On Sun, Nov 25, 2012 at 4:12 AM, Martin Velek <martin.ve...@gmail.com>wrote:
> Hello, > > I am trying to port the Sqlite to a FreeRTOS and I am little bit > confused about mutex implementation, especially order of calling init > functions. > On the Custom Builds documentation page > http://www.sqlite.org/custombuild.html is stated: > > "The auxiliary C code file can contain an implementation of > sqlite3_initialize() that registers an appropriate VFS and also > perhaps initializes an alternative mutex system (if mutexes are > required) or does any memory allocation subsystem initialization that > is required. ..." > > but the Mutex documentationpage > http://www.sqlite.org/c3ref/mutex_alloc.html tells: > " a custom mutex implementation using the SQLITE_CONFIG_MUTEX option > of the sqlite3_config() function before calling sqlite3_initialize() > or any other public sqlite3_ function that calls > sqlite3_initialize()..." > > If I undestand correctly I need to call sqlite3_config() before > sqlite3_initialize(). Thus the mutex system cannot be registered > inside sqlite3_initialize() as stated on the Custom Builds > documentation page. > The sqlite3_config(SQLITE_CONFIG_MUTEX,...) call tells SQLite what the mutex functions are, but does not activate the mutex module. The mutex module is activated by sqlite3_initialize(). Perhaps we should change the documentation to say "activate" instead of "initialize".... > > Thank you for explanation > > Best > Martin Velek > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
