On 17 Feb 2017, at 8:54am, Clemens Ladisch <[email protected]> wrote:
> Bob Friesenhahn wrote: > >> Does anyone have an idea about this specific problem that we encountered? >> >> It is not clear to me if this is a threading issue, or memory corruption >> issue > > It's probably memory corruption causes by a threading issue. > > The original mail said: > >> Any thread may acquire and use this one database connection at any time. > > Add a mutex. Lock it before beginning _any_ transaction (read or read/write), > and unlock it only after the transaction has finished. You may or may not want to use SQLite’s own mutex routines: <https://www.sqlite.org/c3ref/mutex_alloc.html> > Alternatively, give each thread its own connection. Often the route which leads to a program which is simpler to read and only a tiny bit slower. Simon. _______________________________________________ sqlite-users mailing list [email protected] http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
