running thread returns. If your
application uses virtual tables implemented with native tables, then there may be an issue with
deadlocks (appl -> sqlite3_step -> virtual table code -> sqlite3_step would cause the
same thread to recursively enter SQLite).
Both FTS4 and Rtree do this, and both work with SQLite connections in
serialized mode. SQLite is re-entrant.
Dan.
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