Re: [sqlite] Request for an example code use async IO
To avoid races you should do this: Main thread: - sqlite3async_initialize() - Starts child thread - sqlite3_open_v2() - sqlite3_exec(), sqlite3_prepare_v2()/sqlite3_step(), etc - sqlite3_close() - Halts and joins child thread - sqlite3async_shutdown() - exits Child thread: - sqlite3async_run() Pavel On Tue, Apr 5, 2011 at 1:45 PM, Ricky Huang wrote: > On Apr 4, 2011, at 7:10 PM, Pavel Ivanov wrote: > >>> Can someone be so kind as to provide a short example of initializing >>> asynchronous module, opening DB for read/write, create a table, and write >>> some data to it? >> >> […] All you need to do is to initialize async module and call >> sqlite3async_run in the dedicated thread. […] > > Thanks for getting back to me Pavel. > > So let me see if I understand what you said: > > Main thread: > - Starts child thread > - sqlite3_open_v2() > - sqlite3_exec(), sqlite3_prepare_v2()/sqlite3_step(), etc > - sqlite3_close() > - Halts and joins child thread > > Child thread: > - sqlite3async_initialize() > - sqlite3async_run() > - sqlite3async_shutdown() > > > is that correct? ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Request for an example code use async IO
On Apr 4, 2011, at 7:10 PM, Pavel Ivanov wrote: >> Can someone be so kind as to provide a short example of initializing >> asynchronous module, opening DB for read/write, create a table, and write >> some data to it? > > […] All you need to do is to initialize async module and call > sqlite3async_run in the dedicated thread. […] Thanks for getting back to me Pavel. So let me see if I understand what you said: Main thread: - Starts child thread - sqlite3_open_v2() - sqlite3_exec(), sqlite3_prepare_v2()/sqlite3_step(), etc - sqlite3_close() - Halts and joins child thread Child thread: - sqlite3async_initialize() - sqlite3async_run() - sqlite3async_shutdown() is that correct? ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Request for an example code use async IO
> Can someone be so kind as to provide a short example of initializing > asynchronous module, opening DB for read/write, create a table, and write > some data to it? There's nothing special in opening db, creating table or writing data into it while using async module. You should use the same API in the same way you use it without async module. All you need to do is to initialize async module and call sqlite3async_run in the dedicated thread. I believe everything is well explained in here http://www.sqlite.org/asyncvfs.html (pay special attention to section 2.0) and in sqlite3async.h header. Do you find something specifically hard to understand? Pavel On Mon, Apr 4, 2011 at 9:47 PM, Ricky Huang wrote: > Hi, > > I am planning on incorporating the sqlite3async module into my project to > improve code responsiveness during disk writes. I've Googled all over for > example code on using the module but can't find any. > > Can someone be so kind as to provide a short example of initializing > asynchronous module, opening DB for read/write, create a table, and write > some data to it? > > > Thanks in advance. > ___ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
[sqlite] Request for an example code use async IO
Hi, I am planning on incorporating the sqlite3async module into my project to improve code responsiveness during disk writes. I've Googled all over for example code on using the module but can't find any. Can someone be so kind as to provide a short example of initializing asynchronous module, opening DB for read/write, create a table, and write some data to it? Thanks in advance. ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
